Nutating Disk Air Engine - Why's Nobody Making This Yet?

[@richardburge2791]

A seemingly minor, but important distinction to all the budding engineers out there: the device shown here is a type of turbine, NOT an engine. The distinction being that an engine converts a different type of energy (thermal, chemical, potential, etc.) into mechanical energy. A turbine extracts the (already mechanical) energy in a fluid stream and turns it into work.

[@jck7986]

Im not an engineer but my first thought was: How is this more efficient than blades in a turbine? Considering this design never took off (I think), I assume it’s not.

[@bl4cksp1d3r]

​@@jck7986 I suppose it sacrifices efficency for simplicity

[@NovaExxi]

​@@bl4cksp1d3rI mean... There is something called a Disk turbine. A type of blade-less turbine made out of metal disks that is extremely efficient and can give you way better results than a blade turbine... The only reason it doesn't get used is because it has a tendency to tear itself apart due to how powerful it is

[@user-uh6kq2wh9g]

@@bl4cksp1d3r I don't think its even simple as most other types of turbine has less moving parts

[@CB19087]

What if he plans on introducing fuel? 2 stroke...

[@acreery1]

There are two more seals that would also improve performance. The disk to wedge seal and the wedge to sphere seal. Without these seals, the engine is simply relying on air velocity to wobble the disk rather than a volume change caused by pressure.

[@derpinbird1180]

The friction would destroy the plastic

[@acreery1]

@@derpinbird1180 there already exists 2 other rubber seals. Why should the two I suggest be made from plastic? Are you suggesting not sealing these regions?

[@d3str0i3r]

@@acreery1 i think they mean the plastic of the casing/disc, not the plastic of the seals

[@lamp1263]

Maybe increasing the area of the outer part of the disc would increase the power of your engine .

[@glenmcgillivray4707]

The workaround is to add a pair of channels around the edges that vent to each side. The idea is to use friction of air rushing into the channels to keep the pressure within moderate, lowering the pressure difference between the cylinder and the channel itself, slowing the rate of air flow due to lowering the energy barrier. But the question is, is an air trap more efficient in terms of flow reduction than a single thick edge? My mind says air traps should 'insulate' the pressure flow better. I'm not certain if this logic will match reality.

[@5hort3]

A true proof of concept. A device that converts moving air into moving air!

[@orion1816]

I'm pretty sure if he just cuts the engine out and just lets the air flow out of the tube it's 100% efficiency with regards to moving air. (Which I believe is why he's using the propeller, correct?)

[@GewelReal]

​@@orion1816propeller works like a gearbox as he needs more torque

[@orion1816]

@@GewelReal you dont understand. The airflow he is using as power input will ultimately be the exact same airflow out as the propeller pushes. the system is useless.

[@GewelReal]

@@orion1816 no, YOU don't understand. air out of hose may produce a lot of thrust, but it's not optimised for lifting something heavy. It will work way worse than a propeller unless your goal would be speed (it may not take off the ground as well as a propeller if at all)

[@BritishEngineer]

That’s a fan.

[@fluxx1]

Tom Stanton might be interested in testing this design, I'm sure you know he made several compressed air engines for 2l bottle airplanes.

[@cancelhandles]

This also creates rotation directly instead of reciprocal motion, that's a big deal for efficiency

[@samuelrilling]

While watching the video i abolutely thought the same, right up @TomStantonEngineering 's alley, hope he sees this and someday makes something cool out of it.

[@thomaskletzl6493]

isnt that just a worse version of the vane engine?

