Seeing u tell the story of a task so close to ur heart is so very impressive to me . It was very smart to take something from the past and remake it into a cost effective part of the future.I just love it Dad. I'am so proud of you !!!
@techlife9665
6 жыл бұрын
Such a great guy
@chaytonruijsenaars3971
5 жыл бұрын
i want you to know that engines have been my passion since i was a kid tearing apart old lawnmowers. always loved unconventional like wankels and 2 stroke gas motors in cars. and hes right. poppet valves lived way longer than they should have. you know how many valve lash adjustments we are always doing on trucks. in 1,000,000 miles on a well taken care of truck the only rebuild your likely to do is rebuild the head because the valves wear out naturally. its metal on metal between valve and seat with no way to oil it. valve guides get very minimal oil because its skimmed off by the seals or it would just burn oil. . .long story short of all the motors ive ever seen this is the one i think i would have in my dream machine if i could pick any engine design ever. love diesels. love 2 strokes and love simplicity and reliability. this engine i would expect to live twice as long as any heavy duty over the road engine if it were built to the same caliber
@jlo13800
5 жыл бұрын
I had a ccw 440 twin john deere when i was a kid, some guy had a cr500 kid said his bike motor was more efficient with less heat loss and he was faster. god engine 2 stroke efficiency was argued when we were young!
@BakerRacing
5 жыл бұрын
Dr. Lemke = A brilliant human being!!!
@davidsands6227
3 жыл бұрын
This is old technology. Back in the 1960's a British Company, Tilling Stevens, ( originally a builder of electric vehicles) based in Maidstone Kent built a three cylinder opposed piston 2 stroke diesel engine, known as the Commer TS3. This engine used a single centrally mounted crankshaft u on the centreline under the cylinders. It was supercharged using a Rootes blower. The engine had a high power to weight ratio and was popular in trucks and buses built by the Commer motor company a subsidiary of the Rootes group later absorbed by Chrysler and now part of the French Citroen/ Peugeot PSA group. The TS3 engine was known for it's distinctive sound which gained it the nickname Commer knocker. It was not particularly fast but had huge pulling power. It had tendency to soot up and lose power before decoking it self in a shower of sparks after which full power would be restored. Another British company Napier ( later English Electric) developed the opposed piston engine further by joining three of them together in a delta formation with a crankshaft at each corner to produce the 9 and 18 cylinder Deltic s that powered the most powerful railway locomotives on. British Rail at that time and also the Royal Navy's Ton class minesweepers.
@hectortellez7776
3 жыл бұрын
Wow, amazing gentleman, working on my third patient! Dr. Has 114 patients! He inspired me! Thank you sir! ❤️🇺🇸
@agt155
5 жыл бұрын
Dr Lemke would have been fully aware the design didn't "lay fallow for 70 years." The British Chieftain battle tank of the 1960s had an identical type opposed 6 cylinder 12 piston 2-stroke supercharged diesel engine. There was also the Rolls Royce K60. The most advanced type yet was the Deltic triple opposed 3 cylinder train and boat engines of the 60's, still in service up until the 2010's.
@jlo13800
3 жыл бұрын
That RR k60 was awesome 2 stroke!
@PM-xt8yc
3 жыл бұрын
You are correct sir, the company I work for still rebuilds the Deltic and other 2strokes
@jlo13800
3 жыл бұрын
@@PM-xt8ycYou could probably make a 9.6L mini deltic 2 stroke out of 3 3.2L 60 deg v6 mercury optimax's! Caldwell raving makes up a 3.5L 550 HP v6 or a 4L over 650 hp v6: Malke is up with softer 6061 made on a CNC thingy and your good to go. Now op 2 strokes are awsome and a 1400 rotax OP could be made out of 2 850 etec rotax for a sick skidoo mountain sled with turbo, you now have twice the bore to stroke ratio and that would kick in early way more low end torque and lower clutch engagement! Here s a new cummins OP 2 stroke:mart.cummins.com/imagelibrary/data/assetfiles/0058689.pdf?fbclid=IwAR3PWM1vZs8JxpuZMoJO5Y0YFoF9pV9fuGEhbyiGgxIP0r6sxzhqo5_P9oY. A Polaris assault 1700 OP made out of 2 850 patroit big block engines. The rotax is better built, has piston cooling oil injection and longer stroke!
@jlo13800
8 ай бұрын
Where the hell is this OP 2 stroke today??? Hmmm.
@jlo13800
7 ай бұрын
How about an OP 1716 made from 2 858 arctic cat engines.
@keithralfs5190
4 жыл бұрын
As a Ship's Engineer l spent much of my career with opposed piston engines:- Doxford, Harland & Wolff, Berminster & Waine (B&W), Napier Deltic also in the 1950's there was a 3 cylinder opposed piston truck engine
@frankbertola5466
5 жыл бұрын
was very fortunate as a young boy about 50 years ago to with my dad to do a rebuild on a3 cylinder Rootes opposed piston diesel. Now all these years on are so so excited to experience this video and witness this guest. The word freedom especially for a human being.
@nigelmitchell351
3 жыл бұрын
I remember as a kid the bin lorries in our area of the midlands were Karrier 2 strokes they sounded brilliant.!
@leonarddaneman810
4 жыл бұрын
I love the 2-Stroke. Had a Saab 96 with one. Simple, more powerful . . . emissions and lubrication always the issue. This opposing piston design is so brilliant. Good luck with taking over the diesel power industry.
@jlo13800
3 жыл бұрын
Lightning is a 2 stroke too!
