REVOLUTIONARY new INLINE 4 - ALFADAN BIG BLOCK i4 ENGINE

[@d4a]

Become a Tuning Pro: hpcdmy.co/dr4a Support the channel by shopping through this link: amzn.to/3RIqU0u www.startengine.com/alfadan Follow-up interview with Alfadan CEO: kzbin.info/www/bejne/rKasooaBftqdfMk

[@joelpinheiro4375]

driving 4 answers, Maybe it is something like the Nissan solution that will be installed in the infinity motors. It is the variable compression motor. On the presentation video you can see the connecting rods disappearing.kzbin.info/www/bejne/oGGkn2aIl72Whsk

[@carlosandleon]

Bro this is a scam

[@1973keith]

How is this video still up?! It is clearly a scam. kzbin.info/www/bejne/np3Fh6evgJ1_jMk

[@carlosandleon]

@@1973keith lol, a fellow fan I see

[@catchnkill]

How about this one? A detail nearly sentence by sentence breakdown of this cheat speech of the vaporware engine company's CEO's so called response. If you still believe in this, you must be part of the gang to cheat investors money. Money for nothing if anyone invest in that. kzbin.info/www/bejne/gn_dgItphbeAa6M&ab_channel=TheWorkshop

[@alfadanhighperformanceoutb8416]

Mark, The patents you have seen were created to protect the current design from being bypassed with the scotch yolk or a similar design. When we did the analysis on the SY we found many potential issues with the bearing and the lower bridge of the SY. As a result the design developed into a completely different configuration and new patent applications. Most of the work we have done relates to the new rod design, piston and the bearings. The rest of the engine is based on tried and proven technology used in typical i4s. We have been blessed to have Mahle Powertrain as part of this project because the knowledge, experience and resources they bring to the table can't be matched by even the largest competitors in the marine industry. Regards, Albert

[@dirtygarageguy]

Can we see the malhe report? Also your patent that filed is basically useless? Can you explain this?

[@AFMR0420]

Does it have connecting rods that travel only vertically pushing a teeter totter that connects two pistons, the firing of one piston pushing down on one side of the teeter totter driving the other up providing the compression for the opposing piston while providing the workforce to turn the drive shaft without causing the engine to have imbalance issues caused by connecting rod diagonal travel?

[@vabels54]

Very interesting! I am waiting for the news on that tricky line/circular movement transformer!

[@AFMR0420]

Marine technologies are still the only craft in the world to equip a solid state propulsion system that runs without fuel. I think that combining the right technologies we could invent solid state propulsion without fuel for all forms of vehicular travel, even flight. Even improving the combustion engine will help us get there.

[@erikziak1249]

@@AFMR0420 Think about what you just wrote. Such a mechanism would still have secondary imbalances, even if they were greatly reduced. But the complexity and problems related with getting a smoothly turning (constant angular momentum) output would make this very impractical. I have something different in mind. Using another old-tech solution. I never imagined it combined in an internal combustion engine so far.

[@robertchamberlain4904]

Worked for CAT for ten years, yet never heard anything about secondary vibrations. the CAT 3304 engine has 2 counterbalance shafts, and I knew they were for balance, but never truly understood until you explained it. See, you never stop learning, even at 67.

[@douglasjoaquim3990]

👏🏻👏🏻👏🏻

[@worlore1651]

Cat uses more torque than rpm anyways

[@DudesIn101]

I hope it all pans out.i like the rotary engine myself.

[@forcedinduction5245]

The Cat only turns 2500 rpm

[@worlore1651]

@@forcedinduction5245 thought you meant actual 🐈

[@evergreatest7644]

I like how he explains primary and secondary balances in every video where it needs to be explained, unlike other youtubers who just ask you to watch the other video where they explained that concept.

[@xXturbo86Xx]

If he does that in very single video, it gets really hard and boring to watch. If you don't even know the basics then what are you doing here anyway.

[@evergreatest7644]

@@xXturbo86Xx No offense, but did you understood my comment ?

[@yngfljm2277]

@@evergreatest7644 no offense, but it's *understand. "Have you understood my comment" would be correct. I hope this came across as helpful, rather than condescending.

[@yngfljm2277]

@@xXturbo86Xx Then just skip it 4HEad Pepega Clap WR KMs

[@evergreatest7644]

@@yngfljm2277 I used Google translate and I put both the words in the sentence, it was showing the same thing in my language. I know google translate isn't 100% accurate, but I didnt really had any other option at that time.

[@mzungusi]

Your ability to explain complex engineering principles clearly ( in a second language ) is remarkable. Thank you for making me smarter.

[@ghenkhoash2440]

Are you related to Simon Fraser University?

[@mareoj]

oh boy cant wait for "i swapped my car with a boat engine" videos

[@BrickNewton]

Evinrude 2 stroke v8 swap kzbin.info/www/bejne/gIfJoqSJl6dmhtE

[@guerra3710]

bro imma throw this bish in my lil toyota pickup

[@isaiahwelch8066]

Hey, it worked in Fast & Furious 7, lol

[@blackjack117200]

First thing I thought of😂😅

[@raymondwandell8880]

Boat motors have virtually unlimited supply of low pressure low temperature coolant. Car engines can't compete unless you replace passengers and cargo with coolant.

[@diyhell8712]

Can't believe I've loved engines since I was a kid, and I'm now 52, and I'd never known thiis issue with inline 4s. Every day is a school day - thanks!

[@shawn13mertle13]

When I worked on cars it was understood that they will always run a little more on the rough side than a v. I don't remember any class time or talking about the exact cause.

[@anhedonianepiphany5588]

It’s not just an inline-4 problem, as most engine configurations have these secondary imbalances (and/or others) to deal with. As you probably know, inline-6 engines are pretty ideal when it comes to these balancing issues. A prime example of addressing imbalance in a large(r) capacity straight four was Mitsubishi’s 2.6L Astron (4G54) which was one of the engines on which they introduced their patented dual balance shaft system (which was then licensed to Porsche, among others). I believe they were marketed as “Hemi” 4 cylinder engines in the US, and from the late ‘70s to the early ‘90s a significant proportion of Australians were driving cars powered by the Astron or Astron II 2.6L (used in Mitsubishi Sigma/Scorpion models and for their successor the Magna).

[@t.s.racing]

I'm trying to be a contributor here, and not a know it all. That being said, back in the early 80z, I built several Merc cruiser 4 cylinder Racing Engines, with the 460 Ford Racing cylinder head. These were bored/stroked, billet crank and rods. Dry sump of course as well as MSD crank triggered ignition. To say that they were EXTREMELY successful and competitive, would be a understatement. Remember, these were pushrod, 2 valve engines, yet radical on every conceivable level. To see the dyno stand shake, until it came up on the cam, and somewhat smoothed out, was a sight to behold. Great video Sir.

[@mayuravirus6134]

Pushrod for its ancient lineage it does have low end torque

[@drew8256]

I remember those engines. Very powerful and economical. Always wonder why it didn’t move to automotive industry.

[@toml1446]

@@mayuravirus6134 Pushrod is the same age as over head cams man less weight and smaller size make it more valuable in most applications.

[@colinmunro7337]

There's an NA comp eliminator mercury full effort it's over 700hp😉

[@toml1446]

@@colinmunro7337 oh thats nifty, where can I find that?

[@ABCDEFGHIJKELA...]

I've been hoping FreeValve would see use in the common market, it's an amazing new way to move combustion into the next era at a huge leap in efficiency, good stuff!

[@marcopolo8584]

I see all these heavy, complicated camshafts and variable valve timing and lift systems manufacturers are coming out with and throw my hands up wondering "Why not replace all this with a handful of actuators!"