[@1islam1]

​@@cancelhandles⚠️ God has said in the Quran: 🔵 { O mankind, worship your Lord, who created you and those before you, that you may become righteous - ( 2:21 ) 🔴 [He] who made for you the earth a bed [spread out] and the sky a ceiling and sent down from the sky, rain and brought forth thereby fruits as provision for you. So do not attribute to Allah equals while you know [that there is nothing similar to Him]. ( 2:22 ) 🔵 And if you are in doubt about what We have sent down upon Our Servant [Muhammad], then produce a surah the like thereof and call upon your witnesses other than Allah, if you should be truthful. ( 2:23 ) 🔴 But if you do not - and you will never be able to - then fear the Fire, whose fuel is men and stones, prepared for the disbelievers.( 2:24 ) 🔵 And give good tidings to those who believe and do righteous deeds that they will have gardens [in Paradise] beneath which rivers flow. Whenever they are provided with a provision of fruit therefrom, they will say, "This is what we were provided with before." And it is given to them in likeness. And they will have therein purified spouses, and they will abide therein eternally. ( 2:25 ) ⚠️ Quran

[@Gebox68]

​@@thomaskletzl6493I'd say yes.

[@justcraziii]

I learned about nutating valves as a Power Engineer (boiler operator), they’re used for flow meters.

[@patrickshaw8595]

As far as I know EVERY natural gas and gasoline vending pump uses "nutating disk" flow sensors.

[@ianmcgowan8977]

My Instrument lecturer invented/patented a nutating disk flowmeter, won the Queens award for it I believe, Mr Bob Drinkell.

[@recoilrob324]

That makes a lot of sense. Trying to use this design to actually power something is going to run into the fact that the mechanical leverage the air has on the disc is very low...so useful power output is going to be minimal.

[@porcorosso4330]

Make sense as a sensor. Since the volume can be relatively easily determined. As an engine, however, I am not so sure... I am thinking just surface drag is probably enough to make the rod spin efficiently without the z shaft...

[@guildersleves]

Most home water meters use this principle as well.

[@micahfoley9572]

Petition to call it the wonkle engine

[@hotandsweaty6057]

Nah, the willy wonka engine.

[@micahfoley9572]

@@hotandsweaty6057 sounds like a fine compromise

[@ernstgross5852]

Wankel Motor?!?

[@Flesh_Wizard]

Wankin engine

[@mr_cleavers_monsters]

You win the internet today!

[@alexandrkuzmichenko8223]

Dude, your idea with this engine is great. But follow the safety rules, don't stand in the plane of the propeller's rotation - it's dangerous! The printed part can break, and the blades can fly into your body.

[@LimabeanStudios]

For real! I was putting my safety squints on just watching lol

[@EnlightenedSavage]

He knows. Let him do what he wants.

[@Argosh]

That's a carbon prop made for pushing a couple hundred watts of power into air. This motor can't even turn it hard enough to get the air flowing correctly.

[@mattw7949]

That's not necessary with the proper application of a safety squint and a sphincter-operated E-stop.

[@skmgeek]

​@@mattw7949this is my new favourite comment ever

[@Fordi]

Heyyy... That's awesome! There's a super-common use case for that structure: the nutating disc flowmeter; we used them in the Navy. Really cool to see it in a novel application.

[@notspacecult6159]

This design is used in the every day water meters outside most houses!

[@Axel_Andersen]

Most inventors would do well to do their homework on existing technology before re-inveting the wheel.

[@billparker8954]

Gasoline pumps too.

[@Axel_Andersen]

@@billparker8954 I guess that is the real life use case for this: metering liquids.

[@Practical_PLC_Tips]

Hydraulic pumps and motors aswell

[@faraday9234]

So, 3 ways to make this more efficient. First we have to understand the high torque low speed nature of this engine. It runs at exceptionally low pressure and doesn't go very fast. The first way to increase the efficiency would be to further stabilize the rod, as this will reduce friction. It was a tad wobbly. The second way to increase efficiency would be to add a gear ratio to the propeller making the propeller spin between 1-2.5 times per rotation of the engine. This would add friction but help the engine convert torque to propeller speed. The third way to increase efficiency would be to reduce the total number of gaskets used and make a more solid chassis around the disk, and reduce the size of the sphere in the middle. Using an interlocking chassis you can make a more definite tolerance, and use less gaskets. Reducing the size of the sphere would increase the total surface area of the piston without sacrificing too much volume or adding total size. I'm sure there is a 'too small' though as you could lose compression. You could also experiment with changing the edge of the disk only around the area of the intake or outtake, as well as getting rid of the gap around the fin that interlocks with the disk and chassis to reduce bleed from one chamber to the next. The disk tilts so maybe use a parabolic shape. This point goes in tandem with @acreery1 comment.

