Gemini Diesel aircraft engine from Superior Air Parts.
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- Опубликовано: 12 сен 2024
- www.mountvernon... - The Superior Aviation Group announced that the company has acquired the Gemini Diesel engine and has begun active development of the current engines, as well as planning the introduction of new models.
“Since the company’s inception, Superior Air Parts has grown on its ability to supply high-quality, fairly priced piston engines and components that meet the needs of our customers around the world,” Archer said. “Adding the new Gemini Diesel engine to our product family is just the next set in our continuing efforts to provide the right engine solution at the right time and price.”
Archer said that because of its unique, uniflow design featuring two-opposing-pistons-per-cylinder, the Gemini will be smaller than many current gasoline and diesel piston engines, giving it a significant power-to-weight ratio advantage and making it especially attractive to the experimental and LSA markets initially.
“There are basically two reasons why we chose to offer the Gemini Diesel to the experimental and LSA markets first,” stated Scott Hayes, Superior’s V.P., Sales & Marketing. “Number one was the fact that the 100-horsepower, Gemini 100 is much further along in its development cycle.”
“The second is that over the years many of the manufacturers of these kit and LSA aircraft have become dissatisfied with the current engine options and have asked us about developing a new-generation, alternatively fueled engine that delivers the same innovation, quality and value that is found in our experimental XP-Series and FAA certificated Vantage Engines,” he said. “Our commitment is to meet those goals and more with the new Gemini Diesel engine series.”
“We have already had preliminary discussions with manufacturers representing a variety of experimental and LSA aircraft,” Archer said. “The most common question everyone asks is; how soon can we get one?”
“We are very excited to say that the Gemini 100 is currently running in the test cell,” he said. “The engine is meeting all of our performance goals and right now we anticipate having pre-production engines within 90-days.”
About the Gemini Diesel engine.
The Gemini Diesel offers a number of advantages over current diesel and piston engines, including:
Jet A is a global fuel solution with better availability, quality, consistency and pricing
Operators can fly the same range as a standard engine on less fuel
High power-to-weight ratio
Highly efficient, two-stroke power
Higher engine torque at lower RPM
Projected to have up to 20% lower fuel burn than conventional engines
Mechanically simpler design, with fewer moving parts
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www.lightsporta... - Gemini Diesel aircraft engine from Superior Air Parts.
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The more I researched this motor the more I understand it's great attributes. This motor is SO smooth running because with the 2 cylinders coming together in the middle to create the compression for ignition the fuel burn occurs in the middle of the motor( not outside corners like in conventional 4 stroke motor layout which cause vibration) . Also when the two pistons are pushed outward from the center during the power stroke cycle the outward piston cranks shafts act as true counter balance shafts which make this motor a truly super smooth running motor at any RPM.
This motor is a masterpiece of an older design refined with new technology in design and metals.
Pair that up with a Risen and I bet you get a cruising speed (75% power) of 200 mph and 3.5 GPH !!! MAKE IT HAPPEN !!!
Previous examples of this design.
Napier deltic 36 pistons 18 cylinders.
Coma knocker ts3
Junkers
And many old ship diesels as well.
Main issue is noise for truck application and the Napier deltic was very difficult to over hall
Wish we could buy these. Especially Turbo 125 hp.
6 years later? Still in development....
Never went into production.
Their website went 404. How does an amazing, apparently proven engine design go from being mounted and nearly ready for FLIGHT tests, with a number of variants in development, to being wiped off the map?
There are lots of reasons, but the main one is that over 80% of the existing pilot population actively work to destroy anything new and different. They seem to have different motivations, but the result is pretty homogeneous. Everything different from what they know is decried as suspicious and dangerous and foolish because what they have used for years is good enough.
Of course, by modern standards what they will all agree is the safest aircraft and best trainer is by modern standards a proven death trap at least twice as likely to kill the passengers as it ought to be but it’s still being legally made in the USA.
A Cessna 172 with a Commer 'knocker' engine. Now that would be interesting! A bit nose heavy but definitely interesting.
Wow a 2stroke diesel too??? Nice!!!!
So many great designs but so little money to make them happen.
Still holding out hope for this one....
This is such a great concept of an engine, what is holding it back?
Likely the same reasons that have always held innovation back
Opposing piston engines are like a brain fart.
They say it has 30% less parts, but that is true by numbers of parts only.
In reality the second crank shaft out weighs the weight of the valve-train by about double or more.