[@marcopolo8584]

However, I wouldn't consider performance engines for huge luxury boats "common market"

[@hyattbusbey3563]

Intake valves on the Fiat Multiair is freevalve ish, no?

[@marcopolo8584]

@@hyattbusbey3563 It shares the characteristics of having complete control over valve motion, but it has a glaring flaw in that instead of being far smaller, lighter and simpler than a simple DOHC engine, it's significantly more complex. That's the real appeal of electronically actuated valves, they're just simpler and lighter.

[@jamesgeorge4874]

@@marcopolo8584 uhm, "freevalve" has less moving parts, than a cam operated valvetrain, but from a software standpoint, electrical standpoint, and engineering standpoint, is several orders of magnitude more complicated than a camshaft. An arrangment where the valves could not possibly contact the pistons could be arranged, but overall performance will be diminished to a point that negates the technology. In an application where contact *IS* possible, it is not permittable, as the engine will destroy its self. One glitch, engine done. At 6000 rpm, the piston is traveling up, and down 100 times, *per second* There is literally no time for a mistake.

[@komrade223]

Fun fact about marine gas engines. In the early 2000s, you could buy a GMC or Chevy 2500 truck, with an 8.1 liter V8 gasoline marine engine. Yes, it could pull the same weight as the diesel equiped models, just couldn't drive past any gas stations.

[@velvetjones]

That's not fair, a friend had one that averaged nearly 12mpg with about 60% highway driving. Was a 3/4 ton extended cab long bed GMC 2 wheel drive. He had a bed cap on it which helped a little.

[@wihamaki]

I use to have a 8.1 4x4 at the military base I worked at. There was one spot where there were tire ruts going up a hill. If you followed those ruts halfway up and then cranked the wheel hard and stomped on the pedal, the truck would bunny-hop. It was the go to truck for trips as cops usually wouldn't mess with anything with Federal plates on it. As far as I know, the heaviest thing it was used for was flower pots at the greenhouse. Gas price? To us it was all free fill-ups so nobody cared about the mileage.

[@uglyfxxx6981]

The 8.1 was a beast.

[@Nirotix]

Yeah with an 8.1 L V8 gas engine towing, you'ld certainly be 'rolling the dice' passing any gas stations on the highway. Even with dual tanks.

[@komrade223]

@@velvetjones Not to be that guy, but was he hauling or towing with it? Once it had a load on it, that engine drank fuel. Not crapping on it, seemed like a very well built engine, just very inefficient in a popular use.

[@ZPositive]

My guess at their connecting rod design is a horizontally slotted crank/rod journal. It would make the rods have purely up/down motion through the stroke. I guess it would even eliminate the need for a wrist pin. But keeping the rod/crank journals healthy would be quite the challenge.

[@lsorense]

I think you are correct looking at their patent: patents.google.com/patent/US10378578B1/en I too would worry about how durable that sliding is going to be, but the piston slides too I suppose, and it does have oil there (I would hope), so maybe it is OK. Of course combined with using freevalve, that is probably the main way they are reducing part count.

[@ZPositive]

@@lsorense well how bout that! I'm no Smarty McSmarterton, so the slotted connection is no stroke of brilliance. That square to round bearing seems like the true genius idea. It makes the longitudinal/sliding forces act upon an _area,_ rather than a _line_ inside the slotted journal.

[@ZPositive]

@@lsorense and I forgot to mention the forces inside the sliding connection inside these new connecting rods are a far more difficult thing to manage than the forces at the piston/wall interface. There are real pressures spread across the rod's bearing surfaces that are constantly trying to force the oil out, and real forces trying to turn the slot into an oval, which is bad for oil film thickness. The pston/wall interface is a vastly different engineering problem, where the speeds are greater, but the forces are comparatively tiny. Also, think of how much strengthening is put into 6-bolt cross bolted main caps. They're a part of many engines where almost no expense is spared in the quest for bottom end rigidity. And these new rods are handling very similar loads to the main bearings, while being a far weaker design than a standard connecting rod. My guess is there are some expensive materials being used in the rods.

[@nicklacerte7134]

I was thinking something like that aswell

[@poptartmcjelly7054]

​ @Lennart Sorensen Exactly what i thought. This solution is nothing new actually, i've torn refrigerator compressors that work with the exact same principle. Those compressors were made in the late 80's/early 90's so you can imagine for how long this solution has already existed. Making this mechanism reliable would be no problem imo. The way it's done in the compressor i've torn down is by slotting a round tube and using a round slug to slide inside. The slotted tube is welded to the piston and kept steady by the cylinder. Here i've even managed to find a video which shows what i'm talking about. kzbin.info/www/bejne/inKZmpWKa7WlmM0 So in a sense you could use the same old journal bearings, just that instead of a shaft rotating in them it would slide back and forth.

[@jesuschristislord77733]

Finally the perfect engine for my Reliant Robin pavement plow.

[@d4a]

😂

[@sandasturner9529]

Got a laugh outta me.

[@peterweller8583]

Splort really? You Sir ARE a brave fool

[@alancollard8939]

dont slag off the reliant robin motor , on road courses porsche cant live with me

[@blek3539]

Its a scam

[@williamschneider1953]

An NA marine I4 making 650 hp is insane, would be really cool to see the connecting rod design, I wonder if its sort of like a scotch yoke or maybe a two piece conrod.

[@blek3539]

Its a scam

[@artysanmobile]

@@blek3539 Well everyone, the world famous KZbin commenter “blek” has revealed the truth, thus saving us all the time and effort to learn. How wonderful to have this priceless source of knowledge, and for free!

[@beastdud5376]

@@blek3539 how do you know?

[@blek3539]

@@beastdud5376 kzbin.info/www/bejne/n17NYYhrmbR2fdE

[@blek3539]

@@beastdud5376 watch "Alfadan is finished?!" by Dirty Garage Guy

[@Acceleronics]

I've seen several engines that experienced a change in piston mass while operating.

[@NotQuiteMelvin]

Underrated comment

[@chrisconnell2147]

how could u tell?

[@wjbrevenge]

@@chrisconnell2147 oh idk maybe when theres suddenly a hole in the hood and something flying into orbit

[@mojeimja]

...once :)

[@slappopotamus1001]

I understood that reference .meme

[@BojanBojovic]

From a driver's perspective balancing shafts are magical. I remember my old 2l Twin Spark being smooth as electric motor, but some people removed them so the engine could spin better. Not sure how much more power that gave them other than creating a large vibrator with 4 wheels.

[@whereswaldo5740]

The ladies loved it.

[@Hmmmst]

@@whereswaldo5740 😂

[@charlesfriend9557]

@@whereswaldo5740 Hardly dave@son?

[@Dave5843-d9m]

Japanese sports bikes are often fitted with balance shafts. These run at 2x crank speed but power absorption is relatively low. Forces generated in one direction are recovered in the rebound direction. The bearing friction is really the only cost. The benefits are lighter engine mounts and frame strength can be concentrated where it’s needed to absorb suspension loads. I would expect car designers to make use of the smooth running engine with lighter weight engine mounts, etc.

[@KenyaSG]

It is common for prelude owners with h series engines to remove the balance shaft, there is no noticeable vibration and power goes up.

[@deansmits006]

Marketing to marine is a better move than automotive, as automotive is moving to electric pretty quick. Marine has completely different use cases with very different demands that electric may not be able to handle for a while, so a more advance ICE engine has better chances of survival there.

[@jaybosher6144]

You might see massive yachts moving to hybrid systems but for most boats a battery bank is completely out of the question. Good point

[@sillyoldbastard3280]

Automotive will move to EV in high density population areas. Here in Australia and many areas of he US and South America it won't fly until they get charge rates to single digit minutes rather than hours.

