The maximum speed of Marine high-speed diesel engine is 2100r/min.

The diesel engine is rated at the rated speed, rated at 1000 or above, and the rated speed machine is rated 3000-1000.

It can also be divided into the average speed of the piston, the high-speed machine is 9.0~14.2 meters per second, the medium speed machine is 7.0~9.4 meters per second, and the low-speed machine is 6.0~7.2 meters per second.

The advantages of diesel engine are high torque and good economic performance.

The working process of a diesel engine is similar to that of a gasoline engine, and each work cycle is also experienced with four strokes of air intake, compression, work and exhaust.

But as a result of diesel engine fuel is diesel, its viscosity is bigger than gasoline, it is not easy to evaporation, while the combustion temperature is lower than gasoline, as a result, the formation of combustible mixture and ignition mode are different from gasoline engine.