@SADDLEHORN1A1 all engines are very different, depending on their displacement and cylinder configuration. If you look at the cycles of a typical piston engine, the piston has to come to a complete stop when it reaches TDC, and also when it reaches BDC. All those pulses can be smoothed out by adding more cylinders, but then there's the issue of more weight, frictional losses, and of course, more fuel. An engine like the one in the video has less frictional losses, and constantly rotating parts.
@heavydutydan You missed a few very important points. Although, the objects in this machine do not start and stop, their speeds vary. Just because that variation does not include the value zero, it is just as bad as if it did. Imagine you spin a piston engine so that the pistons move in sort of a circle to see.
This machine has more moving parts and more baring surfaces than a normal crank based engine. It has more friction not less.
@2tourVet Think of the crank in an ordinary crankshaft based engine. Look at the part that comes in at 0:33. This is basically a crank. If you imagine yourself rotating with the average rotation of the engine, the shafts of those cranks will remain still from your point of view and the crank action will move the pistons back and forth. The pistons will not strike each other. They stop just short of that and then move back apart.The high forces are on the cranks not the piston head
@VYXtreme I have no doubt that this idea is not really new. Lots of bad ideas have been around for a long time. There are good reasons that a crank and pistons is the most common way to get the job done.
@tld5500 It will need some flywheel but not a lot. It gets 8 power strokes per rotation. The average of all the mass has a reasonably constant rotation rate so the mass its self will tend to work as a flywheel. The forces on the mechanical parts will be quite high but at low rates of rotation nothing that can't be done.
Constant speed genny engines do have have heavy flywheels. This, with 8 pulses per rev needs none. The revolving mass is flywheel in itself.
This engines is not a scam like seen in the US, with a web site asking for money - "investors" they call it. This is well funded and a part of a "real" hybrid car project that is to be a reality. They are not asking for your money.
i could see RUSSIANS diong it , but i still dont get where it gets compression , you need compression to burn the fuel good (i know you can burn it without it ) but even still without compression the power cant be transferred
So where does the stick go into the engine? All i saw was the black cap at the end of the engine without any shaft extending from it. Doesn't a shaft need to go out of the engine so that the shaft can be attached to something like the wheel so that the engine can spin the wheel to make the car move? Where is the engine main shaft?
@tupolev12 So where does this engine get it's power from? Does it use gasoline or diesel fuel? Is that the glow in the back or is it some alien technology we've never seen before? Looks very cool by the way.
@FishBowl911 It is supposed to be a gasoline engine. I doubt that it will ever be produced because really it wouldn't be very good one if manufactured. The sealing issue will kill it.
But 1/4 of the size & weight and far more power pulses per revolution will more than compensate for any blow-by. It will be run at a constant optimized speed.
Yes such generator to electric motors system is well known on ships (for example the Queen Elisabeth II), railway engine, heawy transport vehicles,etc...and the Chevrolet Volt...
@FishBowl911 This type of engine only runs reliably at a set speed,they are unable to rev up and down like a standard engine.Because of this the engine is used to drive a generator which produces power for electric traction motors.This type of system is still prohibitively for use in expensive road vehicles due to the cost of all the additional components such as,batteries,motors,controllers etc.
@silver760 The issue you bring up is an important one. I think that the "constant speed" claim is just the result of the designers noticing that they have a huge problem. The same motions can be done without the resonant frequency of the mechanism being so low. It would mean a different mechanical design than the one shown here and it would still have all the other problems but the rather low RPM limit set by the thing destroying its self above some speed could be solved.
@knowledgemonger The design of this engine and similar ones such as the MYT engine all suffer from very low resonant frequency problems.This is mainly due in part to the design of the mechanism that creates the motion for the opposing "Pistons".The MYT engine is the only one I have seen running on compressed air and the vibration was tremendous.Despite all the advertising for the MYT engine I have never seen film of one actually running on combustible fuel.I would imagine the
@silver760 addition of the fuel combustion cycle would create even more unwanted vibration which would become worse as more volatile fuels are used.Apparently they will run on diesel though as with ordinary CI engines the knocking would be horrendous.Video of the MYT engine reveals more of the gear train and linkages used to create the required motion.Although heavily built it's longevity is very questionable.Good idea,different,but impractical and awkward to manufacture.
@silver760 The vibration could be reduced by having twice as many chambers, 2 intake and exhaust ports and two sets of spark plugs. Then adding a complete second engine running out of step would remove the bulk of the remaining. At that point, however, you would be better off with just a crank and some pistons. The thing would be fairly massive.
Looks great in theory, but I doubt you'll ever see it on a main stream vehicle for two reasons. First: Like the wankel, it looks like the combustion chambers would be a nightmare to achieve a reliable seal. Second: the cost to manufacture, the toroidal combustion chamber and pistons would be very costly to machine accurately, not to mention the mechanical system at the rear. Other than that, it looks great
@NearAbbeyRoad So did Ralph Sarich's Orbital engine and that was back in 1972 and we are still waiting, and he was backed financially by BHP. He had problems with cooling the pistons which is another problem I see with this motor.
The Orbital engine was 40 years ago and nothing like this engine. The pistons get cooled. The RVE engine is so small, light and efficient that they can afford some blow by. The view of Audi in assessing a small Wankel running at its high revving, constant speed, sweet spot for a range extender. This promises far more than a Wankel. It is NOT directly connected to the wheels, unlike the poor Chevy Volt. GM should have used the Lotus designed engine. Now the yardstick has been raised
@NearAbbeyRoad This promises far less than the wankel. It will be harder to do the seals. It will be harder to cool. It has far more moving parts. All around, it has more practical problems than a wankel. It will produce less power per pound than a wankel. The wankel engine's RPM limit is determined by where the rotor goes into mechanical resonance. This engine will have a much lower resonant frequency because of the masses of the pistons being on the outside edge.
@NearAbbeyRoad No, it will be very hard to cool. Look at the design and think about the heat flows. How does the heat get out of the piston. The guys who are trying to sell the idea tell you it works. They tell you it makes lots of power. I have a nice bridge I will sell you.
It promises far more. The Russians said they have cracked it with working models in cars. Resonance does not matter as the engines is designed to be run at a constant speed. The speed is set to the ideal "sweet spot"
As it has far more pulses per rev it will be far better than a Wankel, which as a constant speed range extender is superb as well.
@NearAbbeyRoad Like I said "it promises less". The people trying to sell folks on the idea are promising more than the mechanical design really supports. It will be hard to cool. It won't be able to run at the speeds the Wankel does. It will have leaking seals. It is mechanically more complex than a Wankel and those mechanical parts have to be very strong and hence heavy. It is a dead end.
