This is 1 cyl & 1 piston with a cam in the centre of both. Easily could be a 2-stroke opposed piston engine, like Ecomotors OPOC. Extra cams with rods to 2 outside pistons. Gives V high power/weight ratio. Efficiency rises! Power sapping transmission eliminated. Only takes 30HP to push a large car fast down a highway. Use electric clutch on power shaft to switch in extra cylinders for high and low loads. When 2nd cylinders are out no pumping losses & mpg rises dramatically. Use all, go for gold
We have now independently tested the Revetec X4v2 engine at two facilities in Australia and Germany and hold the world record in gasoline engine efficiency of 37.5% or a BSFC 207g/(kW-h)
you know what sucks. i thought up an engine design just like this, thinking i'm all special and stuff then i see this video and get owned by the fact that it's been though of :(
crap crap crap, these engines have been PROVEN to be as effecient a a crankshaft engine and wtf you mean a crankshaft engine is ineffecient?!?!?!?!!?!? ill admit it only uses 70% of the energy available, but the rest goes in as noise, and noise good when you have a v8, a crankshaft engine is reasonbly effecient as it is and thats the end of it
@steevee1945 science my dear boy, science, they are torquey engines but fuck all horsepower compared to piston engines. once the desing has been somewhat perfected then maybe it could compete with such an engine
Revetec have world record & getting 37.5%, not theoretical. What comes out of the wheels that matters.
Use the Revetec camlobes on the Ecomotors OPOC engine, with an electric clutch switching in modules to the engine loads and mpg rises dramatically. Ecomotors claim 50% better mpg using the electric clutch. That is only using an electric clutch to switch out parasitical pumping losses.
Also, a power sapping transmission is not needed
Combine the two, rid the g/box, and a WINNER is here
@NearAbbeyRoad but like i said, the rest of the 70% goes as noise and heat and all that, yeah the heat part isnt so good, but the noise bit is, when was the last time you drove an electric car and though, "hmmm this is nice"? not a lot of people, i love the sound of a huge V8 or a well tuned 4 cylinder, and to me, a fast car that dont make noise is useless, that revetec engine dont sound that nice at all, and lets be honest, this wont make it into production, just too expensive to make.
@NearAbbeyRoad i love the sound from a engine, i love the sound from my 1.6 8 valve car, it sounds quiet ballsy, whats the point of having lots of power if it dont shout about it? whats a ferrari without that iconic engine sound? to me, the revetec engine is pointless, so to many other people, it will be pointless, but to some who want a quiet engine, it will be usefull, butto many, abselute rubbish.
@mushere2k9 The engine comes with a CD that includes 12 diffrent engine sounds, along with steam engine, Locomotive & playing card in the bicycle spokes, sounds. Problem Solved :]
A Wankel run at the engines optimum speed continuously and powering an alternator can effectively power a series electric hybrid.car. The Wankel can rev highly and still be smooth and quiet.
Engines are moving to genny setup applications to power hybrids like the Chevy Volt. Lotus have designed a 3 cyl 1200cc unit just for this application.
The Revetec just replaces the inefficient cranks with more efficient lobes. Piston side slap is eliminated. The lobes can be shaped differently to get more power strokes per rev.
The ends of the pistons are 4-stroke valve setup. This could be replaced with 2-stroke setup, like the Lotus Omnivore engine. Then this setup would eliminate a transmission giving superb packaging/mpg
I can see why Revetec have gone for traditional 4-stroke.Too much into an engine can put makers off.
If we never venture out side of the box with our minds, we will never venture outside the box with our bodies, 60% effeciancy? I doubt it, but if people keep trying new things, evenually something will come up proper
Although I don't believe the entire 60% increase in efficiency, I do see some advantages in this engine. I hope to see more of it in the future. It looks small for it's output, and that is good too. If it has high torque and a low idle consumption it would be all the better. With electronic engine managemnet and Gas DIrect Injection, it might also make a good multi fuel engine (gas, ethanol, diesel)
The 'chinese' though, would make you a broomstick to fly on, provided they get to exploit workers, redesign it, substitute bad materials for good ones, and most of all, get your money.
umm... that last motor was just a subaru EJ series motor. There's no way that huge cam "crankshaft" would fit in there and still allow for any modicum of compression in the heads.