@jlo13800
3 жыл бұрын
Now lets make an OP 1700 2 stroke made out of 2 850 rotax etec motors. How about a Polaris assault 1700 op 2 stroke made out of 2 850 liberty patroit engines!
@jlo13800
2 жыл бұрын
Me too im a 2 stroke fan got an 8v92 and and OMC johnson small block v8 2 stroke side oiler 4L. Both are using XD-100 BRP.
@buddbuilt
6 жыл бұрын
This makes me proud to say I live in San Diego. I truly believe this will have a huge impact. cant wait to see these on the market
@blondegirlsezthis8798
3 жыл бұрын
Love to see two of these engines built into a push-pull aircraft. Takes care of redundancy, and would be the fastest piston powered modern aircraft as well as the most efficient
@jlo13800
2 жыл бұрын
How about a inline 6 OP 2 stroke dfi outboard from mercury! A 1700 OP made from 2 850 Rotax Etec for a trail sled or a 1000 OP 2 stroke dirtbike from based on 2 KX500, CR500 or maico 500 2 strokes. that would make a sick enduro bikes. Also the 3.2 Optimax mercury outboad is 3.16L (193 CID) at 60 deg block so a 9.48L (579 CID) Mini OP 2 stroke deltic could be made for a stern drive, truck or what every. I think the new 10.6L triple and OP cummins 14.3L 1000 HP are dry sump like the 850 Rotax or mercury optimax. BRP XD-100 2T is what Achates power is running in their new 10.6L. Silkolene pro 2sx is sae 40 ester 2t like motul 800 2T is overkill unless you turn these 2 strokes up with lots of boost. i have already run a few gallons of xd-100 brp through the bottem end of my 8v92 silver detroit 2 stroke with turbo with good success, its full synthetic SAE 30 with higher film strength than petrol based oils run much cleaner and quiter now, its 364 a jug is my only grip about it.
@joelgarcia-zc9dk
Жыл бұрын
Would love to see it in a sprinter or ford car that get double the mileage!!
@blondegirlsezthis8798
Жыл бұрын
@@jlo13800 If you build it, I think offering a punchcard to emergency rooms (pay for five get the sixth free!) should help with marketing lol
@ronaldroberts7221
3 жыл бұрын
Without a head gasket, the opposed piston configuration can run very high compression ratios, and with the exhaust ports being used instead of valves, you can run high boost pressures without fear of damaging exhaust valves, which are the weak link that limits power-per-volume. I worked in a Fairbanks-Morse on a submarine, so these fascinated me.
@manofsan
3 жыл бұрын
So an opposed piston engine needs a minimum of 2 pistons as an opposed pair, and would necessarily always have an even number of pistons? In which case, is there any possibility of having only 1 out of 2 pistons running - say, for the purpose of conserving fuel consumption?
@jlo13800
2 жыл бұрын
Yes true. i would love to see a 1700 OP skidoo based on 2 850 Etec crancases.
@jlo13800
Жыл бұрын
How about an OP 2 stroke dirt bike! KX 1000 mage from 2 500’s for super motor
@paradiselost9946
11 ай бұрын
staying stuck in the idea of compression ratios is never going to pan out. when you get the "squeeze" out of the cycle, do it _somewhere else_ instead... then youll see results. this is nothing more than the same old mechanism acting at a different angle. all the same drawbacks as a plain old crankshaft. suck squeeze bang blow... archaic and wrong... try squeeze suck bang blow instead ;)
@kennethbrown375
6 жыл бұрын
Kudo's Dr Lemke, I worked for you back at RPI. Enjoyed that time. I noticed in the picture you have 2 other employees working with you now from RPI. Great Job.
@davidellis279
4 жыл бұрын
After working on Diesel engines all my life one of the most efficient for its size was the Commer TS3, it was a horizontal 3 cylinder 2 Stroke diesel which like all two strokes was very noisy because of the problems with the exhaust systems. The Foden 2 Stroke was another engine that used to scream at full engine speed and you could hear them coming miles away like Detroit Diesels. I like the simplicity of this engine and the few moving parts and if they can get it right on emissions and reliability then it's got to be a success if they can convince manufactures to use it in their vehicles and might give diesel a new lease of life.
@jlo13800
2 жыл бұрын
The Nissan UD was a pretty nice 2 stroke too. imagine and OP 2 stroke Yamaha banshee? Ho about a 2.6L OP 2 stroke triplle made out of 2 1300 Yamaha 3 cyl wave runner engines? OP uni-flow 2T eliminates the ugly tuned pipe and the pistons acts a a trapping valve with the exhaust ports. How about a mini Deltic made out of 3 3.2l 60 deg v6 mercury optimax big block 2 strokes. Each one is about 3.16L witch would give 9.48L or 578 CID Deltic 2 stroke OP madness!
@dedos-pima
4 жыл бұрын
Congratulations on such an historical effort and more, congratulations on having a child so dedicated to her fathers happiness. You are most fortunate on both accounts. Good luck!
@nandagopaliyengar1258
6 жыл бұрын
James . I am amazed by your achievements. Hats off to you from India.
@Visionery1
4 жыл бұрын
Impressive! Let's hope the auto makers implement this engine.
@jlo13800
4 жыл бұрын
I hope so nice to see a 2 stroke comeback. I hope for OP 2 stroke snowmobile, watercraft, dirtbike and other also. Imagine a 1700 rotax OP made from 2 850 rotax etec's! How about a kx1000 trailbike made from 2 kx500 motors into an OP 2 stroke!
@jimmurray2965
Жыл бұрын
What an absolutely wonderful entrepreneur!! Continued success with his engine.
