Opposed Piston Engines

[@clayton00_wiebe]

1:52 that sound would scare me more than the tank itself

[@ArcturanMegadonkey]

The Deltic power unit is the best sounding, the loco's were beautiful!

[@TheUphillracer]

The Rootes TS3 was probably the most heavily produced ‘uniflow’ two stroke with tens or twenty thousands produced over the life-span of the manufacturing process. Your description is fine with one minor error. It has two pistons within each cylinder bore. I used to repair these 45 to 50 years ago when I was a young truck mechanic at Mortons of Coventry and the chief component that broke aside from wear to the brake air compressor was the drive shaft for the Wade ‘blower’. This drove from the centre of one of the intermediate gears that drove up to the fuel injector pump and ran the entire length of the cylinder block. If one broke they were very useful as a punch or ‘drift’ for knocking out bearing tracks. I still have two in my tool box. I suppose I ought to make a short KZbin video to demonstrate what they look like. I have a book on the Commer truck brand which has a whole chapter on the TS3 and the four cylinder TS4 that was only built in prototype form of less than 20 engines. We were loaned a Commer CE ‘Maxiload’ with a TS4 which had a car transporter body fitted. That and the single Atkinson Borderer we had with a Gardner straight eight were the fastest trucks we had and could outrun a lot of ordinary cars from the time.

[@dianaburghduf1603]

Maybe on that side of the Atlantic, because more than three and a half million Detroit diesel uniflow two strokes were built in the us, more than 500,000 still are in operation.

[@TheUphillracer]

Diana Burghduf yes of course you are right, i ignored the Detroit Diesel range and I really should have added the word European.

[@billsoinski9136]

I was a little boy in Colorado and we were a lister dealer. Rootes-lister powered water pumps were common. Efficient but a little noisy. And hear people are trying to resurrect it as a new idea. Exceptionally prolific in the Marine industry too. Not a new idea. Just people trying to reinvent the wheel

[@TheUphillracer]

Bill Soinski I had completely forgotten that Lister used the Rootes engines. Somewhat cheekily Lister also used to rebadge what Ford 2713/14/15E engines as their own.

[@billsoinski9136]

I had my hands in thousands of listers from the LD through the jwsc. In fact I still have every factory book and references in my storage. Sir Richard was a good man hawker siddeley was a good firm unfortunately they rebadged a lot of junk. Hawker went from being engineers to the world to s holding firm... another poorly operated company. Blackstone and merrilees I've been in all of them. A lot of good memories a lot of hard work

[@papastratos99]

This is, hats off, one of the best vidoes of yours and perhaps the best on all youtube on this subject. I have been fascinated by the opposite design for quite some time now and I couldn't find much material to learn apart from achates and pinnacle which are the most well documented. Thank you for this, never clicked so fast on a video :))

[@sandrooliveira458]

5 banger Tank, is perfect

[@filipbrecelj669]

10*

[@edim108]

Cylindres? 5 Pistons? 10 Strokes? 2 Hotel? Trivago

[@mariosotillonaranjo9057]

5:34 sound like 5 cilynder audi

[@edgiestofcars]

mario sotillo naranjo Audi Quattro tank lol

[@bocahdongo7769]

Basically it is. 2-stroke made firing twice as 4-stroke. So it sound like Audi 5-bang at 6000 rpm although it has only 3000 rpm max Same case occur in Detroit Diesel 2-stroke V8. It has sound like normal gasoline V8 because it is 2-stroke

[@dragod7233]

That engine is opposed pistons 5 cylinder , it was in t64 tank and today is in ukrainian oplot tank

[@ashkira2]

@@dragod7233 Oplot has newer 6 cylinder version.

[@SeanTemple68]

That last Ruski tank at the end sounded badass

[@Tom-Lahaye]

Imagine the number of pistons in that Deltic locomotive, 2 Deltic engines with 3 banks of 6 cylinders each, makes 2 engines x 18 cylinders x 2pistons per cylinder is 72 pistons! They were very powerfull and fast locomotives for the time when created the late 1950s at 3300hp and 100mph top speed but they were very costly to maintain. Despite that they had an operational life of 20 years in which they averaged 2 to 2.5 million miles, and 6 are preserved and still running.