[@sorinavila5073]

How different is your commentary from "COOL, Dude" standard responses I smell 150 minimum IQ Yes we can recognize each other my fellow even at a distance Though the feeling of loneliness is there, you are not, it's just because we are so few and separated

[@faraday9234]

@@sorinavila5073 Apart from barely understanding what you're trying to say or whether or not this is sarcasm, sure! Thanks, you too man.

[@FreeXsa]

I have an even better way to increase efficiency and power. Make a rotary vane motor.

[@hiccupwarrior89]

@@sorinavila5073 r/iamverysmart

[@sigmamale4147]

@@sorinavila5073 what on earth are you yapping about

[@jeremybrouillard]

Using moving air to turn a blade so that it can move air. Awesome! (Nice work, great design)

[@ropelli05]

I love the simple principle. So neat. But you were brave to hold the propeller at 4 bars - I just anticipated the wobbly printed plastic shaft of the propeller to snap on you! Gladly - it did not. Nice job.

[@atrumluminarium]

What if the exhaust goes to a second disk that is 90° out of phase? Then you get the exhaust's remaining energy powering a "mini-powe-stroke" in between your current power strokes. Also imagine printing it in metal and running it off steam! 😁😁

[@waynecooper6124]

That's interesting. I'm wondering how this system might operate in an even denser medium, like water. If it was eficient it may find application in smaller scale hydropower systems. Just a thought, since I'm no expert in that field.

[@d3str0i3r]

@@waynecooper6124 you'd probably need at least a little air to keep it from locking up mid stroke, or modify the design slightly so that flow from intake to exhaust is never completely cut off

[@mr.wheels6212]

That would be so cool 😮😮

[@atrumluminarium]

@@waynecooper6124 hmmm... The main differences would be that liquids are incompressible and have higher viscosity. I suspect the lack of compressibility might be an issue cos if there are points in the cycle where both the inlet and outlet are closed water wouldn't be doing work on the "piston" (in this case "wobbly disk"?). The higher viscosity MIGHT be a benefit as adhesion has some effect on a rotary engine at the surface. How much of an effect this actually has I don't know. I thing a best of both worlds would be a supercritical fluid that has both the compressibility and the viscosity.

[@tnb1224]

​@@atrumluminarium dry ice maybe?

[@Searchingforinfo]

It is a nutating disc. This design is used in fluid flow meters.

[@ericlotze7724]

These are neat! Cool to see you make one! Great video as always.

[@porcorosso4330]

It's sponsored content, but those clear parts are pretty impressive.

[@umadbrops4]

That is so impressive by nasa! I would have never thought of something like that! Your replication is also impressive!

[@Sam-l2g]

Nice project! I noticed the propeller shaft is wobbling which means it is under stress

[@ThunderPanzer]

Looks like a significantly less efficient version of a turbine. It's a great demonstration of the real engine, but probably not the best design for an air engine.

[@splob1981]

I came here to say this as well. To me, it looks like the air is just pushing it around rather than the proposed compression operation theory. Still neat though, especially the clear version. Not enough people make clear things

[@arturjogi6054]

A better sealed version, especially one that actually HAS a seal to isolate the two sides of the disk, would work with any air flow rate and pressure, unlike a turbine. In essence this is a piston engine. Just a poorly sealed one, for now.

[@jamescarruthers1967]

This isn't a turbine. Turbines rely on aerodynamic lift over the turbine blades and are tuned to work best at certain speeds. This relies on a trapped volume of air (or it will once it's sealed properly). I think it's a great idea.

[@ThunderPanzer]

@@jamescarruthers1967 You're right. It's less of a traditional turbine and more of a mix between a tesla turbine (also a turbine), a water wheel and a radial compressor run on reverse. I would love to see efficiency/power comparisons with other designs.

[@Kasian02]

​@@arturjogi6054I'd say it's not a piston engine, it's a STEAM engine.

