In our previous publication, we touched on the subject of-stroke diesel engines.http:www.free-engineering.comfwezine.htm . Today, we askwhy we choose to use -strokes? As you might remember, for a -stroke engine, the piston has tomove up, and then down to complete one cycle of the engine. Inthose strokes of the piston, the crankshaft will have turned revolution. In those strokes of the piston the engine has alsocompleted stages of the combustion cycle – air intake,compression, combustion and exhaust.Now, compare that with a -stroke engine. The piston moving downwill complete the air intake stroke. When it moves up again, thepiston completes the…

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