(Summary description)The cylinder block and cylinder liner of most engines are cast as a whole, and some are made of aluminum alloy for the cylinder block, and alloy cast iron for the cylinder liner. The alloy cast iron cylinder liner can be cast in the cylinder block by low-pressure casting, or the cylinder block and cylinder liner can be combined by the interference fit method; the cylinder block made of aluminum alloy can reduce the weight of the engine on the one hand, and on the other hand It can improve the heat dissipation performance of the cylinder. Cylinder liners are divided into two categories: dry liners and wet liners: the cylinder liner that does not contact the cooling water on the back is called the dry liner, and the cylinder liner that contacts the cooling water on the back is the wet cylinder liner. The dry cylinder liner has thin thickness, simple structure and convenient processing; the wet cylinder liner directly contacts the cooling water, which is beneficial to the cooling of the engine, and is beneficial to the miniaturization and light weight of the engine.

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• Time of issue:2021-09-07
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