What Does Diesel Engine Stroke Mean

[Jessie]

Diesel engine stroke generally refers to a two-stroke diesel engine. A working cycle of a two-stroke diesel engine is completed within one rotation of the crankshaft, meaning the four steps of intake, compression, expansion, and exhaust are completed within 360 degrees of crankshaft rotation. In this type of diesel engine, compression and expansion constitute a relatively complete piston stroke, hence it is called a two-stroke diesel engine. Intake and exhaust are completed in a very short period at the end of the expansion process and before the start of the compression process (exhaust first, then intake, with overlap between intake and exhaust). Additional Information: 1. Four-stroke diesel engine: The working principle of a four-stroke diesel engine involves completing the diesel engine's operation through four processes: intake, compression, combustion expansion, and exhaust. These four processes form a working cycle. A diesel engine that requires the piston to go through four processes to complete one working cycle is called a four-stroke diesel engine. 2. Stroke: The distance the engine's piston travels from one extreme position to another is called a stroke, also known as travel. The length of the stroke has a direct relationship with the piston speed of the engine. As the stroke increases, the piston speed also increases, leading to greater mechanical losses, which directly limits the engine's maximum RPM.