@NearAbbeyRoad No, it is you who doesn't understand. You have "stars in your eyes". I have explained the problems. It will be harder to seal than a Wankel, harder to cool than a Wankel and only able to withstand lower RPMs than a Wankel. It is a bad mechanical design.
BTW: Understanding this sort of stuff is how I make a living.
@DGeorgeR I'm sorry I'm so sceptical, I've seen so many disappointments. Like the bicycle, when Otto invented the reciprocating internal combustion engine, after 130 years we have only managed to refine the principal, the basic designs remains the same. But Russia has a remarkable history of engineering with innovative designs with the minimum of resources, if anyone can do it they can. I do sincerely hope your right and I'm wrong and I'll look forward to you telling me so.
BUILD IT!!!!!!!!! shit on all other car companies, you will be hated at first but this has the potential to dominate! no valve train power transfer losses.
@smackout It has all that mechanical stuff to make the funny rotation motions. This will be more loss than a valve train. That is only a small problem compared to the huge one with the sealing. There are more sliding seals than a Wankel. It has a lot more moving parts than a Wankel. Really it has no advantage over engines we already have.
Superb mechanimation but there will be a few probs as far as I can see. 1/ Lubrication, looks like it will use a similar lube arrangement as a Wankel, which means emissions, carbon and wear 2/ Servicability. Wouldn't want to a/ strip it and b/ repair it ! That couldn't be rebored or have non OEM parts fitted. Problem free rotary combustion engines are the holy grail !
"Besides Mazda and their Wankel engine, no one seems to be taking rotary engines seriously in cars"
It is NOT a Wankel. Which lacked development. But it is used in cars, helicopters, etc. Wankle has a good power/weight ratio (small) - Audio are looking to use one as range extender in a hybrid.
It was an okay video but it went by a little to fast and it didn't rely explane how it worked it just explaned how to put it together and what it can do in the world other then that I gave it a thums up. :)
@echo41911709 Right at 0:58, you can see the sparkplugs being added. They appear to be just ordinary sparkplugs. They would have to be set back to keep the piston from striking the tip as it goes by. This would be another seal problem. The rings would have to go past them and maintain the seal.
@knowledgemonger oh! ok I see. thanks, yeah the whole thing is a great idea but as you said it would have sealing issues. but, being just a hole in the side of the cylinder couldn't hurt anything, it wouldn;t do any more wear than the ports in a 2 stroke.
@echo41911709 In the 2 stroke engine, the piston is well away from the ports when combustion happens. In this thing it crosses the sparkplug area with the combustion happening.
@knowledgemonger yes but considering that there is only 2 spark plug holes, compared to the size of the average 2 stroke ports, the area that the ring goes past is not that dramatic.
@knowledgemonger huh, we meet again. I was commenting on another video about this engine that it seems like it would have the thermal management problems of a wankel engine. I also kinda thought that the ignition timing would have to be static, which isn't desirable at varying engine speeds. I don't know to what extent.
@htomerif The engine has bigger problems than the thermal one but the thermal does become a problem at some point. The timing could be set for the speed the engine runs most of the time. That would really be a smaller problem than the thermal. To cool it, you would have to pump a lot of oil through passages in the moving parts.
@alka1ine I does have a lot of parts but try taking a car engine apart sometime and counting. They also have a lot of bolts. A bigger problem is that this thing has a huge number of moving seals on the combustion chamber. On a normal engine, you really only have piston rings sliding while combustion happens. On this thing, you have all that rotational money motion too.
@knowledgemonger Yeah, I was being a little sarcastic. It just seemed crazy that there seemed to be similar amount of bolts as my old 3 piece mesh wheels. I've taken apart my VW and BMW's engines before and there are nowhere near that many.....that doesn't mean it's a bad thing.
I get why they're there, I was just thinking maybe there could have been a more efficient way since I also got my degree in computer animation and sometimes help my friend design products like this.
@NearAbbeyRoad No matter what you do, the pistons must not allow the gasses to go past from the combustion area to the area where there is not yet combustion. If the gases get by, the engine won't work right.
The seals deal with the rotation will be a bigger problem.
The designers have stated (or rumoured) that there are no seals and they have got it to work - the pistons are cupped. They have running engines and they state it is ready for mass production. We must them the benefit of the doubt - and then wait and see.
@NearAbbeyRoad If the designers have said there are no seals, they are liars or that is a bad translation (more likely). The cupped Pistons don't solve the problem. It has to keep the combustion contained on all sides. The pistons are on a rotating arm that moves within an non-rotating body. The joint between the rotating part and the non-rotating must be sealed. All in all, it look like the design is not practical. It certainly has no advantages.
@dinnerandashow There really is very little advantage to the rotary engine. The Wankel and all like it have trouble with the seals. They produce more power per pound but not as much more as a turbine. That funny Australian one that looked like an eccentric gear pump looked the best if only they could keep it cool. In terms of power per pound it beat the Wankel and it only had sliding seals like a Wankel.
@knowledgemonger, "There really is very little advantage to the rotary engine. The Wankel and all like it have trouble with the seals"
Seals on Wankels have been fixed 40 years ago. The Russians designed one with easily replaceable seals in the engine body. Power/weight is superb. Running at a constant speed at their "sweet spot" they are very efficient - AND SMALL.
@knowledgemonger, " That funny Australian one that looked like an eccentric gear pump looked the best if only they could keep it cool"
The Sarich Orbital engine had a few problems - but nothing some R&D and modern synthetic oils could overcome - things have changed since 1972. Ralph Sarich is one of Australia's richest men. He could now put some of his billions into the R&D, but I believe Ford were involved in the licensing and kept it down, so this engine maybe in limbo.
@NearAbbeyRoad If the Sarich engine was really better, chances are, we would see it in production. The cooling issue is not a trivial matter. Because the rotors confine the combustion, that is where the bulk of the heat goes. This means that you have moving parts to cool. Because the heat production per unit volume is many time greater, even if they were not moving, you would need some serious engineering to cool the parts.
@NearAbbeyRoad LOl a charge of being naive from someone who obviously doesn't understand the problem. The cooling idea you suggest won't carry away anywhere near enough heat.
@NearAbbeyRoad LOl a charge of being naive from someone who obviously doesn't understand the problem. The cooling idea you suggest won't carry away anywhere near enough heat.
LOl a charge of being naive from someone who obviously doesn't understand the problem. The cooling idea you suggest won't carry away anywhere near enough heat.
