Stop stressing, your English is cool. Keep up the good work.

This is a fascinating design. It looks like a pretty good design for 2 stroke applications like chainsaws and lawnmowers. Cheap to produce, light weight, it has a lot going for it. Especially as a diesel which takes advantage of the compression ratio whilst also lubricating the engine. In a larger application I do think it would need a radiator, the same way most normal engines need a radiator as power increases - more heat produced as power (and volume) is increased whilst surface area grows at a slower rate (exponent of 2/3). Still, its a cool concept which comes at a really good time. A small efficient engine to charge hybrid cars makes for a significantly lower CO2 output compared to dragging a massive weight of expensive batteries around everywhere. A turbocharger seems to defeat the point of the engine though, ruins its compression ratio, ruins its cooling, ruins its small size, ruins its cheap price, etc. Also the English was fine. Sure there's an accent and there were a few spelling mistakes/typos but its not anywhere bad enough that people need subtitles. Anyone who skips the video is missing out for sure.

I agree that if seals for the Wankel can be done the same technology should be useful on the liquid piston. I have a German friend who worked for some years in a lab in Germany on development of the Wankel seals. At the time she told me the development team became concerned they would not succeed. Every time they overcame and issue, it would introduce, or make worse another. As the Masda engine proved, they did eventually archive a useful solution, after some years. I have had another look at the film and your captions really need cleaning up. For instance "well this" appears as wedding, "column" appears as kolum, bugil I could not work out, "music" =musik, "say this" =sadis, wankel=bengkel, so=SOHC, bisa I could not work out, jingle cover, and doang I could not work out. These are just examples from the first few minutes. I am not being personal. A second language can be hard to master. I lived in Taiwan in the 1960s and my Mandarin was terrible despite my efforts. You do acknowledge this when you suggest turning on the captions. The problem is, sometimes it is easier to understand your accented speech rather than the captions, which appear to have been done with a computer, "speech recognition" program. You should get them cleaned up. Sometimes the facts you are presenting are completely missed because the captions do not help, but confuse. Best Wishes. Kent

It has promise, the combustion camber is better than in Wankel, being able to be better shaped at full compression but it rapidly opens to a higher surface area than in a traditional piston engine providing rapid quenching of combustion to a more extreme extent as the round cylinder engine. I'm not so sure the required oiling is the issue you think it is, I think the oil has to be introduced separately, likely wicked in, to ensure it gets to the right place and isn't combusted. 2 strokes typically run 1 part oil to 50 parts petrol in the engines with better surfaces. If you aren't burning the oil, you need far less of it. Mixing the oil with the fuel and using fuel injection is really setting yourself up for failure because it's assuming dirty combustion with no completion. In a carburettored two-stroke, we assume this because there is poor cylinder evacuation after power stroke and the oily fue rins over crank case and then the cylinder as it mixes with exhaust remnants. If the combustion completes, there's no oil left. I like that the seals can be contained reasonably well. Side seals rotate and the apex seals equivalents are static. It's not true that the combustion ratio can't be easily changed. As an inventor myself, here's a full public disclosure of something that's obvious to me: The designed in combustion chanber can be a plunger in a recutangular void. Stepper motors and geared drive can operate the plungers with screw threads. Very easy stuff. A bit like the old modeller compression engines that were started with ether and had a winder to set the optimum compression ratio. So you see the idea isn't even new, it's just a different combustion chamber plunger shape and with engine smarts to set compression just below where knock-pinking would occur. Regarding manufacture, it's quite possible. Would require some custom finishing tools to get the right arcs with dimensional accuracy but with 3D printing techniques in wax like materials and even directly into metal, the roughing stage is very easy these days. The simplicity of the engine crank case suffers a bit for multiple stage with radial breathing arangements for exhaust and induction but it's no big issue. Also a win over the Wankel, is the housing has much more even thermal range due to the combustion being spread over 3 inner lobes of the housing. Less warping to deal with! You would not leave the intake ducting open though. People like quiet engines. All that end routing of induction and exhaust would be routed radially to allow for universal stator component stacking end to end, with 6 side manifolds to deliver filtered air and to release exhaust.to a muffler.

