How many crankshaft revolutions are required to complete the two strokes within a two-stroke diesel engine?

In a two-stroke diesel engine, the design allows for one complete power cycle to be achieved with just one crankshaft revolution. The engine completes both the intake and power strokes in this single revolution.

During the process, the engine utilizes the downward stroke of the piston to create a vacuum that draws in the air-fuel mixture, and simultaneously, as the piston moves back up, it compresses the mixture before ignition occurs. This means that every single revolution of the crankshaft corresponds directly to one complete cycle of both the intake and power strokes.

This characteristic is one of the primary distinctions between two-stroke and four-stroke engines. In a four-stroke engine, two crankshaft revolutions are required to complete all four strokes: intake, compression, power, and exhaust. Thus, in the case of a two-stroke diesel engine, one crankshaft revolution is sufficient to complete both strokes, confirming that the answer is indeed one.