@jlo13800
Жыл бұрын
I wouild love an OP 2 stroke in a snowmobile. A Rotax 1700 OP based on 2 850 Etec engines. that would be sick.
@davidellis279
4 жыл бұрын
This engine design looks brilliant, it's simplicity is outstanding, if it can meet the emission standards needed in today's world I cannot understand why a manufacturer hasn't snapped it up. The lack of moving parts should make it a very cheap engine to produce and overhaul when required. If quality components are used the engine should be capable of mega mileages if oil and filter changes are done at the required intervals.
@zapbrannigan000
5 жыл бұрын
the british truck maker Commer used a similar opposed piston 2 stroke engine in its trucks back in the 60"s.
@atheistmac
3 жыл бұрын
And then along came Chrysler and they ended further production of TS3 and development of TS4 which were both superior to American engines of the time.
@legendario13
5 жыл бұрын
I salute Dr.Lemke and thank you all for your work. I would reaaaaaaaaallly love to be able to drive a truck in the future powered by this renewed engine.
@peterandrews5956
7 жыл бұрын
Very interesting. Amazing that such a successful engine design was neglected for 70+ years!
@jlo13800
6 жыл бұрын
I love the jump 205, Now drop that in a stretched scaled up Yamaha banshee with tuned pipes! Use a turbo and all the castor 927 maxima 2 stroke oil one could get
@agt155
5 жыл бұрын
It wasn't neglected for 70 years. look up the Rolls Royce K60, Leyland L60 and the Deltic type train engines.
@patrickhorvath2684
4 жыл бұрын
@@agt155 Opposed diesel engines power the emergency generators on US nuclear submarines. Just a matter of passing ever more stringent emissions for road vehicles.
@soapmaker2263
3 жыл бұрын
They've been used in trains and tanks and planes historically, but apparently until recently nobody managed to successfully scale down the concept to be able to work regular road vehicles and make it affordable.
@guloguloguy
8 жыл бұрын
"BRAVO!!!!!!!!!!!!!!!!!!' I'm VERY EAGER to see this technology spreading into the marketplace!!! = AWESOME!!!!!!!!!
@iguanaamphibioustruck7352
4 жыл бұрын
My first selling job was at Vickers Hydraulics in Chicago as an application engineer. The Vickers greatest achievement was the balanced vane pump. It was the basis for Caterpillar hydraulics for years and is probably even now the mainstay. I am impressed by the fact that the double piston concept exerts a force on the bull gear at 180 degrees, which is a balanced power train. I am a student of distribution of power and use it in my tracked vehicles. Iguana
@ArcturanMegadonkey
6 жыл бұрын
Dr James Lemke, if you are reading this PLEASE build some 'Deltic' engines. Triangular opposed piston two stroke diesel engines, I'm sure you've looked at the design.
@jlo13800
7 жыл бұрын
The 2 stroke is good for high performance and much simpler design.
@royroye1643
4 жыл бұрын
How about 3, 4, 5, n strokes meeting in the middle. You can also make it 3D, the n strokes configured in a sphere. But 2D first, I wish I knew CFD.
@conantdog
3 жыл бұрын
Timing is everything, the future for trucks is electric drive. And the future is now. Beautiful power plant 👌
@marcob4630
4 жыл бұрын
I really hope that this genius two stroke diesel engine will find a widespread application also for common automobiles !!
@jlo13800
2 жыл бұрын
Me too hope fully snowmobiles will get OP DFI 2 strokes too.
@starcloud4959
6 жыл бұрын
This is very inspiring.I would like to combustion engines co-exist in competition with EVs in the furure.
@robertbalu8001
4 жыл бұрын
or as range extender in series hybrid
@Squeezmo
4 жыл бұрын
An OP engine driving a generator that powers wheel-motors at each corner. You can even have variable crank-lead … closing the exhaust port first actually supercharges the engine... and I alw3ays wondered why we don't pressurize and heat the fuel using exhaust heat to above its autoignition temperature... it would seem that lower compression ratios would be needed and denser-cooler air charges can be used.
@Squeezmo
4 жыл бұрын
no transmission, transfer case, driveshaft, differentials... but heavier unsprung weight... electric supercharger... exhaust heat-driven absorption cooling system... (adds 30% eff when you ditch the radiator)
@jlo13800
4 жыл бұрын
@@Squeezmo you can mess up the octane rating doing that not sure.
@benwilms3942
4 жыл бұрын
@@Squeezmo fuel going into the pot takes heat out of the pot, that's why very lean engines run really hot. If you take some of the heat that would have been dumped with the exhaust and pump in back in with the fuel, you take away that cooling effect right where the heat is generated, which probably won't hurt your engine, but will probably increase NOX emissions.
@andrewstone1574
6 жыл бұрын
A great video, many thanks! I TOTALLY agree with the final sentiments regarding innovation & the corporations. Just look at what Chrysler did with the Rootes Group’s (UK) engine developments in 1966. Thank you Achates.
@bulvinescatologist2374
4 жыл бұрын
I have been looking for an engine for my1990 F350 that has need to replace the 7.3 idi . I would like to know if the cost & the cost.
@fridgemagnett
6 жыл бұрын
Junkers Jumo? The Napier Nomad was pretty efficient too (if you could get it started). The Rootes TS3 also, but that was supercharged. It's great to see this 'floorplan' being improved upon.
@RonaldDCass
3 жыл бұрын
Did you ever research the "BOURKE" engine? in the 1970's my Dad & I were very interested in the development research by several individuals. We came up with some modified concepts but got bogged down in other more pressing pursuits. I think I still have notes SOMEWHERE, but don't know where yet. Our ideas involved 2 cycle opposed cylinders. There was another engine that has six cylinders with 12 pistons that worked a "woble" plate. It was a modified "Vickerman" pump design concept. Very efficient, compact, light weight per horsepower.