@NearAbbeyRoad LOl a charge of being naive from someone who obviously doesn't understand the problem. The cooling idea you suggest won't carry away anywhere near enough heat.
@dinnerandashow I have lots of ideas but also lack the time to go after them all. This is a problem that inventive people often have so don't feel alone.
The heads of the two opposed cupped pistons meet each other. The majority of the power of the explosion is kept within the two cupped pistons. Even if compression is lost via the sides of the pistons the vast majority of the explosion has been put to good work forcing the two pistons apart.
@NearAbbeyRoad The seals are not about keeping merely the majority of the explosion contained. Even an extremely small leakage from the combustion area into the charge coming up onto compression will be a very bad thing. A small leakage from the combustion area into the area of the mechanical workings will be a bad thing. The two cupped pistons do virtually nothing about this. They do not seal against each other. Really they have very little practical effect.
Такой двигатель может и заработает, но по эффективности будет уступать обычному поршневому в 5 раз. Называется придумали но не исследовали. А е мобиль это сказки для быдла.
@samandllamas It is way too mechanically complex but if you average together the masses, the average of them is rotating at a constant speed. The ones on the far side balance the ones on the near side. There would not be a huge vibration. There would, however be a lot of leakage on the seals between all those moving parts. There is a much simpler way to do this. It is a wonder that they didn't think of it. Oh well.
@soulxtr какой образец)) Слышал про сайт сколково? На него вделили около 150000 тысяч рублей. Сайт делался ровно год. Через несколько часов после открытия и-город.ру взломали и выложили все в интернет. Цена движка сайта - 65$. По сайту даже нет стандартного поиска. ГДЕ ДЕНЬГИ, ВАСЯ??
@danialphaomega I think that it would work, just not very well. The combustion has a very large number of seals to try to leak past. There is a lot of mechanical stuff vs the amount of combustion. The forces on the parts will be huge if you try to run it fast. All in all pistons going up and down works better.
too bad it doesn't work. the 2 sets of pistons would be pushing each other backwards. it needs to somehow only be allowed ot move forwards but it isn't happening. there isn't any ratchet anywhere to stop them from going backwards.
While I find the use of an internal combustion engine in the hybrid platform a bit absurd, the Engine itself is quite fascinating.
I say ICE is absurd because the point of a hybrid is to achieve the highest possible fuel efficiency. Since your efficiency can never be greater than the peek efficiency of your prime mover, they should be focusing on the most efficient engine available.
I suggest investigating a Beta type Stirling Motor with integrated linear and rotary alternators.
i don't think the pistions actually collide, , It's still a 4-stroke cycle by the looks of it, so on ignition one pistion comes around and just before it stops, the fuel-air mixture is ignited and the force drives the still piston while the other one comes to rest, either that or the compressed air can't be compressed any further and drives the other piston, fascinating, Very high rpm possible i think with this design
@gaffney92 I'm not exactly sure you can call it a 4 stroke. I'd say its a single stroke, because it inhales, compresses, fires, and exhausts simultaneously in one action.
@gaffney92 Also, the spark ignition system is pointless as the compression ratio is clearly too high to have fuel introduced before the TDC. The compression ratio, by my estimate, would between aprox 25:1 and that will auto ignite all conventional fuels.
@volodymyrm1 The type of engine (sans hybrid crap) is capable of woopin the ass of any linear piston engine. This engine will have made 16 power stroke by the time your v6 made 6. That means this Engine has 10 more power strokes than you engine.
@volodymyrm1 My point was to be as snarky to you as you were to this video. It was also to point out the Bold display of Ignorance in your statement.
The Rotary Vane Engine is a remarkable revolution in ICE technology. With as much as 4x power density compared to traditional linear piston engines they have the potential to make cars even more fuel efficient without compromising on performance.
@OpinionsofDave you're really putting efforts in your smart ass responses sorry i am not genius like you are i am sure your parents were proud when you turned 16 and finally able to stop using diapers, made your first elbow macaroni and super glue picture at 18, you must an idiot if you are trying to calculate compression ratio from the animation ">15:1 compression" rotary vane engine is a piece of shit why KERS developed in 2009 is already been put into public cars and rotary vane isn't?
@thano111 A two stroke engine has 1 power strokes per revolution, retains 20-40% of the exhaust gasses, and burns lubricant along with the fuel. This motor has 4 power strokes per revolution, fully vents each chamber, doesn't require lubricant be to be added to the fuel.
The accoutrement of gears are absurdly over sized, so the engine can be greatly reduced in size. Greatly increasing the power density of the engine. But in their defense this video is a concept model meant for demonstration.
I've seen the American version of this engine a while ago installed and driving a car. Its called the MTY Engine and variations of this engine have been around for quite some time now. Good job on the video!
the thing about this stuff is that your adding alot of extra weight because now you need to have a generator and electric motors on top of the icce engine
so is it more than an engine, cause in the animation it seems that the black part is a built on electrical generator, and that the transmission is also built in it, so it is to produce electricity and not direct torque the way it was shown in the assembly animation right?
from what i can see, the pistons, or whatever they are called in this engine, seem to clash and bump each other at each stroke, how is that i good engine? it wouldn't last 5 minutes in the real world without smashing itself to pieces
i dont get the idea for this engine, what characteristics does it have that is differant from Wankel, 'V', 'Straight' 'Flat', 'Rotary' Engines?
@oldkid1231 I think that they didn't show the exact motion of the rotary items. Obviously they would have to stop short of hitting each other. The compression ration only should be perhaps 10 to 1. This would mean there would be enough room to prevent hitting. I don't see any great advantage to this engine design either but for a different reason. It appears that the engine is quite large for the displacement and yet hard too cool.
@knowledgemonger Speaking as someone that has hands on experiences with rotary vane motors (namely the MYT), the pistons do not strike each other, but rather both sets are in continues motion. They come to a tight compression, this one appears to be a >15:1 compression by the video. With such high compression the spark plugs are unnecessary.
Lub is not a problem because the angle of stress is rotational rather than linear on most parts, and the oil is also used to pull waist heat out.
@OpinionsofDave I didn't suggest that the pistons would strike each other. You have my comments confused with someone else on that. At 15:1 or higher, a diesel becomes workable but this engine appears to have spark plugs although it is hard to tell from the video.
As for lube not being a problem, it will be about as big of a problem and in a normal piston engine. Not a serious one but something that must be attended to. The sealing issue is likely to be a bigger one.
@jpyz450f the assembly on the back. As it spins the pin-arm correlation of the arm controlling the "back" piston (stationary) is set so that the force is "radially parallel" to the rotational axis, via our knowledge of statics if the the arm is oriented in line with the rotating axis no rotational force is created (no motion). Its like the back piston is at BDC. Thats why the rear gear/arm section is so beefy...it essentially holds the combustion chamber in place.