[@konnerkramer329]

@@sillyoldbastard3280 not only that but until they build enough charge stations to replace every gas station in the world... i don't think farmer joe is going to drive to town to charge his f150 to use a 1/4 of its charge just to get home. the problem with electric cars is theres no way to store it. you cant throw 2 5 gallon cans full of electricity in the bed of a pickup.

[@ericbrenner690]

@@konnerkramer329 That's what a home charging station is for.

[@dom3827]

There are already full electric giant containerships in service. So much to that.

[@paulfaulkner6299]

Fascinating; I am going to jump to the conclusion that the connecting rod ends (both at the gudgeon pin end and crank end) are on cams of some description as a counter to the 56/44 mass problem explained in the video. If some sort of eccentric cam design could offset this problem then those values would be mechanically constant throughout the rev range and indeed it may stop the engine from shaking itself to pieces. Time will tell. Fascinating piece though and again, very, very, VERY well explained by someone whom has to be said has a remarkable command of English as a 2nd language. Thank you for sharing this with the rest of us.

[@BronyumHexofloride]

sounds incredible but i'm going to wait to see the final product, it being a running prototype means there is the potential for more improvements as the development continues

[@jasmith1867]

Do you have any ideas on how a connecting rod can be reinvented. Without removing the connecting rod or crank shaft system? As it is currently designed a connecting rod would have to effectively be disconnected before BDC. And reconnected afterwards. I can't picture a machine with less moving parts if that is the answer.

[@patrickhascall7401]

There is no prototype, no running engine, nothing has been built. SCAM SCAM SCAM.

[@Eduardo_Espinoza]

+JA Smith i think it's gonna work like a airsoft AEG piston

[@Dave5843-d9m]

The con rod could be working on an eccentric strap where the rod runs in slides. Much like a hydraulic pump.

[@jarodolsen8955]

My mind immediately went to, imagine how much hp and tq this thing would make with a turbo or supercharger!

[@runespaze]

And then you must’ve said “wait the solution for adding torque is already there”

[@jarodolsen8955]

@@runespaze lol no, im a power monger. The more hp and tq the better!

[@bossiethecow]

The compressor would be as large as the engine to build any kind of pressure at that displacement Can't wait to see it ;)

[@MgoRavenSama]

It might put too much stress on redesigned rods. 5.5k rpm isn't like crazy high for a na engine. Now figuring out a way to connect them to push 6 or 8 cyclinders sounds crazy.

[@maxnovakovics2568]

@@bossiethecow ram air compressor, exterior mount 🎉

[@KumeTheWolf]

I can't be the only one that sees this guy as the Anton Petrov of the automotive world. Not even because of the accent, they are both really happily passionate about completely nerding out on a subject they love.

[@alanunruh7310]

Dead on..... Could be cousins!!!!

[@scottbutler2343]

I honestly thought it was him for a few seconds. The voice inflection is almost identical.

[@joshuagoodsell5952]

Yea they have like the same voice

[@fuji302]

You have stumbled upon the theme of the fourth Matrix movie.

[@Markbell73]

Brilliant catch. I waa thinking the same thing.

[@ahobimo732]

The fact that the Alfadan CEO is an engine head is a very encouraging detail. CEOs that weren't originally inventors/engineers are just salesmen, IMO. And that's NOT a compliment. But Alfadan seems to be more than snake oil. Can't wait to learn more about their concepts in the future.

[@YAMR1M]

Its gone... No more updates and they took the money and apart from a website that has been sitting there doing nothing for almost a year. The company is all but gone now.

[@ahobimo732]

@@YAMR1M Wow. That really sucks. I guess I was fooled after all. Thank you for the info. Honestly, I'm quite embarrassed. But I'll keep my original comment up. Not gonna pretend I never said it. Lesson learned, I suppose. I actually didn't think it was possible for me to become MORE cynical, but it appears that's what's called for. 😔

[@countryside_hobbies]

Camless heads have been running in labs for years, engine head in this case means nothing. Sounds exactly like snake oil, unfortunately.

[@drivko6393]

This reminds me all of those "revolutionary batteries" from last 3 decades, bet we are still using the same old Li-Ion (Li-Pol) ones

[@1975reispedro1]

True and still going 😂😂

[@papermaker85]

They have a dozen lithium batteries

[@altaccount4697]

I've seen so many "mind-blowing" and "game-changing" batteries over the years. And yet, none have yet caught on. . And yet, my mind remains unblown and the game has not been changed.

[@LightCrasher]

If you look back in time, you'll find out that making of technology and integrating it almost always separated by decades, so no surprise here.

[@jasmith1867]

I know what you mean. But those top notch corporations lending their names to be used is interesting. They wouldn't let their reputations be damaged if this didn't have some potential...I subscribed just to learn the answer.

[@joosepkunder]

One of these rather long videos where i didn't feel needness to scroll forward. Very nice video, thank you!

[@Jim202030]

agreed, skipping was not required.

[@saintadolf5639]

Yes! Everything was worth listening to.

[@MRGF78]

Useful information, even though the way he talks is freaking annoying... I've got to pause the video and punch something every so often...

[@VauxhallViva1975]

Yes, excellent descriptions of the traditional i4 arrangement and graphics to help non-engine people understand the issue. Well done. :)

[@gravityskeptic8697]

Good point. Non tech people will not be insterested anyway, so why explain the topic at their speed. I stopped watching because the pace was too slow.

[@slashsplat]

You are amazingly well-spoken. Knowing your subject is obvious, but you also have a great presentation, tempo, and inflection. Exciting stuff with Alfadan, too.

[@clintdenman3037]

You know something, I am a mechanic not a engineer or engine builder but I actually learnt something new and I have actually made or assembled a few stroker sets for people anyway people who are like you that have time and patience to explain how the engineer has to deal with the problems of the mathematics and physics of the reciprocating engine ,I would have liked to have that explained when I was a young apprentice because this would apply to many situations in vehicle engines even the gearbox not as reciprocating but as in balance and force as in the thrust .

[@hemaccabe4292]

I love the lecture about engines. Alfadan, eh I’ll believe it when it releases commercially.

[@gofres]

I just hope they didn't replace the con rods with con artists.

[@thadsprenger4932]

i know your right

[@achgreentree]

connecting rod out, ponzi link in!

[@Carubines]

They aren't rods which eliminate friction

[@AngryTurds]

Bluetooth connecting rods.

[@zefzone-215]

@@Carubines Highly doubt the solution involves zero friction

[@F2Frank1]

You said this was a game changer. I think the real game changer is the internal combustion engine that CV Motion Tech has designed. They have successfully removed the crankshaft from their engine design. Their engine is going to make a major impact on our planet for the better. CV Motion Tech really has something all need to see in my opinion.

[@gozzak]

I believe you will find they have gotten rid of the con-rod by doing something like this : kzbin.info/www/bejne/iaCspqV9hqxsd68

[@gozzak]

The CV Motion Tech engine is truly amazing. You can see how their engine works here : kzbin.info/www/bejne/q5qYfp-kmpt3hLc Also, check out the Conjoined Piston Engine design by Craig Laycock : kzbin.info/www/bejne/iaCspqV9hqxsd68 I think Alfadan uses something similar to the design in Craig's Conjoined Piston Engine When you see it in operation (the Conjoined Piston Engine and the CV Motion Tech, you will ask yourself - WHY DID NO ONE THINK OF THIS BEFORE !!!!

[@graememartin1554]

I take my hat off to your ability to teach in simplicity terms. Keep it up, your education is stimulating. Well done.