[@shanebonanno5961]

Correct me if I’m wrong but this is how a hydraulic piston pump/motor works, just the pistons act as valves in the hydraulic version.

[@mikelschaaf5286]

Put a ring around the disc like piston rings from any internal combustion engine. That may improve the sealing, Good video I didn't know this tipe of of engine.

[@deepwebcowboy6681]

My man turned Saturn into an engine. GG Bro

[@buttcrack7784]

More accurately a “motor”. Engines convert fuel into motion. Motors convert energy into motion. Compressed air is energy.

[@captivenut4122]

I think this is worth pursuing even further. Seems to have some potential in it. Very nice!

[@hokulanisotelo1254]

Thanks!

[@retsetman9698]

Thank you for the first Super Thanks on the channel!

[@micahfoley9572]

@@retsetman9698 i read that as "edible project files" and got kind of excited for a sec

[@frequencywatchers]

Send Me SOme Money Pls. Im broke And Im Starving

[@jvmiller1995]

@@frequencywatchers Start your own channel and invest some time and money making useless things and they will

[@marknunya3107]

Add an impression into each side of the disc in the shape of your ignition chamber. As the disc goes up and down, this could add to compression and make it more airtight as well. It would take computerized timing to get right, but it’s probably a worthwhile step to try.

[@Tuna_the_shark]

wonder how efficient this engine is 🤔 sounds amazing!

[@zeMasterRuseman]

He's using a 1.5hp air compressor to power it. So it's not efficient at all.

[@steveclarke6257]

Intersting idea- its like a boxer engine but without the seperate crank shaft between the cylinders....but Two points to add- 1: Wear in the cylinder over long term operation- it would be interesting to see how much loss due to friction in the cylinder you generate. 2: Vibration - it would seem that having the axis of the "piston" disk at an angle would generate a fairly significant sideways/rotational vibration; so again something to measure on an efficiency loss

[@shaneriehl223]

Great idea, and really cool execution! Make sure you patent it if you can and haven’t already!

[@VisualPrecisionLtd]

Too late for a Patent - showing it to the world first is a sure fire way of stopping a Patent from happening.

[@shaneriehl223]

@@VisualPrecisionLtd I believe there's a one-year grace period within which you can file a patent, but that expires after that first year. There may be exceptions to that, but that's what I understand to be the case in the U.S.

[@meateaw]

pretty sure he showed the patents that NASA had on this right at the start didnt he?

[@burnz3132]

Another idea for a seal is using a external waste gate style for turbo. They deal with crazy temps and fast movement. It’s a diaphragm essentially.

[@raeStrong]

@7:12 the second valve improved the exhaust pressure and made it spin slightly faster than without the valve. Keeping the pressure high inside the engine.

[@SeanReevesD]

3:49 you can determine the issue by: 1) introducing smoke into the inlet 2) submerging the device in water Either one will show you where failure is occurring. 1 is preferred for devices that should be free of water due to contamination or deterioration. 2 is otherwise preferred because it's more telling.

[@DM-wp9vq]

Maybe channel the air exhaust port downward? That way it would add to the thrust? You could even flow it through a jet or rocket nozzle to create a better rate of energy conservation and get the most out of the exhausted air. Awesome video by the way!!!

[@retsetman9698]

STL files in the description, if you're going to print this project, there's also a little note about the assembly. don't forget to subscribe!!

[@c3N3q]

Here's an idea 👉 Get a coupler for the inlet port, an extra piece of hose and feed the outlet back into the inlet. I think it's an awesome design, and the efficiency could also be improved by putting some texture on the surface of the ball, like small scales.. 🖖

[@khoohockleng1485]

since u r using compressed air as power input - u can also use multiple thin partition disc of vertical axis using air friction to rotate at high speed

[@CardinalTreehouse]

8:20 WOW - You even designed in a quick-detach option for easy cleaning!