@bobolovemechanic
6 жыл бұрын
What is the optimal & maximum RPM by this opposed concept? What is the level of the volumetric efficiency, since the concept allows only brief time for scavenging & forced induction of the two combined cylinders volume? After exhaust ports get closed, it is only very few degrees left for forced induction. (Around 15-20 degrees) Thank you.
@jackbarry9469
4 жыл бұрын
Pretty cool excited to see implications of this in trucking yes but also Agriculture and construction! With the less moving parts if we could get more lifetime (hours) those communities would like the engine
@GeorgeKennerLaser
6 жыл бұрын
Great video.... time to see this on the road!
@philipfreeman72
4 жыл бұрын
Would it be better to add HHO with venturi ports to eliminate the turbo & clean up emisions.
@scenicdepictionsofchicagolife
3 жыл бұрын
Please bring this to market fast.. the window of opportunity is closing with the likes of Tesla & Co. People think there's no room for innovation if the ICE but this is solid evidence to the contrary.
@petergriffin4629
7 жыл бұрын
I totally believe in this engine design! I also think that this engine doesn't only have superb economical potential, but it could also be turned into a never seen before power mashine. I think you should enter some sort of racing sport at one point in time!
@walterrudich2175
4 жыл бұрын
This is not religion. So your belief does nothing to the project.
@stephenkeebler732
4 жыл бұрын
1904 (17 July) Ostende Automobile Week: Rigolly, in a four-cylinder opposed piston French Gobron-Brillié, became the first to exceed 100 mph (160 km/h), averaging 103.56 mph over a kilometre. They were setting records and winning races over a hundred years ago with this type of engine concept...
@kevinolson1102
2 жыл бұрын
@1:02 "This engine set a record in 1936...6000 miles un-refuelled". Anyone have a reference for this? I've found range specs for a Junkers Jumo 205-E powered Dornier Do 26 of 2000 miles (water take-off) or 3600 miles (catapult launch with reduced payload). I haven't been able to track down a reference for the 6000 mile figure, however. Any help with a reference will be appreciated. Edit: Could this have been with a lighter-than-air craft? Both the Graf Hindenburg and the Graf Zeppelin reportedly had Daimler Benz DB 602 engines, not Junkers Jumo engines, but could there have been any other airships in transatlantic service to have made this record breaking run?
@ScottJWaldron
5 жыл бұрын
~50% efficiency improvement over traditional gas engines? Woah. With that type of efficiency boost something like that would be fast tracked to production cars and trucks. It's odd how technologies like this fly under the radar. Looks like there is some type of hybrid version in development with the department of energy. Interesting stuff!
@walterrudich2175
4 жыл бұрын
The electric motor is twice as much better than this engine. So there is no niche left on the market.
@stephenkeebler732
4 жыл бұрын
There is already a niche taken up by this technology: US Submarines Auxilliary Generators use the same Fairbanks-Morse engines we used in WW2 on Diesel Subs, only more modern, because of Efficiency, Power, and Dependability. Also, the Russian T-64 Tank series uses this style only flat, because it freed up enough room in the tanks volume to lower the turret, and power for its size. The Junker Jumo 205 series, flew German transport planes over 6 thousand kilometers, with a somewhat similar technologyon a tank of diesel In the 1930s! Many modern engines still can't achieve that. Also, this engine is perfect for multi-fuel, and efficient generators, to make that power when the Grid goes down. This is more than just a small niche...
@DanBurgaud
5 жыл бұрын
"They didn't!" Best answer ever! Love it.
@walterrudich2175
4 жыл бұрын
And there is a reason why they didn´t.
@Zilla__man
5 жыл бұрын
What's holding it back from going into production?
@venusreena2532
4 жыл бұрын
Car makers are so busy copying they dont take risk.
@jlo13800
3 жыл бұрын
@@venusreena2532 Automotive is a 4 joke culture.
@venusreena2532
3 жыл бұрын
@@jlo13800 .. Well they take a safe copy cat approach.. Only Mazda had the stones to develope the Wankel.. Our Rotor engine is superior.. only one internal moving part.. multi fuel and high torque..
@jlo13800
3 жыл бұрын
@@venusreena2532 And use 2 stroke oil injection too.
@joelgarcia-zc9dk
Жыл бұрын
Thank you for your good work!!!
@andrewbaillie6291
Жыл бұрын
Could you make this engine small, for an outboard engine and a motorcycle?
@cap10newport95
6 жыл бұрын
Is this any closer to getting in production? There was the truck at the Detroit Auto show but I haven't seen it actually running.
@dparker8419k
6 жыл бұрын
Cap10 Newport that's the same engine
@edmondmkasian6173
Ай бұрын
😊hi. Is there any possibility to talk with company people ?
@chaytonruijsenaars3971
5 жыл бұрын
we need more people like him. i always loved 2 stroke diesels from the beginning and apposed piston engines are brilliant. why didnt they stay? cause people just like to go the easy conventional route instead of making something cool. i wanted to build a v8 trike with a roustabout truck bed and the whole thing to look like something nobody has ever made. i would rather have an achates 2 stroke diesel apposed piston than any v8. not only do they sound awesome theres no valves to wear out or float at high rpm. the whole engine is just rotating assembly. not to mention power stroke every revolution is super super underrated. basically the same torque at half the rpm of a 4 stroke or half the displacement. i want these to make a strong come back, always wanted to see rotory valve engines come through but this is better anyway. poppet valves have always sucked just nobody realized how much they were limiting themselves by following the conventional 4 stroke train
@walterrudich2175
4 жыл бұрын
Now it´s all over. The electric motor will put an end to the ICE engine within the next 8 years or so.