[@highlanderlk9867]

20 years operational life is a lot for 1950's standards

[@Tom-Lahaye]

@@highlanderlk9867 A lot of the large diesel engines built for locomotives and ships in the 1950s actually exceed the lifetime expectance of modern equipment. Many locomotives worldwide built in the 50s and 60s are still running , these engines can be repaired and rebuilt over and over again, and electrics on these locomotives can be overhauled. Now with all the electronics on them it ends as soon as spare part supply ends, those electronics can't be rebuilt, maintenance nowadays relies on component replacement. Here in the Netherlands there are still a couple of electric locomotives of 1950 running, so 70 years old, while stock built in the 1980s and 90s is either scrapped or extensively rebuilt with all new electronics and controls because the original couldn't be repaired by lack of spares.

[@johnfellows2867]

Also prone to " putting a leg out of bed " !

[@sohannaik9200]

I used to be a mechanic in layland for Indian army and trust me those l60's would have no issues at except for engine breaking

[@CMFL77]

Both of those Junkers videos had the distinct feeling that something bad was about to get sucked into the prop-wash

[@fr0ggy220]

5TDF engine and 6TDF engines are descendants of Jumo 205 engine. Hell, first series of this engines had even the mistakes in casting that were in Jumo engine,but it all were fixed later on.

[@fr0ggy220]

@Donovan Piko looted would be better description. Mind you, allies weren't stragers to this too, they got a whole factory that specialized on Vampire nigth scopes,wereas soviets had to reverse engineer this scopes from actual units.

[@filippoforni6781]

Could you introduce the subtitles again? I mean, there are some technical words I don't know and I can't Google them because I don't know their spelling.

[@VisioRacer]

I removed them as a test, so if you think it is better with them, I have no problem with a re-introduction.

[@filippoforni6781]

@@VisioRacerLet's what other fans think.

[@AlienLivesMatter]

Subtitles are a handy resource.

[@clevernduruza8624]

Try KZbin subtitles

[@mikel6989]

Filippo Forni try turning on the closed captioning on, there is a auto generated English subtitles

[@vegeta8274]

no wonder y i see ur every video whenever i scroll through feeds...cuz u rock

[@maxdippininmylolo6421]

1:54 Elephant

[@dominiquedescottes8314]

Enfin! De vrais beaux moteurs, de la très belle mécanique,véritable chefs d'œuvres Chers VRAIS MOTEUR, CHERE VRAIES,MECANIQUES QUAND NOS AFFECTS PARLENT ...

[@boyorougesauvage8584]

ok boomer

[@dominiquedescottes8314]

@@boyorougesauvage8584 alors roule avec ta trottinette, fait du covoiturage Petit écologiste, avec tes trois poils aux menton tu te croit le nouveau maitre du monde Les boomer,au volant de leur vieilles voitures ça peut donner des coups de pare chocs dans les trottinettes Aller fait un gros Dodo,et surtout pas de PIPI/CACA dans ton petit lit bleu Si tu t'ennuie tu as ta poupée en chiffon sue ton arrière arrière grand mère aimait tant

[@scwarzewaffe85]

I’m so glad you are back!

[@gassyirishman2859]

Nice locomotive, got that streamline look that I love...

[@carterdavis2793]

Imagine if they made a smaller version of these for cars or utility vehicles

[@g8ymw]

There is one in development "Achates" (I think that is how it is spelt) Being tested on a Ford pick-up, seems to have gone a bit quiet

[@MrWombatty]

@@g8ymw As often is the way with most of these unusual engine developments, it probably failed to even come close to meeting emission-standards!

[@KnHawke]

@@g8ymw Likely because they did pick up a Military Contract for Tanks. As to why they went quiet, I could only assume that they are in the production engineering stages, from the Foundry to the Machine Shop, and finally assembly. 350hp, 400+ lb/ft of torque, all the while getting 40mpg in a two ton truck. Magic I tell ya! VooDoo!

[@robertbalu8001]

@@MrWombatty not only they did meet the standards but are substantially below

[@MonMalthias]

@@robertbalu8001 Once anything enters the Pentagon procurement "process", expect to add another 10 years and 10 billion dollars to your development process. Not because it is needed, but because palms need greasing. And at the end, if you had not died or gone grey, maybe then would you finally see your product enter mass production. When Achates signed with DoD that was when I knew they were willing to give up any pretense of trying to break into the general market if only to get that easy money.

[@TheGalifrey]

Don't they sound amazing though!