бля это не венкель.
afh723 1 day ago
where is the starter? i bet that generator at the end was as a starter too?
andrewmylyf 1 day ago
So what's the point? I see no advantage over any other piston driven engine.
SADDLEHORN1A1 3 days ago
@SADDLEHORN1A1 all engines are very different, depending on their displacement and cylinder configuration. If you look at the cycles of a typical piston engine, the piston has to come to a complete stop when it reaches TDC, and also when it reaches BDC. All those pulses can be smoothed out by adding more cylinders, but then there's the issue of more weight, frictional losses, and of course, more fuel. An engine like the one in the video has less frictional losses, and constantly rotating parts.
heavydutydan 3 days ago
@heavydutydan You missed a few very important points. Although, the objects in this machine do not start and stop, their speeds vary. Just because that variation does not include the value zero, it is just as bad as if it did. Imagine you spin a piston engine so that the pistons move in sort of a circle to see.
This machine has more moving parts and more baring surfaces than a normal crank based engine. It has more friction not less.
knowledgemonger 2 days ago
One instance of bad timing in this engine and you're fucked.
TheSimbaExperience 4 days ago
Отличный дизайн и видик
Andronizer 1 week ago
I am just curious about how the "hammer" effect is mitigated on the crankshaft when the pistons end their "free swing".
2tourVet 1 week ago
@2tourVet Think of the crank in an ordinary crankshaft based engine. Look at the part that comes in at 0:33. This is basically a crank. If you imagine yourself rotating with the average rotation of the engine, the shafts of those cranks will remain still from your point of view and the crank action will move the pistons back and forth. The pistons will not strike each other. They stop just short of that and then move back apart.The high forces are on the cranks not the piston head
knowledgemonger 1 week ago
looks very big and heavy
tm868686 1 week ago
This exact design originally patented in France by en Engineer by name of Fillols
VYXtreme 1 week ago
@VYXtreme I have no doubt that this idea is not really new. Lots of bad ideas have been around for a long time. There are good reasons that a crank and pistons is the most common way to get the job done.
knowledgemonger 1 week ago
@knowledgemonger some of the abandoned ideas aren't bad, they just needed material technology to catch up. Just a thought
TheLastOutpost 1 week ago
пиздец, тут по другому и не скажешь )
Anubis7309 1 week ago
I love the idea, it is original. I wonder how much flywheel is required to keep it running smoothly, if any at all
tld5500 2 weeks ago
@tld5500 It will need some flywheel but not a lot. It gets 8 power strokes per rotation. The average of all the mass has a reasonably constant rotation rate so the mass its self will tend to work as a flywheel. The forces on the mechanical parts will be quite high but at low rates of rotation nothing that can't be done.
knowledgemonger 2 weeks ago
@knowledgemonger
Constant speed genny engines do have have heavy flywheels. This, with 8 pulses per rev needs none. The revolving mass is flywheel in itself.
This engines is not a scam like seen in the US, with a web site asking for money - "investors" they call it. This is well funded and a part of a "real" hybrid car project that is to be a reality. They are not asking for your money.
NearAbbeyRoad 1 week ago
@knowledgemonger Thanks for taking the time to write a thoughtful reply. I appreciate that you can explain it in layman's terms
tld5500 1 week ago
Put the engine to the ultimate test -the oilfields running on well head gas
chuckbear1961 2 weeks ago
This looks a lot like the MYT engine... isn't it?
samoht1977 2 weeks ago
@samoht1977
Which is an old design dating from 1910.
NearAbbeyRoad 1 week ago
i could see RUSSIANS diong it , but i still dont get where it gets compression , you need compression to burn the fuel good (i know you can burn it without it ) but even still without compression the power cant be transferred
aterack833 2 weeks ago
In soviet Russia, Engine Builds ITSELF
megafailgod 2 weeks ago 27
So where does the stick go into the engine? All i saw was the black cap at the end of the engine without any shaft extending from it. Doesn't a shaft need to go out of the engine so that the shaft can be attached to something like the wheel so that the engine can spin the wheel to make the car move? Where is the engine main shaft?
FishBowl911 2 weeks ago
@FishBowl911 It turns a generator which powers electric motors. So there is no direct connection between the engine and the wheels.
tupolev12 2 weeks ago 5
@tupolev12 So where does this engine get it's power from? Does it use gasoline or diesel fuel? Is that the glow in the back or is it some alien technology we've never seen before? Looks very cool by the way.
FishBowl911 2 weeks ago
@FishBowl911 It is supposed to be a gasoline engine. I doubt that it will ever be produced because really it wouldn't be very good one if manufactured. The sealing issue will kill it.
knowledgemonger 2 weeks ago
Comment removed
NearAbbeyRoad 2 weeks ago
This has been flagged as spam show
@knowledgemonger
But 1/4 of the size & weight and far more power pulses per revolution will more than compensate for any blow-by. It will be run at a constant optimized speed.
NearAbbeyRoad 2 weeks ago
@tupolev12
Yes such generator to electric motors system is well known on ships (for example the Queen Elisabeth II), railway engine, heawy transport vehicles,etc...and the Chevrolet Volt...
leneanderthalien 6 days ago
@FishBowl911 This type of engine only runs reliably at a set speed,they are unable to rev up and down like a standard engine.Because of this the engine is used to drive a generator which produces power for electric traction motors.This type of system is still prohibitively for use in expensive road vehicles due to the cost of all the additional components such as,batteries,motors,controllers etc.
silver760 1 week ago
@silver760 The issue you bring up is an important one. I think that the "constant speed" claim is just the result of the designers noticing that they have a huge problem. The same motions can be done without the resonant frequency of the mechanism being so low. It would mean a different mechanical design than the one shown here and it would still have all the other problems but the rather low RPM limit set by the thing destroying its self above some speed could be solved.
knowledgemonger 6 days ago
Comment removed
silver760 6 days ago
This has been flagged as spam show
@knowledgemonger The design of this engine and similar ones such as the MYT engine all suffer from very low resonant frequency problems.This is mainly due in part to the design of the mechanism that creates the motion for the opposing "Pistons".The MYT engine is the only one I have seen running on compressed air and the vibration was tremendous.Despite all the advertising for the MYT engine I have never seen film of one actually running on combustible fuel.I would imagine the
silver760 6 days ago
@silver760 addition of the fuel combustion cycle would create even more unwanted vibration which would become worse as more volatile fuels are used.Apparently they will run on diesel though as with ordinary CI engines the knocking would be horrendous.Video of the MYT engine reveals more of the gear train and linkages used to create the required motion.Although heavily built it's longevity is very questionable.Good idea,different,but impractical and awkward to manufacture.
silver760 6 days ago
@silver760 The vibration could be reduced by having twice as many chambers, 2 intake and exhaust ports and two sets of spark plugs. Then adding a complete second engine running out of step would remove the bulk of the remaining. At that point, however, you would be better off with just a crank and some pistons. The thing would be fairly massive.
knowledgemonger 5 days ago
@FishBowl911 In this illustration, the shaft connecting to a generator, but it could just as easily operate a pump, or boot to a transmission.