@splagyetsi3287
2 жыл бұрын
I own a ford truck and would be happy to trade in my Ford in 5 years to buy a new Ford with this engine in it. I love efficiency and that's one of the things I look for in a new vehicle. The environment gets a benefit simply because you are burning less fuel.
@423FGFDFHFHV
2 жыл бұрын
Could it run on petrol? Also, litres, 2000 and one.
@jarveybrown3907
4 жыл бұрын
I hope you have swift entry into the automotive and truck industry. Stay safe! This is not at all a new concept for a diesel engine. I was an engineer in the US Coast Guard in 1974 on a 378' high endurance cutter that had 2 4400 hp Fairbanks Morse opposed piston diesel engines and 2 25,000 hp Pratt Whitney gas turbine engines.
@stephenkeebler732
4 жыл бұрын
And those Gas Turbines could pass everything in the Sea except a Refueling Ship...
@robertneiss1954
5 жыл бұрын
Love, Love, Love this engine!!! Absolutely brilliant!
@walterrudich2175
4 жыл бұрын
The ICE engine is dead.
@jlo13800
3 жыл бұрын
Imagine making a 1700CC out of 2 850 etec rotax or a mini deltic out of 3 3.2l 60 deg optimax v6 outboard big block. that woud make a mini deltic of 9.6L of 2 stroke power!
@mbhang834
5 жыл бұрын
Wow - this is so inspiring.
@apsolltd
5 жыл бұрын
The British Diesel electric Train Deltic used this engine in the 1960s in a Delta shape using 3 crankshafts, it was a 2 stroke Turbo Charged Diesel engine and was very efficient. It was finally replaced by Electric Trains.
To hear a pickup with an Achates (and stacks) scream like an old Detroit would touch me in a very special way.
@grahamclarke2319
3 жыл бұрын
The Napier Deltic (Paxman Deltic later) 18 and 9 cylinder engines are still around in heritage railway use in the UK. They are even being overhauled as I write this comment. The 'Deltic' was derived by Napier from the Junkers Jümo 204 aircraft diesel engine under some form of license from Junkers. There are also a number of other opposed piston diesel engines, mostly for military applications, including the Leyland L60 (UK Chieftain Tank), Coventry Climax H30 (APU engine for the Chieftain), Rolls-Royce K60 (FV430 series armoured personnel carrier) and the Comma TS-3 truck engine. Some oil testing standards are based around testing using a TS-3 engine.
@markgoddard6364
Жыл бұрын
He mentioned the engine design lay dormant for 70 years but the British had an engine with opposed piston in the 1940s called the deltic, essentially a licence built jumo engine, and during the 1950s commer brought out a lorry with a 3 cylinder opposed piston engine , that had a single central Crankshaft with large rockers instead of dual crankshafts.
@DiHandley
5 жыл бұрын
Brilliant, straight up brilliant. Why isn’t this engine in all vehicles NOW! 👍. I’ll come and work for you for free! When do I start?
@walterrudich2175
4 жыл бұрын
Mr. Lemke died a year ago.
@cavemanballistics6338
4 жыл бұрын
WHERE does this name Achates Engine come from?
@DivineMisterAdVentures
6 жыл бұрын
Mainly skeptical on emissions - but hey - could devise a clean fuel - or run LNG or something.
@WilliamJones-Halibut-vq1fs
4 жыл бұрын
Sandia labs has developed a simple Bunsen type injector system that completely eliminates particulates and therefore allows concentration on NOX. In addition carbon neutral fuels such as Fischer-Tropsch diesel greatly reduces pollution. Also DME, OME and OME2 which can easily be made as carbon neutral PtL electro fuels from CO2 and hydrogen as well as from fossile feedstocks completely eliminate pollutants. This engine will be as efficient as fuel cells.
@keithchesworth9865
6 жыл бұрын
Nobody thought of it before....Interesting. Doxford, the main Marine Diesel from the 1930s to 1960's. B&W, Sulzer, even Cammel Laird Fulgar.
@rajkiranthomas3579
6 жыл бұрын
Im a 2 stroke lover. Please make this fast🙁
@jlo13800
8 ай бұрын
Get some Rotax 850 Etec turbo R engines and make a inline 6 out of 3 of them. Be sure to fab up a exhaust sleeve trapping valve and there you go for a 2 stroke F-150.
@Dave5843-d9m
4 жыл бұрын
The Napier Deltic diesel was a 1947 development of the Junkers opposed piston two stroke. Instead of two cranks and one row of cylinders, its had three cranks and three rows. www.dieselarmy.com/engine-tech/engine/significant-engines-in-history-how-the-napier-deltic-diesel-works/ used in fast boats and railway locomotives. In 2014, the British Diesel Air "Dair 100" 1,810 cc opposed piston two stoke made 100bhp. The
@Squeezmo
4 жыл бұрын
I taught, maintained and ran the submarine versions of this engine for years. The engine used on our older boats was even reversible. Air start: Start AHD - Run AHD - Stop - Run AST - Start AST. Truly elegantly engineered.... but why don't you use pipes for the cylinders instead of a cast block?
@stephenkeebler732
4 жыл бұрын
My friend babysat four of those Fairbanks-Morse engines in a Guppy-Conversion Sub in the Pacific during the mid 50s. He swore by those; always brought them back home...
@richardhince9764
7 жыл бұрын
This video would be a heck of a lot better without the background music...