It is definitely better than a conventional piston engine[less moving parts, less friction mean more reliability and more efficiency]... another advantage of this engine might be the fact that it idles at lower RPM. However I see one big problem and that is vibration!!! It has moving masses from side to side... and I think it is very difficult to solve this even with the counteracting motion of other pistons... We will see what will happen with this idea... I hope it works...
Let's see ho long those connecting rods last with the twist imparted by the side loads of the cams on the rollers... good idea, but no way to get the torsional rigidity to keep timing of pistons accurate... plust the harmonics of that twist-untwist action on the rods (it will unload at the top and bottom of each stroke) is murder with regards to metal fatigue
If you look at their website they say most engines now are 27-32% efficient. They claim "a Brake Specific Fuel Consumption (BSFC) of 207g/(kW-h) or 39.5% efficiency. "
Man I wonder if they could make a 5.0 Flat 12 version. Make a highperformance product demonstrator XD
Absolutely amazing design. I think last time I read about it, the trilobe cam setup is about 20% more efficient in terms of power loss as compared to a traditional crankshaft design!
Damn you're stupid... this ReveTech engine isn't that good because is still limited by moving pistons...The Wankel has a lot more to offer than this design... With some more development the rotary Wankel is unbeatable... I have documentation and I work in the field of rotary engines[the apex seals will now use another technology]... It's better than a conventional reciprocating engine, but the Wankel engine is better in concept... Think before you say anything...
You're right, I can't disagree...everybody knows that Wankel engines have a problem with fuel consumption...unfortunately including here the newest RX8 Renesis engine... but I personally think that more resources spent for this problem might just solve it.. It's still a long way to go before we can say that rotaries have reached their maximum potential...And yeah, you did good posting this video... It's a promising start for redesigning IC engines...
Learn about Presidential Candidate Mike Gravel by watching the short series-
"Tribute to Mike Gravel: The Modern Day Thomas Paine".
/watch?v=arS8nFguDsU
Produced by overmind25, who is a very informed young person.
The series informs you what Gravel stands for and what he intends to do. There's not a lot of deception or talking around subjects. Gravel says what he believes is important for the country. Listen to the content.
The engine that comes up after 1min 10 looks very much like the subaru boxer engine. and mine isnt economic at all. it only does 7 miles to the gallon on full boost!
60% less fuel,i don't think so.altering the way the crank rotates the crankshaft can under no circumstances make such a difference,if any.and what about producing them in china.what about keeping those kind of jobs inside the country and not shifting everything to the east.
Aren't the differences debatable? Example: is an outboard unit for a boat an outboard motor or an outboard engine? At what point does a motor become an engine?
Comment removed
pedekiller 3 months ago
Perfect for steam too. High torque engine.
superhotbm 3 months ago
Does increased vibration occur from the opposing cylinder forces compared to a V-twin setup?
spurcross 6 months ago
This is 1 cyl & 1 piston with a cam in the centre of both. Easily could be a 2-stroke opposed piston engine, like Ecomotors OPOC. Extra cams with rods to 2 outside pistons. Gives V high power/weight ratio. Efficiency rises! Power sapping transmission eliminated. Only takes 30HP to push a large car fast down a highway. Use electric clutch on power shaft to switch in extra cylinders for high and low loads. When 2nd cylinders are out no pumping losses & mpg rises dramatically. Use all, go for gold
NearAbbeyRoad 7 months ago
does he have a blow dart in his neck?
majesty373 7 months ago
We have now independently tested the Revetec X4v2 engine at two facilities in Australia and Germany and hold the world record in gasoline engine efficiency of 37.5% or a BSFC 207g/(kW-h)
revetecpeus 1 year ago 3
@revetecpeus
*Replied to pin comment to the top.*
iplop 1 year ago
I wonder how it goes with oil or fuel pooling in the lower cylinders when its not running.