OpinionsofDave 1 day ago
Looks great in theory, but I doubt you'll ever see it on a main stream vehicle for two reasons. First: Like the wankel, it looks like the combustion chambers would be a nightmare to achieve a reliable seal. Second: the cost to manufacture, the toroidal combustion chamber and pistons would be very costly to machine accurately, not to mention the mechanical system at the rear. Other than that, it looks great
DGeorgeR 2 weeks ago
@DGeorgeR
They say it will and have manufacturing deadlines.
NearAbbeyRoad 2 weeks ago
@NearAbbeyRoad So did Ralph Sarich's Orbital engine and that was back in 1972 and we are still waiting, and he was backed financially by BHP. He had problems with cooling the pistons which is another problem I see with this motor.
DGeorgeR 2 weeks ago
@DGeorgeR
The Orbital engine was 40 years ago and nothing like this engine. The pistons get cooled. The RVE engine is so small, light and efficient that they can afford some blow by. The view of Audi in assessing a small Wankel running at its high revving, constant speed, sweet spot for a range extender. This promises far more than a Wankel. It is NOT directly connected to the wheels, unlike the poor Chevy Volt. GM should have used the Lotus designed engine. Now the yardstick has been raised
NearAbbeyRoad 2 weeks ago
@NearAbbeyRoad This promises far less than the wankel. It will be harder to do the seals. It will be harder to cool. It has far more moving parts. All around, it has more practical problems than a wankel. It will produce less power per pound than a wankel. The wankel engine's RPM limit is determined by where the rotor goes into mechanical resonance. This engine will have a much lower resonant frequency because of the masses of the pistons being on the outside edge.
knowledgemonger 2 weeks ago
@knowledgemonger
Easy to cool. It is designed to run a at constant speed. Russians say they have cracked it.
NearAbbeyRoad 2 weeks ago
@NearAbbeyRoad No, it will be very hard to cool. Look at the design and think about the heat flows. How does the heat get out of the piston. The guys who are trying to sell the idea tell you it works. They tell you it makes lots of power. I have a nice bridge I will sell you.
knowledgemonger 2 weeks ago
@knowledgemonger, " I have a nice bridge I will sell you"
Who ddi you buy it off?
NearAbbeyRoad 1 week ago
@knowledgemonger, "This promises far less than the wankel."
It promises far more. The Russians said they have cracked it with working models in cars. Resonance does not matter as the engines is designed to be run at a constant speed. The speed is set to the ideal "sweet spot"
As it has far more pulses per rev it will be far better than a Wankel, which as a constant speed range extender is superb as well.
NearAbbeyRoad 1 week ago
@NearAbbeyRoad Like I said "it promises less". The people trying to sell folks on the idea are promising more than the mechanical design really supports. It will be hard to cool. It won't be able to run at the speeds the Wankel does. It will have leaking seals. It is mechanically more complex than a Wankel and those mechanical parts have to be very strong and hence heavy. It is a dead end.
knowledgemonger 1 week ago
@knowledgemonger, 'Like I said "it promises less"'
You are a not very bright tiring fool.
NearAbbeyRoad 1 week ago
@NearAbbeyRoad I explained the problems. You are the fool for not understanding them and buying hook line and sinker the claims.
Have a nice day
knowledgemonger 1 week ago
@knowledgemonger
You clearly do not understand his engine.
NearAbbeyRoad 1 week ago
@NearAbbeyRoad No, it is you who doesn't understand. You have "stars in your eyes". I have explained the problems. It will be harder to seal than a Wankel, harder to cool than a Wankel and only able to withstand lower RPMs than a Wankel. It is a bad mechanical design.
BTW: Understanding this sort of stuff is how I make a living.
knowledgemonger 1 week ago
@knowledgemonger, "Understanding this sort of stuff is how I make a living."
Try harder.
NearAbbeyRoad 1 week ago
@DGeorgeR I'm sorry I'm so sceptical, I've seen so many disappointments. Like the bicycle, when Otto invented the reciprocating internal combustion engine, after 130 years we have only managed to refine the principal, the basic designs remains the same. But Russia has a remarkable history of engineering with innovative designs with the minimum of resources, if anyone can do it they can. I do sincerely hope your right and I'm wrong and I'll look forward to you telling me so.
DGeorgeR 2 weeks ago
bravo c'est bel moteur !
MultiMohamedsami 2 weeks ago
Страшный железный геморой, маленкая полезная часть и большоий тяжолый вспомогательный механизм.Классический поршневик лучше.
chekvit 3 weeks ago
BUILD IT!!!!!!!!! shit on all other car companies, you will be hated at first but this has the potential to dominate! no valve train power transfer losses.
smackout 3 weeks ago
@smackout It has all that mechanical stuff to make the funny rotation motions. This will be more loss than a valve train. That is only a small problem compared to the huge one with the sealing. There are more sliding seals than a Wankel. It has a lot more moving parts than a Wankel. Really it has no advantage over engines we already have.
knowledgemonger 3 weeks ago
reminds me of the myt engine hmmm
trudgechr 3 weeks ago
Superb mechanimation but there will be a few probs as far as I can see. 1/ Lubrication, looks like it will use a similar lube arrangement as a Wankel, which means emissions, carbon and wear 2/ Servicability. Wouldn't want to a/ strip it and b/ repair it ! That couldn't be rebored or have non OEM parts fitted. Problem free rotary combustion engines are the holy grail !
turboslag 3 weeks ago
@turboslag looks like it will use a similar lube arrangement as a Wankel lol...
YSBCITTAR 3 weeks ago
Amazing "toy"! It does realy work?
EmilMarius1960 3 weeks ago
Whats estimated horse power / fuel/minute ratio?
MaximillieN7 3 weeks ago
за анимацию 5, а за идею неуд. суперяво конечно собрали генератор. так красиво ещё никто не рекламировал тупо генератор.....