[@SalveMonesvol]

This is very interesting. An efficient i4 could mean fewer turbo i3's and postponing the extinción of 3L+ gasoline engines.

[@S.ASmith]

Imagine a twin turbo 6L i4 engine... The fuel efficiency gains in that over a V8 would be huge.

[@rotor13]

@@S.ASmith It wouldn't. You have to consider total airflow and fuel consumption. You already have one constant.... 6 liters of air being displaced. For every unit of air, you have to have certain units of fuel to match given the power needs. This doesn't change with cylinder count. The fuel efficiency is exacerbated and made complex when you add turbocharging to an engine. A 600hp, 6L twin turbo 4-cylinder engine would be equally as powerful as a 6L naturally aspirated V8 engine because it doesn't matter what engine makes the power, the fuel consumption is constant due to necessary airflow required. The unknown variable is HOW efficient is your twin-turbo 6L i4 really is when its not turbocharged vs the same displacement V8 engine with all other things being equal such as compression, cam profile, chamber design, valve size etc. Which I'm going to take an educated guess and say that the 4 cylinder is going to be a little less fuel efficient at making power because it has more rotating mass due to the size and material of the components needed to make such power. Turbocharging increases fuel consumption and creates a lot more heat.

[@SalveMonesvol]

@@rotor13 You wrote words. An i4 that solved the secondary imbalance problem without counter rotating shafts would indeed be more efficient than a V8 of equivalent power, since the V8 would have 26% more surface area for the same swept volume.

[@jovanu4]

@@rotor13 imagine talking about efficiency and not once mentioning the ratio between cylinder volume and surface area which by default makes the engine more efficient.

[@donaldcrites7504]

@@S.ASmith power requires fuel. 300 HP needs a fixed amount of gasoline . you can tweak things here and there and save a fraction of a percent but the amount of gasoline to make 300 HP is almost a constant. small turbo engines seem fuel efficient because out side of boost they are not making any power. a 1.5 l turbo motor is at best making 50 to 75 HP in the 1500 - 2500 rpm range where as a 5.3l N/A V8 is making 175 to 200 HP in the 1500 to 2500 rpm range.

[@matinirudolph8420]

Wait till Honda gets a hold of it and magically makes it rev to 8,500 rpm hahaha

[@lordki1635]

That’s good for at least 770 to the crank lmao

[@Sidghengiskhan]

wait till kawasaki gets a hold of it you mean.

[@techs1smh13]

Yamaha 9500.

[@quadzilladon4653]

Let’s go 😎

[@ShadowDog87]

I am absolutely putting one of these things in my 2016 Honda Fit. Could you imagine?

[@maixechrys6264]

The marine industry is in dire need of a powerfull reliable and efficient outboard, I really hope it works.

[@v4skunk739]

Looks like it will happen tbh.

[@riccochet704]

Mercury did just release their V12 600HP outboards.

[@jayelwin]

@@riccochet704 so can you believe a i4 beats a v12 in HP?

[@jcnpresser]

The marine industry needs a constant velocity transmission for outboard, would bring top speed up and rpms down thus reducing fuel consumption. Maybe there is one but I’ve never seen one on all the bass boats I’ve seen.

[@riccochet704]

@@jcnpresser That's about the worst idea I've heard of. Been running boats for decades, and the last thing I want on there is an unreliable transmission. CVT''s don't handle shock loads at all. It would destroy itself rather quickly. The new Mercury Verado V12 uses a 2 speed transmission that's getting good reviews.

[@mieszkowrobel2274]

Dude, before you introduced me to freevalve I was thought to myself "the only way to reduce secondary imbalance in an i4 is pushrod style function" and I GOT "EM!!! Yay. I can't wait to see this motor. thanks for always teaching me!

[@Eduardo_Espinoza]

That's great point!

[@felixcat9318]

Reading the description was more than enough to convince me that this video is going to be well worth seeing! The collaboration of the two companies you mentioned established beyond doubt that the engine designer and his innovative engine are respected and credible! With all the talk of electric motors taking over the automotive, marine and aeronautical industries, to see innovation in a fuel burning engine is great news, particularly when the innovation offers less mass, less weight and less complexity whilst giving more power output!

[@d4a]

Thank you for reading the description! Very few people do that and I really try to make the description useful.

[@felixcat9318]

@@d4a Your description was superb, detailed, factual and concise, viewers couldn't ask for a more well considered description!

[@fishjohn014]

@@d4a do you think they are using a hinged connecting rod? So when piston is at TDC the rod Is slightly shorter because of its angle. However, when crank is rotated 90°, the connecting rod is straight and effectively longer, thus evening the acceleration difference between the upwards and downwards motions?

[@mrlarrybobjr]

Hi sorry but when I read the same information red flags go up in my head. The two prestigious companies mention are in business to make money. The man behind this engine design I do not know anything about. How much is he paying those companies to work for him? How much money does he have? A go fund me account for a dream engine is just that, a dream engine and go fund me account. So if he is paying these companies to make parts for him run tests make parts run test blueprint design ideas run test make parts buy parts make parts test parts redesign parts make parts by parts test parts make parts test parts make parts. Do you get my drift? Those companies are not working for him for free. So as long as he’s paying they will do anything he requires of them within their boundaries and expertise. Even if they know it’s going to fail if he keeps paying them to test parts they’ll do it. If he pays him to stick there no cam valves in one of his engine blocks and that they help design or a bill or they bill and he’s giving the money yet they will say we are working with this man and testing his stuff. That gives no credibility to a finished working 7 1/2 L four-cylinder. It’s a concept. I hope it works but Star Wars is not real. But Star Trek probably Is real. Because of the prime directive. But if you pay people to break the prime directive they probably will. Follow the money.

[@ACatKrom]

Its nothing more than a scam, with empty claims. They even state that there is no contract with freevalve, on the kickstart

[@CoreyBrass]

For those of you who haven't yet watched the video...it's 18 min until the end when he doesn't know how this engine will change anything.

[@alistairbalistair9596]

thank you for saving me time.. i assumed this was click bait

[@faaaaq]

@@alistairbalistair9596 Corey is false. He explains exactly how it will (rather, could, if it materializes) change things. A large-displacement i4 would be far more efficient than a v6 or v8, in a smaller package. In other words, more power, more MPG, smaller motor. Pretty simple concept, Im sorry Corey could not comprehend it.

[@archiedentone5950]

@@faaaaq tell us how a 4 cylinder would be “more efficient”

[@Deontjie]

Yep. I am NOT subscribing.

[@CoreyBrass]

@@faaaaq what you're not saying is how he doesn't know how they managed to build a larger displacement I4 and fix the secondary imbalances...hence he doesn't know how this will change anything. Its not that I couldn't comprehend, it's more accurate to say that since this video is nothing more then a hear-say video I give it its proper attention and credit. If you Sean Carey care to explain how this company is able to build a large displacement I4 that can also turn high RPMs, then please do.

[@cosmicHalArizona]

When the 4 banger becomes so large it becomes an Offy Indie race motor.

[@skyking9835]

The Offys got up to 4.4 L, ruled Indy for decades and didn't spare the rpms. With the head gasketless monoblock (head & case was one piece of metal) they took a lot of turbo boost. Still, how did they get around the secondary balance problem?

[@saysflushable]

@@skyking9835 as I remember in my youth engine breakdowns were a big reason to drop out of races. It seems to rarely happen now. But I remember in the 1970s announcers talking about saving engines to get to the finish line.

[@skyking9835]

As I remember, Mike, you're right! Although, I don't suppose breathing all that Lotus-Ford exhaust did the Offys much good either. Damn, we're old.