isamike 1 year ago
you know what sucks. i thought up an engine design just like this, thinking i'm all special and stuff then i see this video and get owned by the fact that it's been though of :(
it's a good idea though
pedekiller 1 year ago
crap crap crap, these engines have been PROVEN to be as effecient a a crankshaft engine and wtf you mean a crankshaft engine is ineffecient?!?!?!?!!?!? ill admit it only uses 70% of the energy available, but the rest goes in as noise, and noise good when you have a v8, a crankshaft engine is reasonbly effecient as it is and thats the end of it
mushere2k9 1 year ago
@mushere2k9 WHO and WHERE were these engines "proven" to be as efficient as a crankshaft engine?
steevee1945 1 year ago
@steevee1945 science my dear boy, science, they are torquey engines but fuck all horsepower compared to piston engines. once the desing has been somewhat perfected then maybe it could compete with such an engine
mushere2k9 1 year ago
@mushere2k9
"wtf you mean a crankshaft engine is ineffecient?!?!?!?!!?!? ill admit it only uses 70% of the energy available"
I would call that very inefficient.
NearAbbeyRoad 7 months ago
@mushere2k9
@NearAbbeyRoad
Internal combustion engines have a thermodynamic limit of 37% efficiency (no matter the configuration).
Rocket engines are 70% efficient, if that's what you mean.
Source:
wiki / internal_combustion_engine#Energy_efficiency
iplop 7 months ago
@iplop
Revetec have world record & getting 37.5%, not theoretical. What comes out of the wheels that matters.
Use the Revetec camlobes on the Ecomotors OPOC engine, with an electric clutch switching in modules to the engine loads and mpg rises dramatically. Ecomotors claim 50% better mpg using the electric clutch. That is only using an electric clutch to switch out parasitical pumping losses.
Also, a power sapping transmission is not needed
Combine the two, rid the g/box, and a WINNER is here
NearAbbeyRoad 7 months ago
@iplop
The camlobes transfer far more of the power from the pistons to the output shaft than any crankshaft.
NearAbbeyRoad 7 months ago
@NearAbbeyRoad but like i said, the rest of the 70% goes as noise and heat and all that, yeah the heat part isnt so good, but the noise bit is, when was the last time you drove an electric car and though, "hmmm this is nice"? not a lot of people, i love the sound of a huge V8 or a well tuned 4 cylinder, and to me, a fast car that dont make noise is useless, that revetec engine dont sound that nice at all, and lets be honest, this wont make it into production, just too expensive to make.
mushere2k9 6 months ago
@mushere2k9
What are you on about? Noise. EVs are brilliant, love em. Nice and quiet. I hate noisy machines. Noise? Are you bonkers?
NearAbbeyRoad 6 months ago
@NearAbbeyRoad i love the sound from a engine, i love the sound from my 1.6 8 valve car, it sounds quiet ballsy, whats the point of having lots of power if it dont shout about it? whats a ferrari without that iconic engine sound? to me, the revetec engine is pointless, so to many other people, it will be pointless, but to some who want a quiet engine, it will be usefull, butto many, abselute rubbish.
mushere2k9 6 months ago
@mushere2k9 Nah, I like speeding up stealthily.
stevenmorookian16 4 months ago
@mushere2k9 The engine comes with a CD that includes 12 diffrent engine sounds, along with steam engine, Locomotive & playing card in the bicycle spokes, sounds. Problem Solved :]
marklmansfield 4 days ago
@NearAbbeyRoad nope thats gecause of the combination between power and lifetime
if you push a motor up to hundret precent of its possible power the lifetime goes down
example take a 75 hp motor and chip tune it up to 150 hp (technical no problem) you drive not even 50 miles till its failure....
Carnatics 6 months ago
Comment removed
Sunriseseller 1 year ago
@Sunriseseller
???
iplop 1 year ago
@iplop ???
Sunriseseller 1 year ago
@iplop
A Wankel run at the engines optimum speed continuously and powering an alternator can effectively power a series electric hybrid.car. The Wankel can rev highly and still be smooth and quiet.
Engines are moving to genny setup applications to power hybrids like the Chevy Volt. Lotus have designed a 3 cyl 1200cc unit just for this application.