Liquid Piston is a very good design. It is small, it is simple. So it could be made into a black-box that could be easily replaced. Say, the engine could run for x- revolutions, in say, 2 years life-span. Fine, just pop it out and replace with a new one in ten minutes. One can even store a spare engine in the car in case the engine fails.

CURVES make a difference in reducing friction. It’s nature.

Very nice engine with many possible applications, I look forward to see more about this in the future.

You definitely don't need to apologize for your English. Most of us native English speakers mangle our own language. Plus the fact that the majority of us don't bother to learn a second language. Nice presentation, Ta, very much appreciated.

This seems to be a great engine for small/yard working.

Part-Part was my favorite part. 😀

I just discovered your channel. Really in formative. I appreciate your hard work to produce these videos. Your english is great, so don't worry about that. Great job! New sub!

It was difficult to understand the narrator. But I got through it with the details and and diagram video. Thanks. This looks good. Considering investing.

Wow amazing you did a great job with the graphics this is one of the engines of the future the other engine is a boxer two Pistons per cylinder opposing each other

Yes, I need an engine with some punch in my motorcycle and don't want a 300Kg machine to wrestle. This could be the solution I've been waiting for.

Soo a six rotor would essentially be an 18 cylinder!!! 😮 and weigh as much as a v6.

One beautiful feature of this engine is the combustion heat is spread out to 3 areas, on a Wankel it concentrated in one spot. Heat is a major enemy of engines.

Great video. Just the tech. explanation I was looking for. Many thanks 👍

If they get air in and out wear spark plugs are ,,,could use sleeve valve around entire outside of it.. no more need for premix..slightly more complex.. but gotta be smoth and efficient

nice video, keep it up 💪💪💪👍👍👍

It's clever, but how is it lubricated? Oil in the fuel the same as a 2 stroke? In which case it will be bad for emissions.

you english is much, much better than the auto translate! Thanks for sharing this with us

Pretty thorough explanation of the basics. You never did tell us why it was called a "liquid" piston engine.

The efficiency of an engine is „output energy“ over „input energy“. To make it easier „input power“ is often measured in ml or gramms of fuel. It is never „engine power“ over „engine weight“, that named „power-to-weight ratio“, so very literally the calculation formula. The engine allows higher compression ratio, which gives a better theoretical thermal efficiency, same applies to the smaller surface and better geometry of the combustion chamber. There is still the gas exchange controlled by „slots“ w/o a „variable timing“ option and the mixing of lubricant and fuel, which is an emission issue. But it will keep the small size and high revs from the Wankel for maybe an other decade in Japanese sports cars.

This is a great breakthrough, due to its small size. What is the large fan blowing air into the motor for? Is it for cooling, or compressing the air intake? If so: this fan is out of date. There is a more efficient one, which comprises & channels a better flow. Which will be used on drones, ships & aeroplanes.

This is a beautiful video. I really love your animated illustrations. It would definitely benefit from a different narrator for the English version though. If you need someone to narrate videos I would be willing to audition. Really cool though. Thanks for sharing.

An amazing concept. I wonder if having several pistons in line and minaturisation of this could be used as a compression ignition (Diesel) impellors for radio controlled 'jets'.. Castor oil/ethanol can be used as Diesel fuel. Vroom! Nice one. 🌟👍

Liquid piston is hard to block in the bigger units and is bigger and heavier than comparable Wankel. Rotor is heavier and harder to cool, exhaust and intake within it are very challenging. Additional cooling air need to be filtered together with air used for induction, and has pressure of exhaust gases. Hence blower is needed. Asymmetric thermal load of housing in the Wankel is exchanged into asymmetric thermal loading of the rotor. The amount of injectors and spark plugs is tripled. The only practical solution is one rotor configuration, and two rotor configuration (with shared exhaust or intake is imaginable.

