The diesel engines are compression ignition engines. The diesel engine uses the heatofcompression to ignite the fuel.
柴油机和汽油机一个主要区别是柴油机的压缩比非常高。
2
In a diesel engine, there is no spark plug. Instead, diesel fuel is injected into the cylinder, and the heat and pressure of the compression stroke cause the fuel to ignite.
柴油发动机内没有火花塞，取而代之的是将柴油喷入发动机气缸，然后压缩冲程在高温高压下引起燃料点火。
3
In the compression process take away heat generation ofcompression.