NearAbbeyRoad 1 year ago
hah haa...! 455cid is the motor.
juhaniful 1 year ago
screw this. have you seen that little spec engine? square piston with crankshaft inside the piston. now that's a space saver!
ivankoran 1 year ago
brilliant!
Otaku35 1 year ago
So this is what u get when u mate rotary with piston. Still needs heads and valvetrain etc
davidm5889 1 year ago
I dont see how much different it is still needs a valvetrain etc just like any other motor.
Ps. Rotary/piston would mate this is what come out
davidm5889 1 year ago
@davidm5889
The Revetec just replaces the inefficient cranks with more efficient lobes. Piston side slap is eliminated. The lobes can be shaped differently to get more power strokes per rev.
The ends of the pistons are 4-stroke valve setup. This could be replaced with 2-stroke setup, like the Lotus Omnivore engine. Then this setup would eliminate a transmission giving superb packaging/mpg
I can see why Revetec have gone for traditional 4-stroke.Too much into an engine can put makers off.
NearAbbeyRoad 1 year ago
make this into a 2 stroke turbo diesel. way more efficient. way more powerful
magnum9987 1 year ago
If we never venture out side of the box with our minds, we will never venture outside the box with our bodies, 60% effeciancy? I doubt it, but if people keep trying new things, evenually something will come up proper
ssacproductions 1 year ago
Although I don't believe the entire 60% increase in efficiency, I do see some advantages in this engine. I hope to see more of it in the future. It looks small for it's output, and that is good too. If it has high torque and a low idle consumption it would be all the better. With electronic engine managemnet and Gas DIrect Injection, it might also make a good multi fuel engine (gas, ethanol, diesel)
SHIPCHIEF 1 year ago
what is the difference between this and an axial engine?
because the way it work looks pretty same, i guess they are not so different in terms of performance
OttomanDrifter91 1 year ago
The 'chinese' though, would make you a broomstick to fly on, provided they get to exploit workers, redesign it, substitute bad materials for good ones, and most of all, get your money.
geoffshred 2 years ago 5
umm... that last motor was just a subaru EJ series motor. There's no way that huge cam "crankshaft" would fit in there and still allow for any modicum of compression in the heads.
pwjm 2 years ago
That is what I was thinking. I have an EJ25 non turbo sitting in my back yard and that looks just like the one in the video.
I think being 60% more efficient in power and fuel efficiency then it needs to be more thermally efficient.
nmille44 2 years ago
It is definitely better than a conventional piston engine[less moving parts, less friction mean more reliability and more efficiency]... another advantage of this engine might be the fact that it idles at lower RPM. However I see one big problem and that is vibration!!! It has moving masses from side to side... and I think it is very difficult to solve this even with the counteracting motion of other pistons... We will see what will happen with this idea... I hope it works...
nebunu1force 2 years ago
Let's see ho long those connecting rods last with the twist imparted by the side loads of the cams on the rollers... good idea, but no way to get the torsional rigidity to keep timing of pistons accurate... plust the harmonics of that twist-untwist action on the rods (it will unload at the top and bottom of each stroke) is murder with regards to metal fatigue
BriKuz 2 years ago
60% more fuel efficiency sounds like bullshit. For that to be possible, a normal rotary piston needs to be wasting that much energy in friction.
zzasdfwas 2 years ago
If you look at their website they say most engines now are 27-32% efficient. They claim "a Brake Specific Fuel Consumption (BSFC) of 207g/(kW-h) or 39.5% efficiency. "
TheRooster602 2 years ago
@zzasdfwas Utter bullshit, go learn a thing or two about entropy and ideal cycles before making a stupid statement like that.
daver00 1 year ago
It seems to be a redesigned bourke engine.
jtomos 2 years ago
Does it work as a Diesel engine? I mean using this technology for high compression piston engines...that would be awesome... Nice...
nebunu1force 2 years ago
Wether or not it works, from this video, who knows. Pretty useless video, graphics need to be better and explenation needs to be more extensive imho.
olivervallee 2 years ago
what is that underneath your right ear, a part that didn't get blue screened?