[@norgiter]

T-64, BM Bulat -5tdf. BM Oplot - 6td-2e

[@ronbros]

I said back 50yrs ago that these opposed piston diesels will the final designs of diesel engines! they seem to all use some engineering of the German JUMO engines of the early 30s! also the UK engines made there units AFTER WW2 , using German captured technologies!

[@stephenkeebler732]

Actually, the French beat practically everyone: An early opposed-piston car engine was produced by the French company Gobron-Brillié around 1900. In April 1904 a Gobron-Brillié car powered by the opposed-piston engine was the first car ever to exceed 150km/h with a "World's Record Speed" of 152.5 km/h (95 mph). There were a few companies before this that made some very large stationary engines, but I can't remember off the top of my head (that was studies 45 years ago...)

[@offthegridwithbert924]

That Russian 5 cylinder 10 piston engine is super high revving, sounds angry hehe

[@dammaman]

Fairbanks Morse was also used for naval use, mainly for submarines.

[@zOiNhUh]

The Commer Knocker would've been a good powerplant for American trucks back in the day. I'm sure pulling the plug on the 4-cyl was one of the reasons why Chrysler almost went the way of the Dodo between the 70s and 80s...

[@lassancepimenta3811]

Nothing has been said about the Achates Power... 🤔

[@KnHawke]

One has to wonder WTF they been up to since they won a Military Contract and serious consideration from Ford.

[@metalmicky]

Yes it’s all gone quiet over there ,makes you wonder if it didn’t translate from testing to reality, I was hoping for great things from the development.

[@lassancepimenta3811]

It seems that if Cummins is investing in the idea, the project is technically, operationally and commercially viable.

[@lassancepimenta3811]

Of course the project needs to be further and better developed, but the potential is great. But we know that the directions of the industry are not those of technical excellence, but of commercial interests and others not so clear...

[@criffermaclennan]

I love that L60 scream

[@brentboswell1294]

Fairbanks-Morse: the original application for this engine was US Navy submarines, and then the company started manufacturing railroad locomotives powered by this engine from the late 1940's through the late 1950's, the Fairbanks-Morse Trainmaster being the most famous of these.

[@robertbalu8001]

you forget achates or some recent designs that'll get to the road cars soon

[@russredfern167]

I understand how gasoline 2 strokes with fuel and oil. Is there oil add for these diesels or is the also a lube.

[@51farmalla]

2 strokes don't have to be crankcase breathing like most small engine two strokes. Most large diesel two strokes conventional and opposed position have oil in the crankcase. They must however be scavanged somehow, normally with a blower. Now Lanz Bulldog hotbulb engines are crankcase scavanged large single cylinder, single Piston hot bulb engines that do burn some of their lube oil which is pumped to the bearings and such in the crankcase, they also have a scavange pump that returns what oil it can that isn't combusted back to the reservoir for reuse.

[@philipfreeman72]

Would it be better to use HHO along with the diesel & venturi ports to eliminate the turbo.

[@cheekymescalito3249]

Hey VisioRacer! You are #1 internal combustion engine guy on youtube. Are you planning similar videos about jet engines? That would be awesome.

[@georgesalf2447]

4.32 deglees had me crying 🤣🤣

[@crazyDIYguy]

Best sounding engine ever, i have to have one 👌💯

[@BerlietGBC]

Good work, but you missed out the Doxford engine, some good clips of them with there water cooled pistons

[@exothermal.sprocket]

Not long ago, Achates Power was working on an apposed piston gas engine, compression ignition at 18.5:1, and they used an F150 truck for the test mule. Not sure where this project is now. Power and efficiency was pretty amazing. www.sae.org/news/2018/01/achates-power-op-engine-begins-real-world-test-phase

[@MilesPrower1992]

I like the subtitles, sometimes I watch the videos with the sound off if I'm in public

[@baldybaldwin2825]

We had Fairbanks Morris 10 cylinder 20 pistol engines on the USS Irex SS 482 submarine. I was a throttleman 1600 horse power at 750 rpm. Battle conditions 850 rpm. Cranked one to 1300 rpm and blew the attached generator up, engine was fine. Great engines, later I was on a submarine with General Motors 278A’s V16, 278 cubic inches per cylinder, junk!

[@andipabeangitenrisessu7573]

what about efficiensi compare to ordinary diesel engine whit same displacement and power?