Opposing piston engines are a bad idea and that is why they never got off the ground in any application.
End of 2018 and the website link is inactive for this engine. Any update available, been stalling for this engine release.
Great News. I'm guessing this is a development of the Weslake Diesel from the UK...Well done gents!
I believe Westlake developed this engine some time ago, before they built their own one.
As of October 2016, nothing has emerged as a production item. The website makes no effort to set an availability timetable. Perhaps development is more daunting than they are prepared to admit.
I don't think they've even flown a prototype yet.
Doesn't need to be FAA certified for the homebuilt market. "Experimental" means you can do anything you want, and good luck to you.
"Development more daunting than they care to admit. "
Quite common in aircraft engine development.
The Germans did this arrangement in the 1930s and 1940s.
Piston engine development pretty much stopped with the emergence of turbines.
Dave M Agree piston engines have not progressed much. The timing and turbine explanation makes sense but now that we have proven advanced piston engines in automotive I feel companies should be coming back to the market.
Has anyone heard from these guys in 2018?
Sooo a Jumo 205 but with 3 cylinders
When you read revolutionary design for a 80+ year old design, just walk away.
see the m134 minigun for example, a new take on old tech
Most of our v-8 engines in automotive are just such a thing. Redesigned 80 year old engines.
James Atkinson invented opposite opposed when Queen Victoria was still empress of India
There is noting New about a 2 stroke diesel engine - GM ( General Motors) built -tens of thousands of them from the 30s untill the 80s and I'm sure you could probably get one today if you made a special order -they put a small 471 in a machine they built in the early 70s it has a intake air cooled thru a intercooler type system that goes into a Blower, then it had twin turbochargers on the Engine, each 2 cylinders had it's own small turbo, the engine would be way to huge and heavy for aviation -because it was built big and tuff on purpose for the application -but the same engine could be built for GA use and it would produce probably 225 HP and have a TBO of 4000 hrs -all out of a aluminum block and heads on a water cooled inline 4 cyl -all this could be done with the smallest amount of R&D on the part of a person that wanted to build the next generation GA, LSA, & EXPERIMENTAL Aircraft engine, with a low amount of money for the investment -to in my opinion be producing flight ready engines in less than 2 yrs, and what would take the whole industry by storm, would be this type and amount of HP and the reliability of this Engine for the "COST" I would bet when you get it all done and go into production -you could make a good profit and sell the engine for under 10 K -once the news got around -you couldn't build them fast enough -and your (engine) name would be more common in aviation then LYC, & CONT, I wish I could find a backer because I would put everything I own on the line - and in 5 yrs I would be a multi millionaire -or someone will - remember the saying - BUILD A BETTER MOUSE TRAP AND THEY WILL BUY IT -that's your answer
US army used 2 stroke before. Detroit diesel was making 2 stroke tank engines .
WWII there Was a German Diesel Bomber with that engine design the goal was to reach the US
Where is it?
It's a 1950s Commercial Knocker used in British lorries.
It sounds as if it is well suited to a larger higher pitch prop and wont suffer when you roll back the throttle.
WWII Engine - Junkers Jumo 205 same principle.
Light weight, high output engine that can be mounted vertically this screams to be out on a outboard motor
Col79 Sounds like a great test platform and experience builder. Could also go for air boat drive
2 stroke OP
Well. Five years later. No engine. ‘Still in development. Major, major bummer. What is going on here?
Might be emissions treatment
2 crankshafts
so great, may its more wonder on airboat, but it isn't cheap for a diesel engines.
Too good to be true
Germans did that 70 years ago. Check JUMO 205 2 stroke diesel aviation engine...
He said that about 1:20.
um... do aircraft engines really need much torque anyway?
Fun to see this in 2021. Where is the Gemini? Vaporware. Dead. Buried.
Did anybody see this Gemini running ? The one in the video is for sure not running , and I believe it is the only one who exist . And why this cylinders look exactly like the ones I use ?
high priced leaded fuel wont be missed..
how is the ring wear over those holes ?
It's not a problem.
I had a 40 foot bus with 2 stroke diesel Detroit 6V92, Supercharged and Turbocharged.
Great engine.
Is it feasible for a Challenger II rear pusher two seater?
Bruce Adams Has anyone heard from these guys in 2018?
What is the progress on this engine?
Is currently not in production.
4 gal / hr ? ..Hellooo Eco Diesel here I come .
