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Originally Posted by Agent WD-40
Thanks for the link. That was the first place I looked, but it didn't go into A/F ratios and such.
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Air-Fuel ratios are not used in Diesel engines -- the air is what ignites the fuel mixture.
Quoting the page as follows (Source:
http://auto.howstuffworks.com/diesel1.htm)
"Gasoline engines generally use either carburetion, in which the air and fuel is mixed long before the air enters the cylinder, or port fuel injection, in which the fuel is injected just prior to the intake stroke (outside the cylinder). Diesel engines use direct fuel injection -- the diesel fuel is injected directly into the cylinder. "
"Note that the diesel engine has no spark plug, that it intakes air and compresses it, and that it then injects the fuel directly into the combustion chamber (direct injection). It is the heat of the compressed air that lights the fuel in a diesel engine. "
There you have it, the air compression is what detonates the fuel -- not the spark of the fuel like it is in gasoline engines.
Sanosuke!
Return to Japan - Spring 2004 (Bonus: Singapore)