Mantap pak bagus kamu kasi explanasi. Good job.

It's really great it uses the four-stroke cycle . with three combustion Chambers rotor the oval rotary engine

4:25 and 10:05: Eccentric Shaft; Counterweight Mass--4:47: How It Works--5:27: Eccentric Shaft--5:49: Exhaust Port--6:29: Compression--11:00: Forced Induction--11:11: Liquid Piston Engine

Seals will be a problem, they held back the Wankel for years and many millions in development. You should have your sub-titles reviewed. They appear to be done by computer, which listening to your accent, has invented, or wrongly used words. You do have an accent, but it was clearer listening than reading. Much of the sub-titling is useless.

I'd love to see it replace 2-stroke compact generators

This engine appears to have similar problems with the radial and axial seals as the Wankel. As a result, the problems with the emission classes can be seen. The inlet looks limited by the eccentric shaft. Super-/turbocharging and air filtration become complex in this design. The present design only allows the combination of a maximum of 2 rotors.

I think this engine would be great for hybrid electric car ,this engine could generate the electricity to charge the super capacitors and batteries instead of plugging it in .the liquid piston engine would run for a short period of time to generate the power needed and if the batteries run Low you could run the generator to run the electric motors the efficiency would be very high .to meet the air quality regulations you introduced with the fuel mixture heated vaporized gasoline in small quantities it will burn all of the hydrocarbons in the chamber increasing its ability to pass the EPA regulations creating a regulatory system for the vaporize gasoline should not be that difficult heating the gasoline in a system like Mr. coffee capillary heat system ,vaporizing the fuel quickly and efficiently you do not need much of this vapor to burn the hydrocarbons and all of the liquid fuel , after the compression cycle and detonation would be complete.

What is the latest version of this motor in diesel!. Thank-you!.

it isn't the successor to the Wankel until it becomes a commercial success. I wonder if side porting with Rotax style intake discs would be better than through he shaft and piston for the intake and exhaust?

Good as motorcycle engine!

Your English is great. 👍👍 Great video.

2:43 DE VEL LOP MENTHHHHHH bro development 4 sylables xD

lol I don't think you can turbo charge an engine like this where the exhaust is open on both ends for cooling. And supercharging also seems like it would be difficult with it's intake design, but probably possible. I would think more Doritos chambers would be used to meet power needs before trying the boost. :-P But still a very cool design!

With the high power to weight ratio I could see something like this being used to power a small aircraft. Another advantage would be that a plane with this type of engine could be run off of jet fuel which would simplify fueling operations.

Exhaust gasses running through the rotor, same rotor the intake is running through, that will likely nullify all the other positive aspects.

I am here bro😂😂😂 I'll subscribe your chanal, and stay for watch. Amburadul kunci inggrisku 😂😂😂😂

We have pretty much mastered the internal combustion engine and forced induction /turbo charging and engine management running on various different fuels anywhere from propane diesel hydrogen gasoline e85 alcohol just take a look at f1 engines like the honda with its titanium headers glowing purple at 15000 rpm now we will figure out electric cars next and master that!

Throttling an Archimedes rocket engine is done with electric motors powered by lithium polymer batteries. Throttle control is critical at max Q. Seems liquid piston could do the job with better weight and power density.

I also cannot see how one would "stack" the engines together considering the way the intake and exhaust passages must be run .. I also see cool intake air running alongside hot exhaust gas.. this would hurt efficiency

How do you cool the rotor and deal with differential expansion? Isn't one side of the rotor always hot?

I want one on a motorcycle lol.

For Wankel engine though it can produce plenty of horsepower and RPMs the torque ratio is low how is the torque on this engine?

It should be called the over rotary three combustion Chambers per rotation per cycle

Hi. This is the engine I was wondering about. The point that the housing is hard to wear. If the air supply and exhaust equipment is installed on the housing side (similar to the conventional reciprocating engine), oil film scattering can be prevented. It's an idea that gives me hope.