[@Remiilfo6932]

@@skyking9835 there was the Eagle Drake Offy powered Indy car 1972, turbocharged to about 1100hp, huge boost for qualifying...but they ruled Indy. They ran their 500 miles. And the best part is only slide rules and brain matter designed it. And still to this day..nothing sounds as good as an Offy under full load in a turn.

[@michaelpatrick6950]

@@Remiilfo6932 Maybe a Novi? At least before Jim Hurtibise blew them up.

[@briancox2721]

Haven't seen the follow up yet, but I'd speculate the method they use is some sort of eccentric in the connecting rod to allow its functional length to change during the stroke. If you make the rod longer during the first half of the stroke and shorter for the second, the secondary imbalance is eliminated. Also, you can reduce secondary imbalance with a longer connecting rod. The longer rod doesn't change effective length as much for the same stroke. But this has its limits. A longer rod means a larger overall engine package, and I4 automotive engines tend to be used in smaller cars. Also, a longer rod is heavier, limiting RPM. Finally, a longer rod is less stiff, limiting maximum cylinder pressure, and thus torque. The last two together are a one-two combination to engine power.

[@billspangler2685]

I wonder how long it will be before freevalve tech is cheap and reliable? I remember when twin cam I-4 engines with 4valves per cylinder were considered a high-tech power option and often ended up broken, and 30-35 years later they are the world standard.

[@juanordonezgalban2278]

I too think freevalve is the future. Electric drives don't scale well, and there are plenty of aplications where we still need ICEs, so we will see them keep improving

[@af0ulwind115]

wonder how hard it could be to build a pneumatic solenoid and place a timer on it that fires in sync with your piston rotation???

[@David-lr2vi]

@@af0ulwind115 The hard part of Freevalve is making it reliable enough to last the new car warranty period.

[@Buzz-vz2js]

Look up Wesley kagan here on youtube he built his own freevalve style set up for a miata.

[@kevinrusch3627]

@@juanordonezgalban2278 On the other hand, if you had a "plugin hybrid" which was really just an electric car with a range extender, you could make the generator run at optimal load whenever it's running, and only vary it by how long you ran it to charge the batteries. Then, you set a perfect RPM and tune the valves for exactly that speed and resistance, and you've solved the problem using well-refined technology.

[@madsciencebuilds]

I'll believe it when I see it,but make no mistake,they have done something special here.

[@smh9902]

I met Albert Araujo about 5 years ago. I was looking for the original 400 CID bourke engine, and he owns it. At the time he was trying to sell it as a sort of art piece to some millionaire. I know how his engine works. Its a deliberate de-turning of a Bourke engine. They didn't reinvent anything. All they did was make an inferior Bourke engine so that they wouldn't be politically blocked from entering the market. The scotch yoke is what eliminates all the balancing issues. Maximum piston and rod velocity is achieved at 90 degree's to crank angularity, meaning there are no secondary forces. The other side of the yoke is a sort of tailing rod that reciprocates in a bushing. If you want to know more let me know.

[@maxcactus7]

Damn, this was a super exciting video today! I can't wait to see this engine come up life and to market. Terrific explanation as usual, D4A, and great job connecting with the CEO of Alphadan! Keep us updated on the progress of this amazing engine.

[@Dave5843-d9m]

The German company Neander has a diesel outboard engine with two cranks and two rods per piston. The cranks are geared together so run in opposite directions. Internal forces cancel out and cranks get better mechanical advantage from the piston movement. Cranks are built small as each sees just 50% of the torque.

[@ianspeckmaier9565]

That's really cool. Wonder why we don't hear of more engines using that design?

[@Prototheria]

@@ianspeckmaier9565 I was lucky enough to experience on of those first hand. They are jewels of engineering, but at something like 40k each, that's a really, REALLY tough sell on the recreational side of the house.

[@prich0382]

The instant you showed the crowd funding website page, I just laughed, big scam coming in

[@carlosandleon]

definitely a scam

[@catchnkill]

Yes. Definitely a scam. It looks like that the guy read the 7 Marine story. And literally copied everything of 7 Marine's business plan.

[@cannaroe1213]

@@catchnkill But he's partnered with Mahle so presumably someone with glasses has looked at it. IDK. It's probably high-speed hydraulic or something.

[@catchnkill]

@@cannaroe1213 No. Mahle provides contract engineering. You pay them money and they will do whatever engineering you like. They do not care if it works or not. You ask them to test stupid idea. You lose money and Mahle does not care.

[@catchnkill]

@@cannaroe1213 No. Not partner. Mahle never says that Alfadan is a partner. Don't let cunning wording fool you

[@Rampart.X]

I independently conceived the same 'connecting' mechanism for my own Stirling engine project. The reason was not to address balance issues but to eliminate asymmetric wear on the piston and cylinder as well as accommodating a unique piston assembly.

[@Rampart.X]

@Donovan Piko - why? You can google images of their engine

[@archiedentone5950]

Yes that is the prime benefit. The reduction in secondary imbalance is not at all as presented in this video

[@vladdutz20]

Gm's L3B 2.7 4 cyl dual volute turbo sounds interesting also, not to mention the freevalve system which can function in every type of cycle, diesel, gas, vvt, vvl, 2 stroke , 4 stroke, otto , atkinson. The freevalve is the most important milestone achieved in the history of the internal combustion engine

[@TopiasSalakka]

I hope there's gonna be Freevalve kits for older engines, would be cool to see how much power and fuel economy you can get from like a small block chevy or even a Mazda B-series.

[@maybelive765]

I dont trust it though. Im scared that the wear can really be hard to handle.

[@aidennaerion4576]

you sure freevalve will work on 2 strokes?

[@NoorquackerInd]

I wouldn't say freevalve is the most important milestone, I think it's about as important as EFI (or fuel injection in general)

[@maybelive765]

@@aidennaerion4576 hypothetically, it should. But you actually need a 2-stroke block, cyl heads... etc. which no modern car manu wants to make that shit lol

[@BenzinioB]

Dude... I have consider myself a car-guy until today! You rove people never stop learning! And today is not a lost day for me! Thanks!

[@KTMsteve]

Wow this is the best explanation I’ve ever heard in 20 years of being in automotive. Thanks !

[@Showmetheevidence-]

Man this is quite a claim, and if they get it right… a huge step for the ICE. At a time that ev’s are growing massively this will be interesting :)

[@mikezerker6925]

Excellent video!! You do a great job explaining concepts with diagrams and visuals. You're much better at teaching (and keeping the content interesting) than most of my college professors!!

[@mixxeerr]

It’s been two years since this video published. Any updates on this engine?

[@oinka720]

Neo: "I know what you're trying to do." Morpheus: "I'm trying to free your valves. And then your rods."

[@themadmachinist8637]

sounds kinky

[@marian-gabriel9518]

Free your vaaaalves...and the rods will follow!

[@zefzone-215]

Then that stoic little boy shows up during prototyping: "It's not your mind that bends, but your valves!"

[@030233854914]

🤣

[@caryfowler5999]

@@marian-gabriel9518 they will but not where you want them to 👀

[@AmandaHugenkiss2915]

I recall when the inventor of the Segway was telling us how it would revolutionize transportation. I think they only people using them are mall cops.

[@surfside75]

And after he said that the inventor literally rode his Segway off a mountain.. accidentally.

It killed him. Revolutions? No thanks.

[@Where_is_Waldo]

@@surfside75 Ha! I did not know that. I always thought those thing were stupid

[@peterweller8583]

And multi millionars

[@LuisMartinez-bw5vt]

As a Democrat why

[@SupraSav]

IIIIIT'S SUNDAY! Every evo owner is googling these connecting rods right now.

