"Boss2452stolemylunchmoney" (boss2452stolemylunchmoney)
02/10/2015 at 08:20 • Filed to: None
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"Boss2452stolemylunchmoney" (boss2452stolemylunchmoney)
02/10/2015 at 08:20 • Filed to: None | 0
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Pictured below is a 35 HP gen-set diesel engine next to a 40 HP LiquidPiston diesel engine. Very interesting, eh?
But this time, it features enough compression ratio to run compression ignition (diesel) and has 3 combustion cycles per revolution. It also features atkinson cycle operation as well, so it's much more efficient than a typical diesel. The big question, can this engine feature more favorable idle and low-load factor operation to overcome the fuel efficiency drawbacks of a typical rotary combustion engine? It's always interesting to see these new engine architectures.
Mattbob
> Boss2452stolemylunchmoney
02/10/2015 at 08:24 |
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But what about the torques???? Surely they can't fit as many torques in that little guy!
itschrome
> Boss2452stolemylunchmoney
02/10/2015 at 08:33 |
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Oh wow, those Liquid piston engines are cool:
http://liquidpiston.com/technology/how…
davedave1111
> Boss2452stolemylunchmoney
02/10/2015 at 08:39 |
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I'm not quite sure why, but the Liquid Piston people have always seemed to me to be only a small step away from the cold fusion scammers. Maybe it's the strength of their rather unlikely claims, maybe it's their general style of doing things, but I don't get the impression they really think their engine actually works, just that they can keep attracting funding to 'develop' it.
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Boss2452stolemylunchmoney
> Mattbob
02/10/2015 at 08:40 |
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Torque is directly proportional to power and engine speed. So if they're making the power, they have to be making the torque.
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Boss2452stolemylunchmoney
> davedave1111
02/10/2015 at 08:41 |
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A lot of these new engine designs feel like that to me. However, I give this one a little more weight because I read about it in SAE's Off Highway Engineering magazine.
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Mattbob
> Boss2452stolemylunchmoney
02/10/2015 at 09:14 |
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nope. The small engine could make less torque, but go to a higher RPM, and therefore make a higher power output.
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Boss2452stolemylunchmoney
> Mattbob
02/10/2015 at 10:49 |
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What you'll notice is that this engine is so much smaller because it lacks reciprocating components. It has no pistons or connecting rods, so it doesn't need to be as tall. Also, the combustion chamber's positions around the center axis may be just as large as the crankshaft radius of a traditional piston engine. So, it may have similar moment arm and, therefore, torque. Additionally, it has 3 combustion cycles per revolution, which will increase it's average torque.