@johnd5805
6 жыл бұрын
Music was perfect.
@phillycheesetake
6 жыл бұрын
@@johnd5805 Music is distracting and infuriating.
@johnd5805
6 жыл бұрын
@@phillycheesetake I usually don't like music in a video like this. But it was not loud or obnoxious in my opinion. So I didn't find it distracting but like I said I usually don't like music in a video like this either.
@jlo13800
6 жыл бұрын
I agree, put some klotz in those op 2 strokes
@lowspeed2000
6 жыл бұрын
I agree. Very distracting.
@Q_Channel1
9 жыл бұрын
Please make this come to market for GA airplanes! We need this desperately!
@rescue270
6 жыл бұрын
Q Wanna pay for one? Only reason GA can be affordable for anyone less than a multimillionaire is because of the old-school tried and proven designs that are available in the 40 and 50 year old airplanes that comprise the vast majority of the GenAv fleet. Only a fraction of a percent of GenAv owners and pilots can afford new airplanes and, of those, only a fraction can afford aircraft with new technology engines. Not nearly enough to make the research cost effective. That doesn't even consider the expenses of obtaining FAA approval for such machines. If the present vintage aircraft disappear, GenAv will all but disappear itself. There's nothing wrong with magnetos and carburetors or mechanical fuel injection systems. They are tried and proven, approved and dependable and we'll have to keep flying with them for a long time before anything newer becomes even remotely affordable for the average aircraft owner. Frankly, I really detest the idea of an engine that depends on a battery and alternator to keep running. Airplanes are not automobiles. In present required configurations the alternator can explode and the battery fall out of the airplane and the engine will keep running on it's magnetos as if nothing happened. I like that in an airplane.
@rolfpfeiffer9858
4 жыл бұрын
@@rescue270 Hi Hunter, I agree with you. Magnetos are good and safe, so are carburetors. However, Fuel injection should also be of high reliability. I am not sure what the FAA thinks about that. Do you have thoughts on that? Fuel injection avoid carburetor icing and no problem with the airplane's attitude. Perhaps a backup fuel delivery is needed in aviation? Perhaps just the fuel pump feeding the same injectors?
@udlrfbak
4 жыл бұрын
will this run on B100? also you might look into variable boost superchargers to replace the current twincharger system.
@TheBlibo
8 ай бұрын
Hi from the UK Not to seem derogatory why do you think the marine world has not gone opposed piston
@edmondmkasian6173
8 ай бұрын
3:58 hi doctor. How can i be part of your company.i was part engineers of sipa diesel paris dakar race team. I begging to be part of your team.i will prove my self. How can i talk with your hiring recruiter team. Please give this chance to me please. I had never given chance to design engine and use my talent in design team. Please help me
@OleDiaBole
7 жыл бұрын
Why not slaping on top of piston some asbestos sheets and on them thin stainles heat resistant sheet and completely stop heat apsorption by pistons? And there is your further boost of efficiency. For diesels you do not need to fear of superheated piston top.
@jhull7490
6 жыл бұрын
Ceramic coating
@mostlymotorcycles.
7 жыл бұрын
the problem with the commer engine is not one of fuel efficiency but one of upper cylinder lubricant. in order to get sufficient lubrication to the top of the piston and the upper cylinder, oil will inevitably blow out of the exhaust port this has been issued for day one and will continue to be so.
@nikolavonfulton5195
7 жыл бұрын
Don Knight not if it was built to be an horizontal engine like Subaru boxers engine
@peterzpictstube
7 жыл бұрын
Amen, I don't know how they will ever solve the issue, oil in the exhaust will keep it from passing emissions regs.
@paladin0654
Жыл бұрын
How does your engine differ from Fairbanks Morse engines?
@simon-pierrelarochelle4403
7 жыл бұрын
Very nice, but what about the jake brake ?
@liamcooper5202
6 жыл бұрын
Well thats simple, without the vavles you can not gave a jake brake. Engine braking can still be used as per normal though. And maybe with CR they can shut off the injectors and have engine braking on par with petrols.
@liamcooper5202
6 жыл бұрын
@richard mcmahon that was the lamest crap I have ever seen. You have now made everyone more stupid for having to read it.
@stephenkeebler732
4 жыл бұрын
This would work the same as on a conventional diesel engine: Butterfly Valve on the Exhaust controlled by a servo, causing exhaust pressure to go back through the ports and build up pressure in the cylinders; the Electronic controls on the fuel injectors would throttle back on the fuel. Not a problem to implement on this engine...
@martintaper7997
4 жыл бұрын
I wonder if the Orbital Engine Company's two stroke developments over many years could be useful with this engine.
@phillipcleaver7063
6 жыл бұрын
Sir; you are a clever man , but could you please consider taking a moment to examine an old british truck engine , built by the Rootes Group , & installed in their " Commer " lorries , it,s nickname was a "Commer Knocker " due to the sound it made , it was a horizontally orientated 3 cylinder , but 6 piston , opposed piston supercharged 2 stroke diesel . The crankshaft laid underneath the cylinders & at right angles to them , being connected to the pistons by individual simple oscillating linkages & con - rods . I knew a man who drove one for a living , this engine could run at a tremendous r.p.m. , but both screamed & gave off it,s rapid - fire knocking sound , I understand it was quite powerful , but suffered from rapid wear problems , the old guard truck drivers in this country could tell you far more about it than I can , I have never driven one , I,m not old enough ! I find engine developments interesting , thanks . Best Regards from England .
