( Automotive engineering : Vehicle components , Engine, transmission, and exhaust )
crankcase, compression1, compression2
In two-stroke cycle engines using crankcase compression, lubricating oil must be added to the inlet air.
The two-stroke cycle uses crankcase compression to pump the fresh charge into the cylinder.
In almost all two-stroke cycle engines, crankcase compression is used to force air into and scavenge the cylinders.
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