[@therealreview777]

Lol bro 😂

[@RavenRaven-se6lr]

Inventors are so much better than bean counters- Keep up the good work 👍

[@ericlotze7724]

Do you have the Files posted anywhere so we can print some of these? (Also iterative design a la the Tom Stranton piston engine)

[@retsetman9698]

You'll be able to find it soon on Thingiverse or in the description of this video

[@tomsparks3259]

Since it is a compressed air powered machine, and there seems to be some issue with friction, an inline oiler filled with an appropriate lubricant might be helpful. Look at SMC's line of inline oilers. SMC's stuff is reasonably priced and of good quality.

[@therockrancher]

8:20 pinnacle of human engineering

[@popebobcat3716]

I have been trying to find someone to model this engine idea. Imagine a gear wrapped in a shroud. Each tooth drives a pocket of air. Now reduce that gear to just two long teeth (two for balance). Add a second gear to work against this first gear like a worm gear. The two gears will not drive each other. We will need to link them to keep them spinning in synch. While spinning, one tooth drives the air against the side of the tooth of the other gear. Then they trade places as the teeth pass one another. One last thing is to flip one of the gears inside out and make it slightly bigger to avoid the teeth clashing at the opposite end. This should reduce the air leakage due to the curvature of the gears. Use a separate shaft to keep the two spinning in a one-to-one ratio and you should have a neat engine with 4 distinct strokes. Two expansion and two compression. Also, all torque is applied tangentially to the axis giving excellent performance.

[@mahdiebrahimzadeh6581]

nice job man. thanks for video. i think better to use air sealings instead of rubber gaskets. also you can make another sealing in edge of ufo shape. make its edge like a grave for air also make some holes in ufo up and down sides to guid air from out of ufo to its inside and then through air channels to air grave in ufo edge. this way a small portion of air will guide to edge of ufo and will restrict air flow from edge of ufo up or down. this way you can increase distance between ufo edge and cylinder. same you can do for rubber gasket with replacing by air sealing.

[@christmassnow3465]

This closely resembles a peristaltic motion of the air volume as it turns in one direction. Another example worth trying is the rolling piston engine. I think you will find it easier to make it more airtight.

[@stefanguiton]

Excellent work

[@retsetman9698]

Thanks man

[@LivingAwake]

More of a pump or a mechanical vibration device. Manufacturing has been using this to help solids flow in a silo by bolting these to the outside.

[@nictrem]

Are you trying to compete with Tom Stanton?

[@havenbastion]

ceiling fan option - converts most of the pressure to blade rotation but any that escapes is routed to blow between the blades

[@gcewing]

In the position shown at 1:48, what stops air from simply blowing all the way around the top of the disk and straight out of the output port?

[@daytonshuflita2201]

It would, but only a small amount probably. No engine is 100% efficient

[@daltager]

Только компьютерное моделирование

[@AlexthunderGnum]

Great idea! Somehow you need to overcome the need for the initial push that starts the motion. For a real life application, the need for the initial kick to start it would be a show-stopper.

[@generic_programmer]

Why? Any petrol engine today is kickstarted by an electric starter motor

[@AlexthunderGnum]

@@generic_programmer I don't have to kick-start the motor on my motorized screw driver each time I want to use it.

[@meateaw]

this particular turbine is most likely for use in a hobby sized compressed air plane. a manual rotation is actually a design feature (to let you hold it before launch, and choose when to initiate launch)

[@generalfishcake]

Plz use the wobbling motor to make a Wobot

[@66sri]

Excellent POC !!! With few adjustments let’s hope it can generate more power with lesser pressure !

[@NiksSofa]

good thing you manage to publish the video before No-Nut(ating)-November.

[@josephgauthier5018]

Na man, it's non-stop nutating November 😂

[@martynridley3671]

I noticed in the slo-mo how it pushes up and down as it rotates, so I'm thinking that it may benefit from having thrust bearing at the ends of the shaft. This would also allow for a more precise sealing system.

[@waleedmmi1753]

Nice, what about water instead of air?

[@Goodish_night]

I'm curious as well, water doesn't really compress so I'd like to know what it would do in that

[@moldboy2]

Most residential water meters use this technology. So yes water would work just fine provided everything was sealed and aligned properly.

