Internal Combustion Engines - CaltechAUTHORS

230 Internal Combustion Engines Chap. 4 industrial engines to 10,000 rpm or more for high-perfonnaneeengines. Most automo­ biles operate with engine speeds in the vieinity of 3000 rpm. At this speed, each stroke in the cycle takes place in 20 ms. As an automobile is driven, the equivalence ratio and intake pressure vary with the engine load. ................
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