It's good for fuel efficency, but the problem is the lack of power. The Prius 1.8 only got 98bhp from a 1,795cc 4-cyl engine...... The 1.6 liter engine from a Peugeot 308 alredy produces 110bhp naturally aspirated....
@TrueBlueEG8 I know it has low horsepower, but the good thing of this system DOES minimize the fuel consumption. And the emmisions are much less compared from other cars. I could get 210bhp from my 2.0L 4-cyl naturally aspirated RenaultSport Clio though.....
Really? Did anyone notice that it the ignition sequence was labeled "detonation" which would be the last thing you would want going on in the COMBUSTION chamber. I know the author references "knocking/pinging" which is the same as detonation. but I don't think he/she was saying that's what was happening here. Some of you may know this and some may not. I learned it too, detonation=supersonic combustion=damage. you want deflagration=subsonic combustion
Actually... "knocking/pinging" is known as "PRE-detonation" And many lazier people incorrectly drop the "Pre". Detonation is what happens during combustion... and does not damage engines if the timing and speed of the explosion is correct.
@Joeviocoe You are still wrong. What I think you're referring to is pre-ignition. Detonation is super sonic and can wreak havoc on your engine if it is strong enough. Normal combustion in a normal auto engine does not include any form of detonation.
@zaco21 That's incorrect. Todays Atkinson engines do not use more fuel at higher speeds then Otto. Gas Hybrids make tons of sense and are the next step into the future. Diesel hybrid's don't make sense. Cost being the major factor, but also the fact of the torque numbers the diesels make along with the torque numbers of electric motors. That wouldn't work, so the only way to do this is to power the front and rear drive wheels seperate. Ie front powered by electric, rear powered by diesel.
this is more of a miller cycle engine than atkinson, because the miller cycle leaves the intake open longer, while an atkinson cycle has a longer exhaust stroke
Ironically the Atkinson cycle increases the fuel consumption at higher speeds. In the end it proves useless. The Atkinson engine, the idea of putting an ICE with an electric engine in a single car, they're all useless. Maybe hybrid technology works, but not this way. The Prius and current hybrid versions of many cars are really useless, unless you have a Diesel-electric car.
tryin to work out the diff between atkinson and miller....my understanding is there similar miller uses a supercharger to keep compression in the the cylinders and the prius hybrid system uses vvti and electronics to controll the valves to keep pressure in the cylinders ...
mazda millenia have this type of engine and its cool! with supercharger
manolo44op 1 week ago
@manolo44op Hello, good point but the Millenia is a Miller-Cycle. Same principle of valve timing, but different timing. Thanks so much for posting...
ADPTraining 1 week ago
It's good for fuel efficency, but the problem is the lack of power. The Prius 1.8 only got 98bhp from a 1,795cc 4-cyl engine...... The 1.6 liter engine from a Peugeot 308 alredy produces 110bhp naturally aspirated....
doraemon8061 3 months ago
@doraemon8061 yeah and my 1.6 honda came with 160bhp, and that was almost 20yrs ago, progress my arse.
TrueBlueEG8 2 months ago
@TrueBlueEG8 I know it has low horsepower, but the good thing of this system DOES minimize the fuel consumption. And the emmisions are much less compared from other cars. I could get 210bhp from my 2.0L 4-cyl naturally aspirated RenaultSport Clio though.....
doraemon8061 2 months ago
@doraemon8061 Indeed, its an excellent idea,but i do like a bit of bhp with my mpg! 210hp from your clio,yea? thats not standard though,is it?
TrueBlueEG8 2 months ago
@TrueBlueEG8 It's a RenaultSport car. it's tuned originally by factory.
doraemon8061 2 months ago
@doraemon8061 Id say its a lively little thing with so much power and so little weight, they hold the road well too from what i understand.
TrueBlueEG8 2 months ago
i heard this use for easy starting the engine while driving with battery(low compression)is it true? or is this only for thermal efficiency?
dilandhanushka 4 months ago
Really? Did anyone notice that it the ignition sequence was labeled "detonation" which would be the last thing you would want going on in the COMBUSTION chamber. I know the author references "knocking/pinging" which is the same as detonation. but I don't think he/she was saying that's what was happening here. Some of you may know this and some may not. I learned it too, detonation=supersonic combustion=damage. you want deflagration=subsonic combustion
kdvlder 10 months ago 4
@kdvlder
Actually... "knocking/pinging" is known as "PRE-detonation" And many lazier people incorrectly drop the "Pre". Detonation is what happens during combustion... and does not damage engines if the timing and speed of the explosion is correct.
Joeviocoe 2 weeks ago
@Joeviocoe You are still wrong. What I think you're referring to is pre-ignition. Detonation is super sonic and can wreak havoc on your engine if it is strong enough. Normal combustion in a normal auto engine does not include any form of detonation.
kdvlder 2 weeks ago
@zaco21 That's incorrect. Todays Atkinson engines do not use more fuel at higher speeds then Otto. Gas Hybrids make tons of sense and are the next step into the future. Diesel hybrid's don't make sense. Cost being the major factor, but also the fact of the torque numbers the diesels make along with the torque numbers of electric motors. That wouldn't work, so the only way to do this is to power the front and rear drive wheels seperate. Ie front powered by electric, rear powered by diesel.
loweredtalon 1 year ago
this is more of a miller cycle engine than atkinson, because the miller cycle leaves the intake open longer, while an atkinson cycle has a longer exhaust stroke
lt379 1 year ago
@lt379 Miller Cycle engines are Forced Induction Atkinson engines.
loweredtalon 1 year ago
its kind of a two-stroke + four-stroke isnt it? all you have to do is just increase the valve timing and you get a atkinson cycle.
MrRunforyourlife 1 year ago
Ironically the Atkinson cycle increases the fuel consumption at higher speeds. In the end it proves useless. The Atkinson engine, the idea of putting an ICE with an electric engine in a single car, they're all useless. Maybe hybrid technology works, but not this way. The Prius and current hybrid versions of many cars are really useless, unless you have a Diesel-electric car.
zaco21 1 year ago
@zaco21 i wouldn't say that. i've seen prius's be abused and taken to 120mph and still get 50mpg
ajbauto 8 months ago
its working like a two stroke this way isn't it?
tom89whoop 1 year ago
@tom89whoop Not even close a two stroke has no valve's at all.
seroyer2 1 year ago
@seroyer2 in this animation it is clearly working like a two stroke in the sense that is has a power stroke every two strokes........
tom89whoop 1 year ago
@seroyer2 some two stroke engines do have valves.
qwerty8462 1 year ago
tryin to work out the diff between atkinson and miller....my understanding is there similar miller uses a supercharger to keep compression in the the cylinders and the prius hybrid system uses vvti and electronics to controll the valves to keep pressure in the cylinders ...
somerandomaussie 1 year ago