This is very interesting, I'm going to try and look up some cad drawings... My application would be for an external combustion engine design. Should be able to utilize the sparkplug ports for both "intake" and "exhaust", eliminating the "ice" intake and exhaust paths shown.

Deepfake AI voice will help this channel immensely.

Semangat🔥🔥

Increasingly, automobiles are going to battery power, partly because governments are requiring it. There are good reasons for that, but there may still be a market for this engine. It seems to me it would be excellent for light airplanes.

Great video 🙏

Me want some Doritos now😋

Thanks a lot ✌️✌️✌️✌️ Great job !

Can somebody explain me that What is the difference of this design in terms of the problematic oil burning failure that Wankel motor had. and resulted in the ban of Wankel engines cause of the pollution its make from it. I love rotary engines and just wish they fix the oil-fuel mixture problem in the future, is this promising in that point of view

How big in litres, can this motor get, diesel version!.

Are you Indonesian??? Your accents sound like Indonesian...

When might this engine be available for the public!.

I like how piston engines are having another development process they are not obsolete like these pro electric eccentrics want to make out

How do I replace my engine in my lawn tractor with this engine. Can it run vertical? My engine 25hp. If I were you I put these on push lawn mower and sell a bunch and see how they last.

You can called ut rotary engine😁

How is it lubricated!.

everything is under development, but pistons are indeed the easiest to understand and are still the choice of motorcycle manufacturers... pistons have also been proven to be easier in development

So Wankel engines also need a 2-stroke gas mixture? Must be hard for Mazda to clean those oily exhaust gases

Is there a Super Charged version!.

I wonder how this would do as a light aircraft engine. 100 octane leaded aviation fuel would seem ideal.

how they can add more rotors with this design of exhaust ?

Could this be perfect for a steam powered generator? Just close off the fuel and airintake, put a injector in the sparkplughole.or would a teslaturbine be better?

Is that three combustion Chambers in each combustion chamber has the four-stroke cycle

interesting design. same issues as the wankel though, apex seals, emissions, oil burning and longevity.

Where do I buy one?😮

the power doesn't seem to be pushing as strongly as does a normal piston.

What about lubrication inside the wall.

How do they work with eachother? In case you need More HP? Is it ignition at same cycel?

It would be better if Arabic was added!

It looks to me like you made the rotor stationary and move the rotor housing spin around it. The seals will fail prematurely just like a wankel. I have a RX8 and there are things you can do to correct the wankle Rob Dahm is probably the person who knows these engines best. He has a driver that reliably makes 2000hp and 900ft torque. Everyone said that was impossible but he did it using common sense and it worked.

I think if you want more capacity, you'd just make it bigger.

it will need a counterbalancing weight to stop shaking itself to pieces

Fictional design at it's best.

👍

Why is it called liquid piston?

Torque. Any mention of torque?

How would you add more rotors when the spark plugs are on the side? The rotors would have to be very far spaced apart.

Not able to seal it and lubricate it as a piston engine is the problem that can't be overcome.

Meant to say what these guys are calling a so-called liquidpiston engine is nothing more than just a common rotary engine, except they put a new title in front of the name-"liquid"

I dub thee "The Circle Jerk"

I still think you can make the two-stroke cycle engine the smallest

Same issues like Wankel: lubrication residue is burnt, exhaust will not be clean. Combustion engine end is set for 2035, no development without improvement makes any sense.

Does it burns oil?

It looks like the fan is turning in the opposite direction of the rotor

where can i buy one for my bicycle? ;)

With the power to weight ratio this engine has it would make a nice monoplane military drone motor but why is it called "liquid piston".

Sarich Orbital Engine Same kind of problems.

ok this engine is epic use "the piston" for intake and exhaust the gas

4 HP/ 2 Kg = 2 HP / Kg. Was it hard ?

It does not look like you can stack it like a wankel engine.