[@MrAjw312]

One of the major problems with this engine is that it expells most of its lubricant out of the exhaust while under power. Also, friction is high for the low torque that it produces. Its a very interesting concept though

[@justcraziii]

What would be the pros/cons of a nutating valve engine vs a impulse/reaction turbine?

[@CenReaper.]

Friction and low speed high torque are some of the examples. Also,as he said, NASA is making one that uses another of these to be spun by the exhaust gases.

[@crangado]

bro is so confident it wont break and not get impaled in the heart 🙏💀

[@cosmicgamer1054]

Of course that simple ideas could make a huge difference in the future good job man.

[@gsilva220]

1. Reminds me of the ROFLcopter sound made by microsoft sam, soi soi soi soi soi soi... 2. if you send designs for someone else to print, make sure that either you have a patent or that the design is properly in public domain first, otherwise you may lose the rights to the design. 3. Here are the four horsemen of engines that work well in theory, but not in the real world: A. Straight, edged, or otherwise unfavorably shaped sealing between the main power harnessing element and the rest of the combustion chamber (Wankel, vane, rotaries in general, rectangular piston, the indexing key sealing on this one, etc) B. Non-positive sealing (Coates, rotary valving in general, the spherical axle sealing on this one, etc) C. Undampened full engine power going through a lashing mechanism, generally gears (Achates, Avadi, etc.) D. Exotically machined parts to avoid the problem above (INNengine, etc.)

[@herseem]

This is a quality response. You've clearly understood the practical engineering issues at a granular level where most people don't see the subtleties. When I saw the Honda oval piston I thought, "That won't work well". They would have been better with a squashed circle profile instead of oval so that at least there was a constant curve.

[@Svistofication]

Hi. try to add some caviats instead of gasket. Just to making a resistance to the air flow. Like it does in the tesla valve. Maybe there will be not anough space just near the "ball". But you already localize side air flow - it vents between black cap and the shaft, so you can increase impedance by just creating ribs on the shaft, creating such valve. It is not perfect, but you will rid-off rubbing parts and even more - you will have something like air bearing.

[@integza]

That’s amazing !

[@peetiegonzalez1845]

Was hoping to see you in here. Now where is Tom Stanton?

[@Eluderatnight]

By advancing the position of exhaust port you will be able to get more torque out of it.

[@hazlox]

Who knew Saturn was a motor. Oh wait he keeps us moving. Makes sense.

[@Juanloki]

maybe if you put other air inlet in 45º or 90º it may help to do more pressure when the first inlet is bypassing between air flow up and down and when te second is changing, the fisrt will be in the best position. i think that the max speed and the torque will be incerase (sorry for my english, i'm learning)

[@biohazardousBiker]

Nice work. With the exhaust Port being right beside the intake would there not be a significant amount of air bleeding across and going straight out the the exhaust? could this be remedied by moving the exhaust the opposite corner of the intake to reduce the valve overlap. Also is the locating Notch necessary? Would there be any harm with the disc rotating freely in it's housing? Keep up the good work

[@sorinavila5073]

Locating notch would be better placed 180⁰ opposite to avoid most bleeding But it's a prototype with more optimization ahead

[@j.justin1511]

New sub here. As a proof of concept this thing is pretty incredible. Looking forward to your next iteration!

[@BRUXXUS]

Super interesting! I do wonder what potential benefit this design has over a more typical turbine? I bet this would work really well as a compressor.

[@TmitriZukowski]

As it is, it's a great "uncompressor" 😂

[@AZREDFERN]

My question is, will it work on suction alone? Because then you could create a closed loop system, sending the exhaust back to the compressor. Doubling the efficiency. Even if it can’t run on suction, the lower pressure on the exhaust side would be the same as running the intake side at a higher pressure for free. More like 1.5x efficiency. Otherwise when it comes to simplicity of manufacturing, I still think the classic pneumatic tool motors are more practical.

[@lemau8458]

No it will not, a hypothetical 100% efficient turbine like this would violate the law of conservation of energy. The output of the turbine would have nowhere near enough pressure to put air back into the compressor's tank, hence why they use a compressor to charge.