[@cafe88racer53]

7.5l prob the rear wheels will lift off the pavement lol

[@nimeshjoshi1341]

You elaborate everything in a very lucid method. Simply great 👍👍👍

[@donwa9851]

The connecting rod moves like a pendulum. The fact that it goes up and down is immaterial. Great explanation of secondary balance!

[@DocWolph]

So the fix would be to keep the Con Rod from swaying like a Pendulum. I think (I find myself thinking I dreamed it) I have seen this in concept engines animations before. The only lateral movement by the Con Rod is handled at the Crankshaft. Exactly how, I would like to see.

[@bobbym6130]

What I don't understand is why the top and bottom don't even out? Why wouldn't any acceleration difference at the top equal the same difference at the bottom? It's a circle.

[@brainstorm4207]

@@bobbym6130 just like the video says. its the geometry of the connecting rod.

[@rwryder1]

@BrainStorm4207 whenever you pull sideways your gonna gain distance!!

[@kefwals8722]

@@bobbym6130 the center of gravity isn't a circle. It's an egg shape. If you look at the perpetual motion design of a bicycle wheel with bottles attached partially filled with water. THey don't work for the same reason. The water in the bottle shifts making one side heavier than the other and doing the same thing shifting the center of gravity away from the center of the wheel.

[@Stale_Mahoney]

my 3.1L build chuckles "i'm in danger"

[@adamryd95]

Haha 😂

[@madsfilholm7366]

It is rare to see B230s make decent power with high displacement cranks, your liner wear out and you enormous wall force from the sharp angle the connecting rod have when running on big displacement cranks. I would never go past 2,5 liters and if you want to rev it high, then i would go with a 2,3 liter setup. Bigger turbo is a way better method to get easy power from these engines.

[@Stale_Mahoney]

@@madsfilholm7366 yeah but it's a NA build 16V going for torque and drivability, it's more of a test street engine build. may not be the smartest but it will be interesting

[@beaus3472]

This must be one hell of a development...and I have my doubts.

[@jeromewink557]

Agree. Many doubts. Honda makes some awesome 4 cylinders and they rev like crazy. If there was a “better” way they would have worked on it.

[@smh9902]

I've spoken with Mr. Alfadon before they ever created a company. They solved the balance issue using a scotch yoke from a Bourke engine.

[@calthorp]

@@smh9902 would end up with more friction & short overhaul intervals

[@smh9902]

@@calthorp Well, their specific design, yes, but scotch yokes can be designed in ways that have relatively low friction. But this particular design is NOT that.

[@robertperez8619]

@@smh9902 What the shit just happened? I would love to see the torque. This I4 has to sound like a diesel.

[@downunderdan5132]

I think the Beast of Turin and the Blitzen Benz deserve honourable mention of large displacement inline 4’s hehe 😋 tongue in cheek of course as neither was mass produced. And we have all seen how smoothly the Beast of Turin runs 😅 Fantastic work Mark - I love the content and your way of explaining these principles 😎

[@peterduxbury927]

I love looking at the Beast of Turin. But (no matter what I'm told), when performance goes up - reliability comes down. Every engine ever built always has its' limitations.

[@brainfleming8756]

Finally, I understand secondary imbalance. Thanks so much.

[@Luquetupapa]

Came here to say that, thanks

[@boxr_4214]

i for one will be incredibly impressed if this ends up living up to the hype that alfadan is giving it. that kind of power is already impressive for a naturally aspirated engine, even when considering the displacement. crazy that they managed to get a four-cylinder to do that, AND at a 5500 rpm constant speed.

[@superphonixlp4152]

Well it aint got that many horsepower, but 5500 RPM is no problem for my 190e (1991) from Mercedes. It drives at consitent 190 km/h at that RPM Rate and about 180 km/h at 5000 RPM. 🤷🏼

[@superphonixlp4152]

It’s an Inline 4 too.

[@Hangar-zu8xg]

it wont. theres very few boats where a 600hp engine is applicable. They either do not need that much power, or if they do, it would be far easier to have an inboard diesel.

[@tamaninesauc]

650hp from an na 7.5l at 5500 rpm is out of this world…

[@Hangar-zu8xg]

@@tamaninesauc there is very little application for this in the marine world. Basically racing and large boats (38'+) that use 4 outboards which is rare

[@Froge69]

This looks incredible however I am still skeptical but if it really is this good then I will be amazed. Great video hoep there is more news soon,

[@ronaldcolman6211]

Here's the patent number there are images of the design, US10378578B1

[@jake7503]

Beat me to it, Ronald. The pictures look pretty cool.

[@802Garage]

@@ronaldcolman6211 Very cool! I do wonder how beefy those components will have to be to hold up and if they can possibly handle the friction with flat sliding surfaces like that. I have designed several engines in my head and the issues I usually encounter involve too many friction surfaces or too much frictional area. That, or the need for some form of roller bearing or cam follower which will see far too much force.

[@steen8156]

The us patent office is full of non practicality. I know a guy named Omar who has three; non of which are in the least bit useful. Scamstarter written all over this one.

[@Froge69]

@@802Garage hopefully we can see a working engine within a couple of years to truly see how it works and if it lives up to the claims.

[@caty863]

For boat applications, I'd think i6 would be the best engine configuration since there's no space constraint there. Why do boat designers insist on the flawed i4 instead?

[@Eduardo_Espinoza]

IT would be too tall?

[@theyeetus1428]

This is an OUTBOARD boat motor.

[@nebeladem1239]

fuck it 2jz boat

[@Hangar-zu8xg]

They dont. thats why a huge amount of boats are still using GM v8s

[@acars9999]

Mercury made i6 engines way back in the day. I think the ranged from ~100-160HP. They were sweet engines. So smooth, for a 2cycle outboard. Then the Black Max v6's and V8's came out and took over. The

[@bradmiller9993]

I want this engine in the back seat of my Honda.

[@134StormShadow]

Sod that, I want one in my 'bike 🏍

[@rustywater3219]

Yes, domestics will also.

[@nighthowler8107]

ovcourse you do

[@desimation]

Add a k04 turbo and E85 tune with balanced and forged internals for a daily that roasts and coasts, sips and gulps.

[@RyanMcIntyre]

Fonda ain't got a motor in the back of her Honda.

[@DiHandley]

I’d love you to do an article on a “Liquid Piston” rotary engine.

[@farhenheit628of1200]

Agreed Peanut 🥜 inside of the dorito

[@2strokecarbtuningportingin187]

Seen the liquid piston few years ago it don' make that much power it's a rotory. That motors gone no where's

[@DL101ca]

@@2strokecarbtuningportingin187 going nowhere, means it's here to stay...

[@danielnelson4881]

@@DL101ca This is true. However *gone* nowhere, like our friend has written here in his comment, implies that the rotary is still living in its mom's basement because it's gone nowhere fast. Probably bad apex seals, car wouldn't start so it couldn't go anywhere if it wanted! Haha.

[@HoosierDaddy_]

Those are some big claims. I'm very interested to see where this goes.

[@xXturbo86Xx]

Nowhere. Big claims are always big lies.

[@HoosierDaddy_]

@@xXturbo86Xx * most likely you're right!

[@SophiaAphrodite]

@@xXturbo86Xx Koenigsegg has a 2.0 3 cylinder twin turbo that makes 600 hp. So I doubt it is a lie.

[@TBasianeyes]

@@SophiaAphrodite But this engine is NA, we have been able to make 1000hp on boosted i4s for decades.

[@bertiewooster3326]

Er nowhere

[@jesterokjones4954]

Lmmfao@the way he whispered "on the channel" very excitedly right in the middle of a sentence that was normal volume at the be beginning and end respectively! All jokes aside, what a great presentation for people new to engine works and just tech period. Clear and concise, bravo, mate!