LTF85199 3 years ago
That would be his mic
iplop 3 years ago
guessed, needed a confirmation
LTF85199 3 years ago
60% less fuel? Are you sure?
LTF85199 3 years ago
Man I wonder if they could make a 5.0 Flat 12 version. Make a highperformance product demonstrator XD
Absolutely amazing design. I think last time I read about it, the trilobe cam setup is about 20% more efficient in terms of power loss as compared to a traditional crankshaft design!
PukaMan 3 years ago
Go to the "revetec" link in the video description. They have a 4 cylinder dune buggy to showcase this engine.
iplop 3 years ago
It seems a little low on power? Slow to rev. There is lots of oil so roll out the 900 cid motors.
sxdc2w3e 3 years ago
Can it be in multiple cylinder platforms? (More Pistons)
Timzsk8 4 years ago
Yep, their current model is a four cylinder X(2 perpendicular oscillating cylinder head head rod thingies) configuration engine.
Also, they recently acquired a contract to mass produce these things in Germany.
iplop 3 years ago
Is it More efficient than the Rotary Engine?
Timzsk8 4 years ago
Rotary engines have a problem that the rotor also must be a seal, so there are frictional problems.
jono64a 3 years ago
anything is more efficient than a wankel rotary!
marek0086 3 years ago
Damn you're stupid... this ReveTech engine isn't that good because is still limited by moving pistons...The Wankel has a lot more to offer than this design... With some more development the rotary Wankel is unbeatable... I have documentation and I work in the field of rotary engines[the apex seals will now use another technology]... It's better than a conventional reciprocating engine, but the Wankel engine is better in concept... Think before you say anything...
nebunu1force 3 years ago
Perhaps the Wankel engine is technically more efficient but it still suffers from poor gas millage due to the high rpm which it runs at.
I really like the Wankel engine as a concept but in reality it's limited to (fairly) high performance gas gussler cars. (as you said)
iplop 3 years ago
You're right, I can't disagree...everybody knows that Wankel engines have a problem with fuel consumption...unfortunately including here the newest RX8 Renesis engine... but I personally think that more resources spent for this problem might just solve it.. It's still a long way to go before we can say that rotaries have reached their maximum potential...And yeah, you did good posting this video... It's a promising start for redesigning IC engines...
nebunu1force 3 years ago 2
Learn about Presidential Candidate Mike Gravel by watching the short series-
"Tribute to Mike Gravel: The Modern Day Thomas Paine".
/watch?v=arS8nFguDsU
Produced by overmind25, who is a very informed young person.
The series informs you what Gravel stands for and what he intends to do. There's not a lot of deception or talking around subjects. Gravel says what he believes is important for the country. Listen to the content.
waveoflight 4 years ago
You should change the cam slopes to allow a longer combustion stroke and a shorter exhaust stroke. That should have been obvious
lazzer408 4 years ago
How can the exhaust stroke be shortened while still maintaining a full combustion stroke and intake stroke?
Combustion, piston goes all the way down, part of the way back up and then has a limited intake too?
94XJ 3 years ago
google... REVETECH Engine/ motor
esir20 4 years ago
The engine that comes up after 1min 10 looks very much like the subaru boxer engine. and mine isnt economic at all. it only does 7 miles to the gallon on full boost!
shakes10398 4 years ago
Revetec . com
TheRooster602 4 years ago
autofieldguide . com / articles / 050302 . html
TheRooster602 4 years ago
60% less fuel,i don't think so.altering the way the crank rotates the crankshaft can under no circumstances make such a difference,if any.and what about producing them in china.what about keeping those kind of jobs inside the country and not shifting everything to the east.
markusdoniec 4 years ago
3 expansions per rev! eficence lot better than 4 stroke!!
bugsier5 4 years ago
Aren't the differences debatable? Example: is an outboard unit for a boat an outboard motor or an outboard engine? At what point does a motor become an engine?
iplop 5 years ago
whatever mang.. their coming out with the water engine =P
monkashroom 5 years ago
Cool engine. Where can we find more information on this motor? Thanks.
MasterTiesto 5 years ago