[@kerimkstati]

I wonder how effective it is to use as a pump 🤔

[@justinwolfe1073]

This design is used in some water meters

[@ericwalters3426]

Whats funny is this is almost the way valves for sprinkler systems work. Its not continue motion, but they have a diaphram that compresses when an electric signal sends the message to turn it on. And the compression of the diaphram is what release the water.

[@frydemwingz]

dont let the physicists touch the tools anymore

[@jeffellis1149]

Could you take an air feed from the input to the outer sides of the seals to equalise the pressure? You could use much thinner seals and reduce friction or even possibly use no seals except maybe an 'O' ring round the output shaft. For simplicity's sake maybe add a pressurised outer enclosure?

[@methylene5]

It's not an engine, it's a motor. There is a difference.

[@VingKong1]

🤓👆

[@DAAI741]

enlightening comment man

[@TheKingsapostle]

An engine is water cooled. A motor is air cooled.

[@DAAI741]

@@TheKingsapostle that's not true

[@methylene5]

@@TheKingsapostle That must be how "motorcycle" got its name. 🤣

[@ToddCalhoun]

It seems like a simple paddle-wheel style mechanism would have work just as well (perhaps even better) and would have been simpler to build. The this idea is pretty interesting. Thanks for posting.

[@ismalinkin]

0:53 rip the wheel of your compressor lol

[@davidswanson5669]

Haha, yeah but most compressor wheels are so jenky. I took mine off almost immediately after buying mine and just use a hand truck if I need to move it.

[@f.a.383]

@retsetman9698 I think you can adjust the torque and speed, by tilting the disc more or less. 45° maybe ?

[@whatthefunction9140]

I think a vain motor would do better

[@simonpercival-f6r]

Gerotor engine even better 👍

[@WolfHeathen]

The two most important questions are; how much wear and tear will this thing suffer over X amount of hours, and how much heat will such a design generate? The reason for why people don't build these is most likely because they didn't like the answers to those two questions.

[@DerSolinski]

Doesn't seem to be very efficient.

[@Lobsinus]

Neither is your mom but plenty of people still use her

[@Ur_local_dumazz]

@@Lobsinusdamn.

[@trash_ahh_gaming3473]

Damn ​@@Lobsinus

[@takumiinitiald7057]

Bro woke up and chose violence 😂 ​@@Lobsinus

[@eamonia]

Yeah, I don't think it could generate enough lift to get that air compressor off the ground...

[@ryanhager251]

In order to make this into a servicable craft, one would only need to change the gearing on the shaft, then route the air from your pump to the other propeller-mounted turbines(apparently). Hook up an air an compressor to the harness with the throttle hooked up to air controll, and set up a gyroscope, and you're set

[@regun2434]

Seems like you have no idea how dangerous those props can be.

[@thewatersavior]

wild man.. please build a test stand. nice work! love to see the efficiency on this

[@Himbeer-Toni]

Cunnect the air out to your compressor intake or a "vakuumer"/strong dust sucker. In a fictive real live costrucktion a air compressor could be part of the circle by deliver positve and negative pressure at the same time. What about way larger wings and stronger construcktion and let the force be delivered by hydraulik over all? may be slowe the nair but way more force possible, so larger bladewings could be used. You made me curious at all^^

[@phredflypogger4425]

"The best thing about this engine is it doesn't have any complex valves, a crank or even a piston inside". No they are all in the compressor.

[@jonathanhobson7534]

The best part about cars is that they don't have any complex distillation setups. No they are all in the oil refinery.

[@Jrod_FPV]

super cool ! I wonder how this would perform with thicker fluids, steam, liquids, etc.