[@pianofry1138]

I'm belive ones in development are getting 30% more efficiency but I'm not certain if that is diesel or gasoline.

[@relmdrifter]

Cool vid, thanks

[@gckrul9927]

Where is the oil for the crank ?

[@weemankyle]

Almost to 400k

[@ultaseedhaeksaman]

How is this different from the Napier Deltic Locomotive/Marine engine.

[@twitchb1584]

Could you do a best sounding rally car video?

[@philbell7952]

Worked on F/B 8 /1 8’ @ 5 /14 in’ Engines ,messy engines but a lot of HP.

[@sebastianhasbun3846]

How do you not have more subscribers

[@pilotmogli]

Junkes Jumo have engines with 2000 whp at the end of war...

[@official_commanderhale965]

BadBoy most were in an experimental stage or pre-production. Lack of fuel for testing and the onset of the wars closure made few of these engine available.

[@gassyirishman2859]

Diesel Airplane? Huh never would've thought they exist...

[@twistedyogert]

They have a very unique sound.

[@tenix6698]

5:13 wait, how can it have only 5 cylinderes!?

[@samuel_samuel_samuel_samuel]

2 pistons per cylinder

[@eEnzo0]

Leyland L60 was one of the worst engines ever designed... ever. It was on the British MBT, the Chieftain which was breaking only if you looked wrong at it. In the Iran-Iraq War of 1980-88, including the largest tank battle of the war, with mixed results as the Chieftain Mk 3/5 suffered from chronic engine problems and low power-to-weight ratio, making the Chieftain unreliable and slow when manoeuvring over harsh terrain, which in turn made it prone to breakdowns in the midst of battle or a sluggish target and thus vulnerable to enemy tank fire. Out of the 875 Chieftain tanks that had started the war only 200 were left.

[@upsidedowndog1256]

An American company is attempting to use this design for aircraft engines. I haven't seen it in a while, so no idea how it's progressing. It's aim is to allow small aircraft to burn jet fuel.

[@zOiNhUh]

You mean that Gemini engine? AFAIK there were some versions available for sale, yet they were still only allowed for experimental aircraft as they still lacked the FAA certification.

[@ariefbudi427]

Some say Leyland l60 is notoriously unreliable. Is that true?

[@JoshRex7ven]

I wouldn't say I'm opposed to it

[@gassyirishman2859]

The Soviet tank almost sounds like a Detroit Diesel

[@alternator7893]

50% thermal efficiency

[@dragod7233]

i have heard that this engines advantage over others is their efficiency

[@fidelcatsro6948]

time to put one of these in my motorcycle

[@vladanovicke7152]

You forgot Achates OP unit

[@lassancepimenta3811]

kzbin.info/www/bejne/i3eYm2R6q6hsa5Y 😉

[@lassancepimenta3811]

kzbin.info/www/bejne/i6myf2B-ftGta6c 😃

[@ralfdeckers1703]

Also interessant ...new ic engine deckers double cycle....

[@ernestimken6969]

The problem with opposed piston engines is they cannot meet clean Air regulations in the US.

[@zOiNhUh]

Nowadays with EFI this wouldn't be the case. At least the Commer Knocker, despite having a greater soot emission, had fewer NOx emissions than some Euro-3 engines, compared to an Isuzu NPR and to Fiat Ducato and Mercedes-Benz Sprinter vans.

[@jacksrandomadventures2769]

these engines are confusing

[@sohannaik9200]

Engineering explained has a really good video on how this works and how incredibly efficient it is

[@Sakhmeov]

Not confusing at all; actually way simpler - and therefore more efficient - than "headed" engines. Also, there's yet another advantage; because you can single-cast forge or even die-cast and then etch the block from a single piece of metal, you can then make it crazy, crazy strong. Which in turn means you can turn up the compression. Meaning, of course, more power. The problem with OPCC engines has always been the usual tolerances, what with having to machine deep cylinders in hard material evenly, and then the power transfer. I.e. "how are you going to get the power out of two cranks and sync it up so that it runs nice and smooth out of a single driveshaft?" The Deltic in particular has a very funky setup with one of the cranks rotating at an opposite direction to the others in order to be able to maintain timing (in order for any OPCC engine to maintain flow, the exhaust side pistons must open to port before the inlet side pistons do, and must therefore also be a little advanced in their timing). After that though, it's "pretty easy", since we've got a hang on all of this stuff with compression and such by now; you've just got to smack a blower on the front to keep the air cramming together and moving in, and then preferably something particularly clever on the backside to help with the boost without getting in the way of scavenging. And then you have the option of whether if you want to compound the thing for big power or not.