@MikkJogi
5 жыл бұрын
I'm glad to read your comments, as I too thought that the comment stating that "this type of engine lay dormant for 70 years" was not quite correct. With all respect to Dr. Lemke, I believe he simply does not know about the Commer TS3 diesel of the 1950's and 60's. The layout you stated is essentially correct; they used rocker arms to link the connecting rods to the single crankshaft underneath the horizontal cylinders. From what I have read, it had tremendous torque for its displacement and excellent fuel economy. Apparently Chrysler's purchase of the Rootes Group in 1967 killed the Commer TS3 and the upcoming larger TS4, as Chrysler had its own line of engines. I wish Dr. Lemke and Acates success with this venture!
@markg5713
4 жыл бұрын
@@MikkJogi Those Commer engines had variable compression ratio - a great benefit. As for this 'laying dormant for 70 years' - rubbish. Check out the K60 and L60 engines used in British fighting vehicles during the 60 through to the late 80's and, as someone else noted, the Deltic diesel too.
@rogeronslow1498
6 жыл бұрын
This is a fascinating video. I expect IC engines to be around for quite a long time to come so your company has lots of potential.
@jlo13800
5 жыл бұрын
thats what i want to know, whats taking it so long.
@walterrudich2175
4 жыл бұрын
@@jlo13800 The ICE engine is dead.
@jlo13800
4 жыл бұрын
@@walterrudich2175 All of my 2 strokes run just fine. Yes an electric motor makes huge power for its size as they are an electromagnetic 2 stroke with few parts and huge torque.
@walterrudich2175
4 жыл бұрын
@@jlo13800 So you are as well convinced that this engine has no market niche left.
@jlo13800
4 жыл бұрын
@@walterrudich2175 It does have a market if allowed to be produced. Today Etec (rotax,evinrude) fair banks morse, detroit diesel and EMD still have 2 strokes and cummins is now making the ACE op 2 stroke, i cant wait till these come out. i cant wait to find and evinrude/johnson v8 to tinker with.
@ryanrabe7184
6 жыл бұрын
This is a very durable engine....
@jlo13800
3 жыл бұрын
Drop a jumo 207 in a custom snowmobile!
@ericbraun4652
5 жыл бұрын
Fascinating. But @ 4:15... what about Detroit Diesel?
@rickbackous9750
2 жыл бұрын
20 years. Why is this technology not in trucks or SUV’s yet?
@keijimorita1849
6 жыл бұрын
If you guys make it a desaxe (offset crankshaft) you can increase efficiency even more. I wonder if you could simulate an Atkinson cycle effect by having a blower sucking on the exhaust.
@stephenkeebler732
4 жыл бұрын
They are doing that...
@keijimorita1849
4 жыл бұрын
@@stephenkeebler732 please show me the offset crankshaft
@PorcupinePantsMGee
6 жыл бұрын
Almost all major US auto companies have some kind of R&D with this engine right now.
@jlo13800
4 жыл бұрын
i though of making a mini deltic out of 3 mercury optimax stroke 3.2L 60 deg blocks! they are 3160cc so that gives 9480cc or 9.48L!
@daveThbfusion
5 жыл бұрын
3:23 . Similar to what happened to the original owner of our company a couple months after becoming the Head of the World company that had bought us out.
@jaws2858
4 жыл бұрын
American ingenuity as it gets. I love it.
@InBuckshotWeTrust
6 жыл бұрын
At 6:09 the guy is wearing a TRD shirt, does this mean Toyota is in on this project? Possibly a future engine they will offer in their vehicles?
@adriansandoval4015
6 жыл бұрын
Where can I buy the motor????
@walterrudich2175
4 жыл бұрын
What do you want to do with the motor?
@219cafe
4 жыл бұрын
Dr James Lemke, when do we see your engine on real life truck? I would think the cost of maintaining it would be much less than it currently is because of it having less parts, hopefully.
@PeterLawton
4 жыл бұрын
His obituary was dated February 22, 2019.
@ronbros
6 жыл бұрын
i was talking about this type of engine Jumo back 1979, again after reading history about it in aircraft diesel engines. i spoke highly about the design, to my students at Daytona BCh community college, NOW i wonder how many of them remember it! i said loudly that it will be the best ever for an I/C engine. of course the Brits talk about them ,by redesign Napier copied the technology, after the war and got hold of designs!
@rensaberson5860
6 жыл бұрын
I had the honor to work with Ludwig Elsbett. He started working at Juncker in 1937 ,he led the R&D . I have some veryy interesting literature about him.He started working at the opposted piston engine again in 1995. We tried to help him but he died in 2003. Mr. Lemke you finished his work. I"am very proud that you did that! You can contact me per mail so i can send you the info.( it"s in German) Best regards , Ron Aberson Netherlands ron@solaroilsystems.nl
@angusgillingham2323
4 жыл бұрын
Dr. Lemke, would you be interested in discussing an invention I am working on that fights/prevents out of control forest/wild fires. I’m looking for someone with your credentials to work with me in getting my invention/technology to a working stage. This technology is so badly needed ,as you would know, and needs to become a working model to save on the destruction of these fires. If interested I’ll send you the necessary info to get together on this.
@mohamedfarid7499
8 жыл бұрын
good job
@ouradventurousfamily
5 жыл бұрын
Awesome!!!!
@larrybrown9279
Жыл бұрын
Will probably replace a lot of engines in large aircraft because of the efficiency and the reliability Factor
@alext8828
4 жыл бұрын
Are we talking regular or ethyl?
@stephenkeebler732
4 жыл бұрын
Yes!
@Squeezmo
4 жыл бұрын
what drives the injectors?
@GIGABACHI
4 жыл бұрын
CP4 Pump................................nah, just kidding.