[@STYX-a-Lot]

I saw a video where a guy used a single rotor made of plastic with these flaps on it, and these flaps would get thrown outward, as Air expanded in this off centered rotors housing. He tried to use seals originally, but they were either too tight, or, they were too loose and they leaked. So, he got a fluid with abrasives in it, and ran it until the tolerances were perfect, and then remove the abrasive fluid, and all of the parts fit together perfectly and did not leak. I just wonder if you could try something like that. He ended up using Teflon for the parts, and found out that Apex seals and stuff like that just had too much friction, so he made the parts exactly with the tiniest bit of interference in the tolerances. Then, he put the abrasive fluid in there… Or actually it was a fluid with some kind of fine atomized abrasive powder in it, and then ran the engine until the embraces did hewn all of the parts within a micron of tolerance between them. Then he cleaned off all of the abrasive liquid, and the fan ran unbelievably sealed, and very much positive displacement.

[@Spudz76]

Teflon sealing ring between the halves of the disc, function similar to a piston ring, and hopefully stay low friction (maybe there is something more slippery than oiled Teflon?).

[@rnamma]

"chamfer"@4:24 no! Instead subtract a sphere with something like 0.01mm to 0.05mm bigger radius then the sphere below to minimize air loss then use step format. However you are blowing to create another blow through mechanical, with a 90 degree bent down of the air compressor tube you get easily transmit thrust more efficiently

[@ndk2k4]

Would be interesting to see the performance lining a few of these up and running them like a 4 rotor

[@danohanlon8316]

Because it needs only one (central) engine to generate the compressed air sufficient for multiple aircrews and whereby navigation can be achieved by differential regulation of the air supples to each screw, this (lighter) power train seems the potentially optimal lift system for passenger drones.

[@reticenti6365]

I wonder if you could attach to it a diesel heater to get the air pressure from expanding gas off the burner. For a quiet and efficient engine.

[@Maxim.Teleguz]

You need to split the air into the upper and bottom section. Add small fins on the surface area of the disk just like a hydro wheel

[@marshallsober]

i think you need the second disk to restrain the exhaust and use it into your rotation, the 2 disk version you showed is kind of using the leakage and the exhaust to spin a second disk wich is 180 degrees from the first. I think you should try that two sphere in series is my first idea second idea is to turbocharge your exhaust into your intake using the leaks and the exhaust to spin a regular compression disk inside a turbo body. both ideas together and you might have something quite cool. damn i wish i had a printer

[@isaaco5679]

I feel like there should be a better shape for the inlet side of the disk. Perhaps an offset oval with a wide thin fin on the inlet and a short fat one on the exhaust to maintain balance.

[@dvanreese]

5 years from now someone will make this a car/truck motor just like the guys who built the car that runs and drives off water. Great work🫡! Love how you explained everything with detail throughout the process.

[@gmeast]

You need 2 "piston rings" on your 'rotor' with Spherical OD Profiles. This will 'SEAL' everything in the 2 directions of pressure drop. This might solve the impending lube issues. The concept is simple an deserves refinement.

[@bearnaff9387]

One - Congrats on getting me to sit and watch all the way through an advertising aside. You actually integrated the segue into your running commentary quite well, and had built good "momentum" by the time you got to the parts that were pure advertising. JLCPCB spent their money well here. Two - I would be interested in seeing you take this design in a second direction. I am very curious as to how this nutating turbine(?) functions as a hydraulic engine. I would like to see some discussion about its use both as a hydraulic actuator and as a possible water-driven motor for some kind of small hydropower system.

[@searchingforwings]

Try adding a short hose on the exhaust side i think it would improve its efficiency by reducing turbulence

[@unluckymerc2810]

well thats a cool take on a rotary engine i wonder how different size exhausts affect its performance

[@danparmenter525]

There are loads of weird hydraulic motors made for various purposes. Sinusoidal motors are quite nice 👍

[@rayraysss]

Graphite works great for both sealing and reducing friction

[@herseem]

That's a good idea, I think this is a good application for the use of graphite instead of seals and oil.

[@Spudz76]

Probably could run some powder through it and it would self-coat all surfaces by embedding to the plastics. Maybe a primer first to soften the top micron of plastic, low percent oil/acetone blend. Of course not on the transparent one or it would not be so transparent anymore.

[@brandonmack111]

Considering it's a first prototype, I'd say it's pretty good. I'll be very interested to see an improved version 😁