Tsairiht 3 weeks ago
OH MY GOD! this is so boring
BvEHouten 3 weeks ago
OK Well done. Now go and build a real one!
hardmanners 3 weeks ago
reminds me ironman
akillas77 3 weeks ago
fire+Russions=Oh no
chevyman123truck 4 weeks ago
Besides Mazda and their Wankel engine, no one seems to be taking rotary engines seriously in cars.
dinnerandashow 1 month ago
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@dinnerandashow
"Besides Mazda and their Wankel engine, no one seems to be taking rotary engines seriously in cars"
It is NOT a Wankel. Which lacked development. But it is used in cars, helicopters, etc. Wankle has a good power/weight ratio (small) - Audio are looking to use one as range extender in a hybrid.
NearAbbeyRoad 1 month ago
This motor is a copy of the MYT engine
nanotope 1 month ago
@nanotope
"This motor is a copy of the MYT engine"
It is NOT. The design dates from 1910. The British BSA bike company had a working prototype in 1955.
NearAbbeyRoad 1 month ago
ok, show orking prototype instead of animation. 3dstudio-likesoftware is able to visualize everything...
105bogus 1 month ago
And that's how you build a rail gun
hazyazn 1 month ago
ok powering an airplane, that i refuse to believe ;D
mistbooster 1 month ago
Great, another combustion engine lol
EthrFused 1 month ago
Finaly another FREE ENERGY prototype, FUKK BIG ENERGY monopolies....lol
vormanator 1 month ago
This has been flagged as spam show
@vormanator
"Finaly another FREE ENERGY prototype, FUKK BIG ENERGY monopolies....lol"
You are barking mad.
NearAbbeyRoad 1 month ago
what are you waiting for, just buld it and be on world prime!
215alessio 1 month ago
Прохоров, не на*бёшь.. Мы википедию то читаем :D
SoaTiger 1 month ago
must take forever to build them!
ts5111 1 month ago
It was an okay video but it went by a little to fast and it didn't rely explane how it worked it just explaned how to put it together and what it can do in the world other then that I gave it a thums up. :)
1995peters 1 month ago
I didn't get the ignition process :/ would it have detonators on the rotors and it uses the same principal as a brushed motor?
echo41911709 1 month ago
@echo41911709 Right at 0:58, you can see the sparkplugs being added. They appear to be just ordinary sparkplugs. They would have to be set back to keep the piston from striking the tip as it goes by. This would be another seal problem. The rings would have to go past them and maintain the seal.
knowledgemonger 1 month ago
@knowledgemonger oh! ok I see. thanks, yeah the whole thing is a great idea but as you said it would have sealing issues. but, being just a hole in the side of the cylinder couldn't hurt anything, it wouldn;t do any more wear than the ports in a 2 stroke.
echo41911709 1 month ago
@echo41911709 In the 2 stroke engine, the piston is well away from the ports when combustion happens. In this thing it crosses the sparkplug area with the combustion happening.
knowledgemonger 1 month ago
@knowledgemonger yes but considering that there is only 2 spark plug holes, compared to the size of the average 2 stroke ports, the area that the ring goes past is not that dramatic.
echo41911709 1 month ago
@echo41911709 The pressures are a lot higher in this case.
knowledgemonger 1 month ago
@knowledgemonger I still think its a great design.
echo41911709 1 month ago
@knowledgemonger huh, we meet again. I was commenting on another video about this engine that it seems like it would have the thermal management problems of a wankel engine. I also kinda thought that the ignition timing would have to be static, which isn't desirable at varying engine speeds. I don't know to what extent.
htomerif 1 month ago
@htomerif The engine has bigger problems than the thermal one but the thermal does become a problem at some point. The timing could be set for the speed the engine runs most of the time. That would really be a smaller problem than the thermal. To cool it, you would have to pump a lot of oil through passages in the moving parts.
knowledgemonger 1 month ago
I think there are more nuts and bolts in this thing than both of my cars combined...
alka1ine 1 month ago
@alka1ine I does have a lot of parts but try taking a car engine apart sometime and counting. They also have a lot of bolts. A bigger problem is that this thing has a huge number of moving seals on the combustion chamber. On a normal engine, you really only have piston rings sliding while combustion happens. On this thing, you have all that rotational money motion too.
knowledgemonger 1 month ago
@knowledgemonger Yeah, I was being a little sarcastic. It just seemed crazy that there seemed to be similar amount of bolts as my old 3 piece mesh wheels. I've taken apart my VW and BMW's engines before and there are nowhere near that many.....that doesn't mean it's a bad thing.
I get why they're there, I was just thinking maybe there could have been a more efficient way since I also got my degree in computer animation and sometimes help my friend design products like this.
alka1ine 1 month ago
@knowledgemonger
They are talking about no sealing on the pistons. The pistons are cupped.
NearAbbeyRoad 1 month ago
@NearAbbeyRoad No matter what you do, the pistons must not allow the gasses to go past from the combustion area to the area where there is not yet combustion. If the gases get by, the engine won't work right.
The seals deal with the rotation will be a bigger problem.
knowledgemonger 1 month ago
@knowledgemonger
The designers have stated (or rumoured) that there are no seals and they have got it to work - the pistons are cupped. They have running engines and they state it is ready for mass production. We must them the benefit of the doubt - and then wait and see.
NearAbbeyRoad 1 month ago
@NearAbbeyRoad If the designers have said there are no seals, they are liars or that is a bad translation (more likely). The cupped Pistons don't solve the problem. It has to keep the combustion contained on all sides. The pistons are on a rotating arm that moves within an non-rotating body. The joint between the rotating part and the non-rotating must be sealed. All in all, it look like the design is not practical. It certainly has no advantages.
knowledgemonger 1 month ago
@knowledgemonger
Well, not yet. But maybe someday rotary engines will become practical.
dinnerandashow 1 month ago
@dinnerandashow
The Wankel's efficient "sweet spot" is at high revs, so suitable for a constant speed range extender in a hybrid.
NearAbbeyRoad 1 month ago
@dinnerandashow There really is very little advantage to the rotary engine. The Wankel and all like it have trouble with the seals. They produce more power per pound but not as much more as a turbine. That funny Australian one that looked like an eccentric gear pump looked the best if only they could keep it cool. In terms of power per pound it beat the Wankel and it only had sliding seals like a Wankel.
knowledgemonger 1 month ago
This has been flagged as spam show
@knowledgemonger, "There really is very little advantage to the rotary engine. The Wankel and all like it have trouble with the seals"
Seals on Wankels have been fixed 40 years ago. The Russians designed one with easily replaceable seals in the engine body. Power/weight is superb. Running at a constant speed at their "sweet spot" they are very efficient - AND SMALL.