@stephenkeebler732
4 жыл бұрын
Electronic...
@thomaswinacott4785
Жыл бұрын
Need these in buses! 2 stroke have great heat !
@rwhirsch
6 жыл бұрын
if only this had been done 40...50 yrs ago. now it's like building a better incandescent bulb in the days of LED's. i guess it will still have military applications where fuel is king.
@dogphlap6749
6 жыл бұрын
+Robert Hirsch I was thinking the same only only wishing it had been done 20 or 30 years ago. The jet engine killed the market for this design in large aircraft and electric motors are set to do the same for road vehicles. Maybe there is still a chance for this in small aircraft where electric power just does not have the range (except for some special applications like flight schools) and marine uses where again electric power is range limited (except for some short distance ferries). Diesels are still used in diesel electric locomotives and large scale diesel electric earth moving equipment so they could benefit from this engine. I would love to know more as to how this engine is better than the Napier Deltic opposed piston two stroke diesel engine conceived in 1943 (originally for marine use but adopted in a big way for diesel electric locomotives) which I presume could also be improved by the application of modern computational fluid dynamics.
@krrk6337
6 жыл бұрын
Yes, but LED lighting is quite a big leap forward. On the other hand, battery technology is not going so far from 40 yrs ago.
@jlo13800
6 жыл бұрын
I hate LED bulbs and I got rid of mine anyways, BTW how much are we hung up on an over complex 4 stroke anyways, it’s done it time already.
@jlo13800
6 жыл бұрын
I can do with out all this overcomplex 4 stroke crap anyways. I always liked roller bearings and oil injection anyways
@ralfisbird
6 жыл бұрын
Wrong , is like building a better led , 4 stroke engines are bad efficiency , even turbines ... This is the more efficient engine of the world , read some more ...
@whatsup2310
4 жыл бұрын
Pay Attention: The video indicates Aramco is partnered with Achates. Achates must have patents on this type of engine. Without any Revenue, Achetes had to pledge something of value to get the investment . . . Hmmm. The real question is - When does it make business sense for Aramco to bring out an ICE that reaches 50% efficiency. Does the 50% ICE efficiency translate to vehicle efficiency? I don't know the efficiency of the avg ICE vehicle, so using some numbers from smarter people below, going from 30% to 50% is a 67% improvement in energy extraction with the equivalent reduction in [CO2; Revenue for ARAMCO, Consumer Expense] - Choose your favorite motivation. See that ARAMCO is in charge. When is the engine coming? I think Patents in the US have a life of 18 years.
@whatsup2310
4 жыл бұрын
Sorry - this was supposed to be posted on a different video
@alexpowers3697
7 жыл бұрын
They never talk of the shaft horsepower required by roots supercharger. It ain't free. The supercharger replaces the valvetrain in essence and enables 2 stroke operation.
@volvo245
6 жыл бұрын
Alex Powers The supercharger in this configuration only acts as a baseline to the gasflow at very low engine speed. Most of the air is provided by the turbocharger once it spools up. The gains from this layout far outweigh any parasitic losses caused by the supercharger. This is easily verfiable just by looking at the well proven jumo and deltic engines and their still impressive specific fuel consumption figures.
@jsj297
6 жыл бұрын
Alex Powers shut up.
@stephenkeebler732
4 жыл бұрын
@@volvo245 there are many engines today that don't come close to the BSFC of those 1930s Junkers Jumo 205s...
@volvo245
4 жыл бұрын
@@stephenkeebler732 LOL i'm pretty sure i typed that exact message at some point in the last 4 years. The 20x series is undeniable proof that opposing piston engines are amazingly efficient IC engines. I hope that of the various opposing piston engine ventures that now are trying to break through to the market at least one succeeds. The engine type needs more recognition and praise for sure. Sidenote: One of my favorite planes is the Dornier 26, relatively small flying boat (only 20 tons max at take off) that could travel from Germany to Brazil without refueling. Its a feat that for planes that size is rarely matched or exceeded even today.
@johnhenry1395
4 жыл бұрын
Maybe Cummins would partner in developing a working engine & bringing to market
@jeancadet5862
3 жыл бұрын
How much
@russellmarshall5288
6 жыл бұрын
Dr. James Lemke, I sincerely hope your engine is taken up by the major manufacturers. I have been a mechanic for over forty years and am fed up with the over complexity of the motor vehicle. Do you have a gasoline variant for cars ?
@josepeixoto3384
6 жыл бұрын
It's not the valves that complicate things; it's the people....the GOVs...
@ik04
5 жыл бұрын
That's exactly the same cylinder found in the Gemini Diesel aircraft engine. What became of it? Superior Air Parts don't answer my emails...
@abedalrzakmdrateabedalrzak5520
6 жыл бұрын
Dear gentlemen ... I have made motors system that is so simple and effective from this system more powerful and less gasoline consumption engines can be made it can manufacture two-stage engines without holes in the wall of the cylinder to prove that I have made a very simple engine .The parts of it: the length of the piston is 50mm and now it's 110mm without increasing the size of the consumption chamber this increase the power of the engine and makes it benefits more than the pressure resulting from the combustion process before the opening the exit valve. Of course ,this engine can not rotate without the system mentioned for watching the video note,the engine does not require a strong electric motor to start the rotation .The increase in engine speed when the increasing the amount of fuel .this proves that the engine works to reduce the mixture of gasoline and air . The system determines the different speedsof the car as desired by the driver without using the car brakes at the slopes. This system works well if the octane in the gasoline is low and this video proves it .I don't have the experience and equipment to complete this system and get the patent. Does the administration want to complete this system? ....thank you so much
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