[@jbj27406]

Your discussion of primary and secondary balance was comprehensive, methodical, and very illuminating. Well done. Just as was the case with your use of "f=ma" that showed that the only variable factor was acceleration, the only way I can imagine they can eliminate secondary balance issues must lie in the connecting rod itself. I can only picture this being achieved with some form of dynamic variable length connecting rod. Should be very interesting to see how they plan to achieve this. Thank you. Please keep us posted. Subscribing now.

[@ETOP911]

Great job breaking down these concepts, I learned something new today, thank you 🙏

[@maratbabayan9332]

Great video, perfect explanation! But going back to the theme - it's tremendously interesting what they really did if they really did anything at all. There're lotta scammers around us like Nikola, Theranos, and so on who claimed they'd invented "the new more efficient wheel" but actually did nothing at all. And they had big names like GM behind them too... I don't want to make allegations - maybe they're really game-changers, who knows. Let's see, only time will tell the truth.

[@jaredgrow]

You hit the nail on the head. These guys are total scammers and have never created anything but drawings to entice investors who get nothing in return. You can go to their website and read their investor disclosures which is disturbing. You get fake shares with no value or voting rights and you basically agree to lose your investment right away.

[@barry7608]

Thanks you just invented the complete Engineering course in a single video ! Sounds great if it can happen. I’m off trying to redesign a con rod!

[@wingracer1614]

You: "I4s have a limited displacement" Beast of Turin: "Hold my beer"

[@NovejSpeed3]

This comment needs to be pinned!

[@TheAllMightyGodofCod]

The difference in displacement is so enormous that I think the beast of Turin would be like "nah.... I won't even bother with such a little Alfadan engine"

[@davezorc]

@@NovejSpeed3 Except he also did say large, low RPM inline 4s exist.

[@bensmith4563]

That the race car with the 20 something litre 4 banger

[@flyonbyya]

I’m imagining that this con rod is mounted on a eccentric journal of sorts to match accel/decel

[@Backstretch1]

It's a basic scotch yoke design. This company doesn't intend to build engines. They intend to soak up venture capital money using a design from the 1800s.

[@josephschnabel1andonly]

And like a slotted cog

[@chasethompson7392]

@@Backstretch1 scotch yoke isnt in-line though

[@dynamodbld4814]

Industrial Engines have had articulated connecting rods for years. Some Aircraft engines use them also.

[@jackrichards1863]

Can't be that then. It could be hydraulic displacement ? Then there would be no need for a rod. Only journals and a sealing component providing transfer of motion.

[@yeliabnoj]

I imagine a split rod with an eccentric. Is this like articulated you speak of?

[@nunyabizness6734]

It's a curved connecting rod in combination with a the free air valves that open well before BDC to relieve the strain on the rod at its weakest point. You're essentially short changing the power stroke, so instead of getting power through 150-160 degrees of rotation, you're only getting it through 110-120 degrees. The free air valves would also allow you to have more traditional valve timing at lower engine RPM where the stresses on the connecting rods aren't as great. That would be my guess.

[@haphazard1342]

How does a static, curved connecting rod change anything?

[@MatMabee]

@@jackrichards1863 All fluids compress far too easily the mimick the performance of a metallic pushrod. I may be wrong but if you could transfer that energy efficiently adding seal components would drastically decrease the designs reliability compared to it's solid counterpart.

[@danmihai3002]

i vote this guy the best educator on youtube.

[@gregeconomeier1476]

It will be interesting to see how the connecting rod/crankshaft journal assembly works under load over time. There appear to be a lot of forces interacting in the assembly. It will also be interesting to see how the piston wall interacts with the above mentioned assembly under load over time. It will also be interesting to see how the piston/cylinder seals considering the guide slot needed for the rod/crankshaft journal assembly

[@tonysuda9066]

Im guessing because they mentioned revalve and are probably using camless engines that they have done away with some part of the rod... maybe just maybe the rod is somehow timed better so its de accelaration is able to be controlled

[@Baribrotzer]

Where do they show the design?

[@tonysuda9066]

@@Baribrotzer they dont There are clues such as the need to cancel out the vibration So the solution is there somewhere Partnered with mahle.. they made some revolutionary piston

[@richardwadd9769]

I can’t help thinking about the dentist on Django Unchained while I’m listening to this guy. Fantastic accent for explaining technical matters.

[@fransmith8992]

you're right. close your eyes and it's him. it's not just the german accent, but the manner that he speaks. it's the same.

[@richardwadd9769]

@@fransmith8992 yeah, right. It’s the whole thing. I love the dentist’s way of talking. I think his name is Schwartz. And he was in a Bond film, of course.

[@fransmith8992]

@@richardwadd9769 that was a bond film i never saw. what was the title?

[@richardwadd9769]

@@fransmith8992 it’s Austrian actor Christopher Waltz. He was in No Time to Die.

[@fransmith8992]

@@richardwadd9769 if he is australian, where did he get that accent?

[@970357ers]

From what I've found online, the design relies on a scotch yoke at the bottom of the con rod (moving only up/down). Each journal has a secondary block which moves (only side/side) within the yoke.

[@slohachi6433]

That's exactly what I thought also. A sinusoidal engine.

[@walterkersting6238]

Does it hav axial orientated marzal veins?

[@shawnoneil2046]

970357ers Where can i please see this? I can't see this picture in my mind.

[@signkutter9218]

@@walterkersting6238 I believe you were alluding to the baseplate of prefamulated Amulite, surmounted by a malleable logarithmic casing in such a way that the two spurving bearings were in a direct line with the panametric fan, consisting simply of six hydrocoptic marzel vanes so-fitted to the ambifacient lunar wane shaft that side fumbling was effectively prevented.

[@970357ers]

@@signkutter9218 What about the nonreversible tremmie pipe?

[@MrQuasar1958]

This was fascinating, to the point , succinct, and I learnt something !! This guy should have his own TV show. Brilliantly explained !!😅

[@96blackjacket]

If they this works I’d love to see their con rod tech available for the after market and other manufactures so we can have lots of better balanced engines…cause I love my v6s 😁

[@smh9902]

I've spoken with Mr. Alfadon before they ever created a company. They solved the balance issue using a scotch yoke from a Bourke engine. You wont be able to modify older engines to be a scotch yoke engine.

[@gravityskeptic8697]

Skip to 15:32, so you can see that this video is just a sales presentation, without any explanation of how this principle works. Which is highly suspicious btw: They collected 1Mln on Kickstarter without explaining how their revolutionary new technology works.

[@jeronimomurruni]

Well to be honest, " They collected 1Bln on Kickstarter without explaining how their revolutionary new technology works" describes pretty much most Kickstarter campaigns.

[@alfadanhighperformanceoutb8416]

Gravity, this is no sales presentation and was made by D4A exactly as stated. As much as I would love to show everyone how it works, we simply can't at this point. We need to protect our current pending patents and need to keep certain things proprietary till we launch. Companies like TESLA have millions of investors yet never once have I seen them divulge in detail how they do absolutely everything. Although we are not TESLA, we are a small public company and have restrictions and guidelines we must adhere to.

[@S50Sinner]

@@alfadanhighperformanceoutb8416 Honestly, you sound a lot more honest than Tesla, they keep brushing issues under the rug to save face, meanwhile you've said all you can, and with Mahle, that's a whole lot of credibility. I can't wait for your patents to be approved so I can learn how this engine works, it'll be an exciting day when that happens.

[@alfadanhighperformanceoutb8416]

@@S50Sinner Thanks for the kind words.

