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Old 06-20-2009, 09:21 PM   #16 (permalink)
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Quote:
Originally Posted by aerohead View Post
The 2-stroke was the great hope of the auto industry,as with a power stroke for each rev,and same pressure above and below pistons,engineers hoped to exploit that tech.,and its high power/weight,and volumetric efficiency.They just couldn't lick emissions issues and everyone has pulled the plug.Honda has a "sparkless" gasoline engine with same BSFC as a diesel and is investigating computer controls to allow operation at low loads where an ignition system is required.------- I've been looking at the Navy's diesel-powered torpedo engine which has only half the "pumping",as a peroxide oxidizer is introduced to the combustion-chamber.There is no intake tract as we understand it in atmo engines.
I kinda wondered about using a system kind of like that, where you spray the liquid oxidizer into the cylinder just before the fuel, so that the oxidizer heats up enough to create combustion diesel style. You could precisely meter the amount of fuel/oxidizer that goes into the engine, so you could control apparent "displacement" (even thought the physical displacement would be the same, you could control how much oxidizer is present, and how much fuel is used in turn.)
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