NearAbbeyRoad 3 weeks ago
@knowledgemonger, " That funny Australian one that looked like an eccentric gear pump looked the best if only they could keep it cool"
The Sarich Orbital engine had a few problems - but nothing some R&D and modern synthetic oils could overcome - things have changed since 1972. Ralph Sarich is one of Australia's richest men. He could now put some of his billions into the R&D, but I believe Ford were involved in the licensing and kept it down, so this engine maybe in limbo.
NearAbbeyRoad 3 weeks ago
@NearAbbeyRoad If the Sarich engine was really better, chances are, we would see it in production. The cooling issue is not a trivial matter. Because the rotors confine the combustion, that is where the bulk of the heat goes. This means that you have moving parts to cool. Because the heat production per unit volume is many time greater, even if they were not moving, you would need some serious engineering to cool the parts.
knowledgemonger 3 weeks ago
@knowledgemonger, " If the Sarich engine was really better, chances are, we would see it in production"
Do not be so naive.
NearAbbeyRoad 3 weeks ago
@NearAbbeyRoad LOl a charge of being naive from someone who obviously doesn't understand the problem. The cooling idea you suggest won't carry away anywhere near enough heat.
knowledgemonger 3 weeks ago
This has been flagged as spam show
@NearAbbeyRoad LOl a charge of being naive from someone who obviously doesn't understand the problem. The cooling idea you suggest won't carry away anywhere near enough heat.
knowledgemonger 3 weeks ago
This has been flagged as spam show
@NearAbbeyRoad
LOl a charge of being naive from someone who obviously doesn't understand the problem. The cooling idea you suggest won't carry away anywhere near enough heat.
knowledgemonger 3 weeks ago
@knowledgemonger
Cooling can be air cooling through the centre core of the engine. Synthetic oils can do the rest.
NearAbbeyRoad 3 weeks ago
This has been flagged as spam show
@NearAbbeyRoad LOl a charge of being naive from someone who obviously doesn't understand the problem. The cooling idea you suggest won't carry away anywhere near enough heat.
knowledgemonger 3 weeks ago
@knowledgemonger
I have some ideas... unfortunately I lack the lab.
dinnerandashow 2 weeks ago
@dinnerandashow I have lots of ideas but also lack the time to go after them all. This is a problem that inventive people often have so don't feel alone.
knowledgemonger 2 weeks ago
@knowledgemonger
The heads of the two opposed cupped pistons meet each other. The majority of the power of the explosion is kept within the two cupped pistons. Even if compression is lost via the sides of the pistons the vast majority of the explosion has been put to good work forcing the two pistons apart.
NearAbbeyRoad 1 month ago
@NearAbbeyRoad The seals are not about keeping merely the majority of the explosion contained. Even an extremely small leakage from the combustion area into the charge coming up onto compression will be a very bad thing. A small leakage from the combustion area into the area of the mechanical workings will be a bad thing. The two cupped pistons do virtually nothing about this. They do not seal against each other. Really they have very little practical effect.
knowledgemonger 1 month ago
Такой двигатель может и заработает, но по эффективности будет уступать обычному поршневому в 5 раз. Называется придумали но не исследовали. А е мобиль это сказки для быдла.
monowaring908 1 month ago
i bet listening to those pistons slap on each other at the end of the exhaust sounds awesome :)
dzuari 1 month ago
Best mechanical animation that I've ever, ever seen.
megghegg 1 month ago 55
@megghegg You and me both.
Ring112NU 1 month ago
It would be funny if in the video near the end if it showed it in a Lada Samara as a demostration
Samqdf 1 month ago
that must cause major vibrations in the car. unless it has a syncroniser with at least 2 spinning "pistons" it wuld be like a how a phone vibrates
samandllamas 1 month ago
@samandllamas It is way too mechanically complex but if you average together the masses, the average of them is rotating at a constant speed. The ones on the far side balance the ones on the near side. There would not be a huge vibration. There would, however be a lot of leakage on the seals between all those moving parts. There is a much simpler way to do this. It is a wonder that they didn't think of it. Oh well.
knowledgemonger 1 month ago
@knowledgemonger thanks for explaining that made more sense
samandllamas 1 month ago
Йоб-мобиль. Вы только что посмотрели видео, на которое ушел ВЕСЬ бюджет проекта. На сам мобиль денег не осталось
negatiff54 1 month ago
Russians.
chevyman123truck 1 month ago
the darkest hour
TOPRAKALPAY 1 month ago
great animation
TtimWh 1 month ago
i see u will need some screws :>
urLauPo 1 month ago
kann mir schon vorstellen wie der mechaniker nach dem zusammenbau da steht und sieht das noch ne schraube übrig ist :<
KlausBrot 1 month ago
делайте уже реальный образец и снимите на видео
soulxtr 1 month ago
@soulxtr какой образец)) Слышал про сайт сколково? На него вделили около 150000 тысяч рублей. Сайт делался ровно год. Через несколько часов после открытия и-город.ру взломали и выложили все в интернет. Цена движка сайта - 65$. По сайту даже нет стандартного поиска. ГДЕ ДЕНЬГИ, ВАСЯ??
negatiff54 1 month ago
@negatiff54 да сколково это проект для воровства денег, не зря там чубайс рулит, и вексельберг ему помогает.
А сайт это уже традиция! В каждой губернии под эти дела выделялись миллионы. А потом 1 программист за неделю делает сайт.
soulxtr 1 month ago
thats a great vid
alsationwolfdogs 1 month ago
will not work
danialphaomega 1 month ago
@danialphaomega I think that it would work, just not very well. The combustion has a very large number of seals to try to leak past. There is a lot of mechanical stuff vs the amount of combustion. The forces on the parts will be huge if you try to run it fast. All in all pistons going up and down works better.
knowledgemonger 1 month ago
@danialphaomega That is a very informative, in depth reply. Thank you for sharing with us!
So glad you took the time to explain all the downfalls of this setup in such detail.
ArkadiusProductions 1 month ago
@danialphaomega Allready works
911Investigate911 1 month ago
Cool animation
MrFARTSANDWICH 1 month ago
too bad it doesn't work. the 2 sets of pistons would be pushing each other backwards. it needs to somehow only be allowed ot move forwards but it isn't happening. there isn't any ratchet anywhere to stop them from going backwards.
Choice777 1 month ago
@Choice777 you could easily set it up with gears that only operate in one direction via worm screw or timing.
hippo459 1 month ago
While I find the use of an internal combustion engine in the hybrid platform a bit absurd, the Engine itself is quite fascinating.