[@gravityskeptic8697]

@@alfadanhighperformanceoutb8416 If you have an idea that sounds too good to be true, you should be able to explain how it works. Otherwise you should wait until you have proper protection in place through patents.

[@StephenAgneta]

Outstanding explanation of secondary forces. 👏

[@rossgebert9422]

The way you present your videos is ENGAGING, INFORMATIVE and ADDICTIVE. (and I also love the hand gesturing, he he!). Thank-you. GRAPHICS are GREAT.

[@skildude]

I've got to imagine that the Rods are off center alternating between the pistons with counter weights on the opposite side of the rods. This would replace the additional balancing parts required in old motors.

[@danielkruger4305]

I think you are right.

[@papapetad]

"the skid factory" mentioned the subaru ez36 flat six uses some sort of offset rods when they built supergramps. I haven't looked closely at the design but I imagine it's what you're thinking.

[@skildude]

@@papapetad I think they may also offset the cylinder so that the stroke is as close to 50/50 on the compression.

[@LitchKB]

I was today years old when I learned what secondary inbalance really is.

[@Looknobook]

Hahaha

[@archiedentone5950]

But despite what is claimed in the video the imbalance is still present

[@alanploetz7100]

Until now, I always thought it had more to do with throwing the weight of the crank/lower rod perpendicular to the trave of the pistons, not the distance of the piston travel.🤔

[@vikeskie]

Archie Dentone obviously, you can’t realistically completely negate it or the engine would be perfectly balanced.. and if you actually listened to what he told us in the video you would understand it. but you didn’t.

[@archiedentone5950]

@@vikeskie I kind of stopped paying him much heed when he stated that the mass of the piston doesn’t change with velocity lol. And that is not in any way the limiting factor as to size of and engine configuration so the point is rather moot no? It is creating a straw man that doesn’t exist

[@The_Original_Default_Username]

"If it sounds too good to be true, it probably is."

[@RENO_K]

I mean Mahle and Freevalve?

[@ACatKrom]

@@RENO_K Freevalve currently has nothing to do with this project.. their page says " ALFADAN plans to contract FREEVALVE"

[@The_Original_Default_Username]

@@RENO_K A million dollars isn't anywhere close to the startup capital you'd need to design, manufacturer and market a viable engine of any kind

[@exothermal.sprocket]

"If it sounds........" Focus on that part. Perception (the sounds part) of something can be just as flawed as the reality of something because perception is often based in the limitations of things rather than the possibilities.

[@nicklacerte7134]

Yeah I sense a Nikola scam here

[@kidsteach938]

It is not the con rod that needs changing to smooth the engine, but the wrist pin, which needs to not only slightly rotate, (which they all already do), but the wrist pin needs a slight offset equal to the different angularity of the con rod when it assumes the hypotenuse position, and "shortens" the stroke.

[@artysanmobile]

Of course that ‘slight offset’ will need to change direction twice per crank rotation. Therein lies the problem.

[@Erik_Swiger]

I imagine the new connecting rod uses hydraulic pressure, in a manner similar to hydraulic valve lifters, to alter the connecting rod's length during the crankshaft's rotation.

[@ickster9709]

It's always a little hard to reconcile claims of patented technology with claims that the technology has to be kept secret. There's a bit of wiggle room in those two competing claims, but it's always suspicious.

[@v0idlike]

My thoughts exactly. Maybe patent-applied.

[@cr4zyj4ck]

Maybe we should pull the patents, if they exist?

[@beaus3472]

This. Explains the tingling in my spidey sense.

[@smh9902]

I've spoken with Mr. Alfadon before they ever created a company. They solved the balance issue using a scotch yoke from a Bourke engine. He wont be able to patent jack shit. Its 100 year old technology.

[@nickopedia5669]

Here's the patent. www.freepatentsonline.com/20200018346.pdf As Brian Delta V stated, it's a scotch yoke engine with all the same problems that have plagued scotch yokes for over a hundred years. The question is whether Mahle was able to solve those bearing issues. The unique contribution from alfadan is putting yoke support bearings on the side of the yoke so you can package it as an I4 rather than an H-pattern engine.

[@SarcastSempervirens]

this channel just keeps delivering and with a normal, literate person able to clearly explain things. it's a fucking miracle.

[@117johnpar]

What an amazing channel to explain and demystify something that I couldn't get a clear answer from veteran mechanics in a way thats dead stupid simple.

[@carlob517]

I'd like to know when there's going to be an IPO for Alfadan

[@Neudezign]

Please keep us up to date with any information you can about this, this really does sound incredibly interesting and has definitely sparked my imagination. Looking forward to learning more.

[@Stevie671]

Have to wonder what the torque curve would be on 7.5 litres spooling up to 5500 rpm. Can't wait to see the propellor.

[@Astraeus..]

There's a fairly obvious (if a touch expensive) solution to the inherent issues of an i4, and that is......a v4 (at 90 degrees). Now clearly a v4 is more complex and expensive (2x the heads, valvetrain, camshafts, exhaust manifolds, etc) but those don't directly cost 2x as much as the i4 parts as they're considerably shorter. Overall component cost might be +20-30% (I highly doubt more than that). A 90 degree angle, half-length crank and cams (vs i4), and shorter stiffer block mean not only is the overall amount of secondary vibration reduced but the engine itself is more easily capable of balancing forces on both sides. So realistically your engine footprint is overall the same (though obviously shorter and wider) weight may increase slightly, though not enough to really matter, and balance is as good as it gets. All in all v4's are extremely capable and (realistically) could probably be produced for 20% or less than the production cost of i4's, meaning auto-makers likely just don't do it because it's not worthwhile to them long term. An i4's inherent problems aren't so great that they'll actually BE a problem within the warranty period of a new vehicle, beyond which point most companies really just don't give 2 shits. In fact a more stable, reliable engine that's more capable and can last a longer time probably isn't a "wise" business move, as it would potentially lead to people hanging on to older vehicles rather than going to get something new.....

[@micgalovic]

They should have just LS swapped their boats xd JK, this seems like a great thing, very interesting

[@brianreiff8101]

Seven marine was selling ls outboard engines but they just went out of business.

[@juanordonezgalban2278]

LS swaped boats are a thing. I love americans

[@williambacon6829]

@@brianreiff8101 ñk9o P

[@hellslayer9638]

LS is not the solution for everything . and not everyone is so engine savvy 😂😂 but for race engines LS is the only choice 😀 suoer and turbo both in same engine

[@geniferteal4178]

Who would B dumb enough to BUILD an LS powered boat?

[@anonymouse2888]

Bravo, my friend. That was an excellent presentation! Clear and concise with 0 fat on the meat. Subbed!

[@thoward0]

Best guess is some evolution of a Scotch Yoke connecting rod or maybe even some hydrostatic solution. Can't wait to see what they did. Edit: found comment with link to patent. Scotch Yoke it is! Cool!

[@personaldronerepair6141]

Good find! Very impressive engine design. The salty old dude in me is curious to see how long these engines last. 7.5 liters is not hurting for displacement. Slugs that size are punishing the new rod design at 5500 rpm. Gotta admit, I do hope to see a lot of these in the wild in the near future. I wonder what they sound like at full chat.

[@youtubuzr]

Very interesting vapor-ware engine! I too hope it becomes a reality.

[@wago1718]

Excellent news! Hopefully this engine meets the car industrys’ reliability standards and we see rhem in mass production vehicles, with the associated operating expenses as low as you say they would be. Though, knowing the car industrys’ lust for money, instead of bringing in tech for the sake of their customers benefit, they would just do it at first at an enormous cost making the efficiency of the engine lackluster in comparison

[@appcarpenter1]

Pending on weight of engine, this looks like a stand in for experimental general aviation motors, especially with how compact it is.