200 POUNDS! IF THEY COULD ONLY MAKE ONE AROUND 120 POUNDS THEN THEY WOULD CHANGE THE FACE OF LS AVIATION.
fantástica configuración del motor y es genial que puede usar Bio-diesel saludos de México
What happened?
The majority of aircraft piston engines are made out of aluminum, except for the crankshaft which is steel and is the bulk of the weight, if Im not wrong this engine design has two crankshafts, Im just saying.
So your saying it doesn't have cylinder heads, no valves, no camshafts, so therefore is lighter.
And you are correct, it is the lightest design of all for a diesel engine.
A comparable 'normal' diesel engine with one crankshaft is 290lbs, a VW/Audi 1.4 liter, 3 cylinder with 90HP, look it up.
Don't guess things.
OG Flyer. Correct,no valve train,camshaft.2 Pistons share each cylinder so a 3 cylinder engine has 6 pistons,34% fewer parts PLUS 2 stroke power delivery.
The original engines of this design were huge train & tank powerful motors.It makes sense to shrink lighten it.
Two crankshafts, two crankcases. Plus a large gear train to tie them together. Lubrication and cooling issues?
Six pistons, six big ends, I can see how you might think it's twice the weight, but it's not.
Want to put it on a motorcycle.
so is the engine going to cost $20,000.00 which would be ridiculous. You can develop an engine like this for under $10,000.00 than it will be a game changer.
A new Rotax 850 etec sells much less than that and produces much more power, hell and a mercury or OMC 2 stroke v6 makes tripple the power and is cheap. this OP motor does not make much power for its size.
The advantages would be fuel burn, universally available Jet A fuel, and (presumably) turbo or super-charging. (Performance at altitude would be better than the Rotax.)
There are advantages and disadvantages to diesel.
Zoch diesel engines were in development for well over 10 years and the engines that were built were fantastic but they have never come to market.
@@jlo13800 just remember that Diesel engines make a flat rate hp but LARGE amounts of torque throughout the entire rpm range. You ever notice how a new Ford or Ram diesel truck only makes about 440 hp where the Camaro make 650..But the trucks make 1000 plus lb ft of torque vs 650 for the gas. A diesel acft engine also take a different prop to compensate, etc. its just different not that its not capable.
I really hope at this COST for this New Design motor the final Propeller gearing can be ordered for a MUCH LOWER and more efficient RPM like maybe 1800 rpm ( MAX). The lower RPM will reduce propeller NOISE increase efficiency ( more thrust per horsepower at the same MOTOR RPM). I do not want a NEW motor design using the terrible high RPM of a typical inefficient Continental Propeller. Come on Guys you are almost there pls get it wright for ALL of your customers needs. LESS RPM MATED WITH THE CORRECT PROPELLER = MORE THRUST PER HORSE POWER ! It's like free increased power just by lowering the RPM.
Because it has dual cranks it'll require gears to turn a prop shaft, and I would imagine they'd offer different reduction ratios. (If they're smart.)
Ray Dreamer r
Gostei
Commer beat you to it about sixty + years back.
You might need some good ear muffs too.
German design, that's laughable. U.S. Fairbanks-Morse opposed piston diesel that predates WW II, used in U.S. diesel-electric locomotives, and then the entire powertrain was used in U.S. submarines. No disconnecting, mechanical shifting between diesel and electric propulsion as with German subs. The Brits had their Napier Deltic triangle 2-stroke opposed piston diesels.
Sell company to VW. They know how to put this on the market.
Way too heavy for an Ultralight.
If they are close to flyer specs they do weight wise compete with the rotax up to the 914 model.
Wow are you kidding??
30% less moving parts.. smaller, lighter, less complicated... twice as expensive.
Opposing piston engines are like a brain fart.
They say it has 30% less parts, but that is true by numbers of parts only.
In reality the second crank shaft out weighs the weight of the valve-train by about double or more.
Opposing piston engines are a bad idea and that is why they never got off the ground in any application.
@@VeggiePower303 They aren't a bad idea. the second crankshaft, you must remember that it is not very large. its still only 3 cylinders, so the crank shaft will be comparable to that of an inline 6 cylinder.
Sad ! good idea never got off the ground ! (GREED) We need a new company to take over this project . They sure disappointed all of us but we are all used to being disappointed . Believe it when you see it folks !
Ron Lawson this has so much potential, so sad that it fizzled.
Commer root.s knocker engine noisy copy
not gonna happen.