I say ICE is absurd because the point of a hybrid is to achieve the highest possible fuel efficiency. Since your efficiency can never be greater than the peek efficiency of your prime mover, they should be focusing on the most efficient engine available.
I suggest investigating a Beta type Stirling Motor with integrated linear and rotary alternators.
OpinionsofDave 1 month ago
Any video of the real thing?
ValmisFilm 1 month ago
@ValmisFilm, this spring or summer probably.
Itoyokofan 1 month ago
@ValmisFilm .youtube.com/watch?v=Yfesa9Qr1xc&feature=relmfu
asdn1 1 month ago
This is what they used in the Metal Gears huh?
A1234567890J1 1 month ago
i don't think the pistions actually collide, , It's still a 4-stroke cycle by the looks of it, so on ignition one pistion comes around and just before it stops, the fuel-air mixture is ignited and the force drives the still piston while the other one comes to rest, either that or the compressed air can't be compressed any further and drives the other piston, fascinating, Very high rpm possible i think with this design
gaffney92 1 month ago
@gaffney92 I'm not exactly sure you can call it a 4 stroke. I'd say its a single stroke, because it inhales, compresses, fires, and exhausts simultaneously in one action.
OpinionsofDave 1 month ago
@gaffney92 Also, the spark ignition system is pointless as the compression ratio is clearly too high to have fuel introduced before the TDC. The compression ratio, by my estimate, would between aprox 25:1 and that will auto ignite all conventional fuels.
OpinionsofDave 1 month ago
fuck this i will keep my 600 hp twin turbo v6 gas eating clunker
volodymyrm1 1 month ago
@volodymyrm1 The type of engine (sans hybrid crap) is capable of woopin the ass of any linear piston engine. This engine will have made 16 power stroke by the time your v6 made 6. That means this Engine has 10 more power strokes than you engine.
The American MYT has 32 power strokes per cycle.
OpinionsofDave 1 month ago
@OpinionsofDave ok an your point? i dont see it rolling on the street if its so good its just a youtube no need to be a smart ass
volodymyrm1 1 month ago
@volodymyrm1 My point was to be as snarky to you as you were to this video. It was also to point out the Bold display of Ignorance in your statement.
The Rotary Vane Engine is a remarkable revolution in ICE technology. With as much as 4x power density compared to traditional linear piston engines they have the potential to make cars even more fuel efficient without compromising on performance.
So don't Grognard about you damned v6.
OpinionsofDave 1 month ago
@OpinionsofDave you're really putting efforts in your smart ass responses sorry i am not genius like you are i am sure your parents were proud when you turned 16 and finally able to stop using diapers, made your first elbow macaroni and super glue picture at 18, you must an idiot if you are trying to calculate compression ratio from the animation ">15:1 compression" rotary vane engine is a piece of shit why KERS developed in 2009 is already been put into public cars and rotary vane isn't?
volodymyrm1 1 month ago
How many fucking parts does it need to work. Two strokes for me
thano111 1 month ago
@thano111 A two stroke engine has 1 power strokes per revolution, retains 20-40% of the exhaust gasses, and burns lubricant along with the fuel. This motor has 4 power strokes per revolution, fully vents each chamber, doesn't require lubricant be to be added to the fuel.
The accoutrement of gears are absurdly over sized, so the engine can be greatly reduced in size. Greatly increasing the power density of the engine. But in their defense this video is a concept model meant for demonstration.
OpinionsofDave 1 month ago
5 people are faggots
Moreofthat78 1 month ago
I've seen the American version of this engine a while ago installed and driving a car. Its called the MTY Engine and variations of this engine have been around for quite some time now. Good job on the video!
787brx8 1 month ago
the thing about this stuff is that your adding alot of extra weight because now you need to have a generator and electric motors on top of the icce engine
bulletproof2353 1 month ago
@bulletproof2353
This engines is 1/4 size and weight for equal power.
NearAbbeyRoad 1 month ago
so is it more than an engine, cause in the animation it seems that the black part is a built on electrical generator, and that the transmission is also built in it, so it is to produce electricity and not direct torque the way it was shown in the assembly animation right?
bulletproof2353 1 month ago
from what i can see, the pistons, or whatever they are called in this engine, seem to clash and bump each other at each stroke, how is that i good engine? it wouldn't last 5 minutes in the real world without smashing itself to pieces
i dont get the idea for this engine, what characteristics does it have that is differant from Wankel, 'V', 'Straight' 'Flat', 'Rotary' Engines?
oldkid1231 1 month ago
@oldkid1231 thats exactly what i was thinking, the combustion chamber would just destroy itself from the moment one piston collides with the next
stiffyscotland 1 month ago
@oldkid1231 I think that they didn't show the exact motion of the rotary items. Obviously they would have to stop short of hitting each other. The compression ration only should be perhaps 10 to 1. This would mean there would be enough room to prevent hitting. I don't see any great advantage to this engine design either but for a different reason. It appears that the engine is quite large for the displacement and yet hard too cool.
knowledgemonger 1 month ago
@knowledgemonger Speaking as someone that has hands on experiences with rotary vane motors (namely the MYT), the pistons do not strike each other, but rather both sets are in continues motion. They come to a tight compression, this one appears to be a >15:1 compression by the video. With such high compression the spark plugs are unnecessary.
Lub is not a problem because the angle of stress is rotational rather than linear on most parts, and the oil is also used to pull waist heat out.
OpinionsofDave 1 month ago
@OpinionsofDave I didn't suggest that the pistons would strike each other. You have my comments confused with someone else on that. At 15:1 or higher, a diesel becomes workable but this engine appears to have spark plugs although it is hard to tell from the video.
As for lube not being a problem, it will be about as big of a problem and in a normal piston engine. Not a serious one but something that must be attended to. The sealing issue is likely to be a bigger one.
knowledgemonger 1 month ago
Any reason to have this over a wankel rotary? I can't think of any.
EddyKicksAss 1 month ago
@jpyz450f the assembly on the back. As it spins the pin-arm correlation of the arm controlling the "back" piston (stationary) is set so that the force is "radially parallel" to the rotational axis, via our knowledge of statics if the the arm is oriented in line with the rotating axis no rotational force is created (no motion). Its like the back piston is at BDC. Thats why the rear gear/arm section is so beefy...it essentially holds the combustion chamber in place.
86ChevyK20 1 month ago
that seems to the massive yet tiny engine
TheLeof78 1 month ago
oh boy, another very good concept but as with almost all concept engines it would be a real pain to fix
robthatguyx 1 month ago