The functions of the cylinder liner are:
1. Together with the cylinder head and the piston, the cylinder working space is formed.
2. The cylinder liner of the cylindrical piston diesel engine bears the thrust of the piston side and becomes the lead of the reciprocating movement of the piston.
3. Transfer the heat of the piston assembly and itself to the cooling water to make it work at a proper temperature.
4. The cylinder liner of the two-stroke diesel engine is equipped with gas ports, which are opened and closed by the piston to realize gas distribution.