[@g8ymw]

@@Sakhmeov The Napier Deltics have a problem with cracking around the ports (I imagine the exhaust ports)

[@Sakhmeov]

@@g8ymw Yep. Difficulties in manufacturing along with probably some side loads and high-temp combustion and exhaust. Also, even though they're smooth-running "in themselves", they also apparently had a tendency to shake to pieces at least parts of what they were bolted into due to the sheer power of some resonances which would crop up. Great in torpedo boats, but not as great in the wrong railway application. My idea for a few years has been to make a different kind of crank/layout and porting setup, and then running things on alcohol (self-cooling, fantastic gas expansion, partly self-oxygenated, etc.). There's some lovely new data on alco-HCCI coming out of Uppsala University, etc. Could probably make a killer air engine, if built right.

[@carlosandleon]

@@Sakhmeov I guess if the two crankshafts spun in the same direction you can put a gear between them and have that be connected to the shaft driving the wheels. Simple solution

[@Apoc_Bone_Daddy]

I could use that as a dirty pickup line *Eyy baby, wanna rev up my opposed piston engine?*

[@hellohun7331]

Modern diesels are much cleaner.

[@do-beebrothers2550]

For the record, I am opposed to this method of internal combustion

[@marcob4630]

why not on common autocars ??

[@almesantana1483]

Ese tanque suena lindo cuando acelera 2.1 minuto

[@EdgyNumber1]

I fucking LOVE the Deltics.

[@IsegrimSTP]

Jumo 205 FTW

[@dirtypure2023]

I want to learn how to fix my car. Can anyone direct me to some good channels that effectively teach automotive basics? Thank you kindly. Best regards from Texas.

[@mysock351C]

As far as FM goes, they've been brought under the umbrella of a larger consortium so it looks like its turning into a zombie brand of sorts. Their latest engine looks like a Porter Cable tool from Harbor Freight: www.fairbanksmorse.com/trident-op. But, surprisingly the FM 38 8-1/8 _is_ still in production, but only for select marine applications that are mostly emissions exempt since its a 2-stroke. But in todays climate I wouldn't be surprised to see production cease within the next 5-10 years, unless markets in developing worlds still have a demand for them.

[@filipbrecelj669]

its sad that ecomotors opoc is dead achates stilll seems to linger on

[@skillet5479]

Coomer TS3

[@TheCUTTERbyPHOENIX]

6:04 Sounds like the Viper but on steroid !

[@almesantana1483]

Para tener un motor eficiente tendrán que volver al pasado hacer el motor de dos tiempos diésel

[@rwlewko]

Would any of these engines be able to meet even tier 2 emissions regulations?!!! This means that none of these engines would be acceptable in today's regulatory environment.

[@burungbaguette]

To be honest, I like your old format more. Less voice, more engine heaven.

[@BigSmartArmed]

5TDF was a logistical failure from conception and still is a failure in use. Gas turbine powered T-80 was a necessity born out of T-64 failure.

[@zocca0134]

What were those russians trying to do at the end? XD

[@Aiono777]

But the gearbox limits are still the problem...

[@kermitttt]

Napierdeltic XD

[@gassyirishman2859]

Deglees...

[@claytonator343]

5:28 thank me later (T-64)

[@nyleen]

Today I learnt

[@oscarwalton1188]

That Russian tank sounds fantastic

[@fixedguitar47]

Need something quieter, cleaner and with centuries worth or cheap abundant fuel.

[@PeterGort]

Check out Achates engine at achatespower.com for a modern development of this concept

[@ИванБринько-ш4п]

Tank T62 ussa

[@dginia]

They al appear to be bad for air quality.

[@colemanadamson5943]

Audio terrible.

[@cloroxbleach6751]

Subtitles

[@iversonjcameron]

Find a better engine than a jumo205c .....never, it could be used today on my F350

[@mbmb2537]

second

[@fernandnaudin8326]

Moteur fairbanks

[@naufaldyramadhan1433]

first

[@vlga8917]

But the cheiftains engine was shite.