The function of the lubrication system is to continuously supply a certain amount of lubricating oil-diesel generator oil to the friction surface of each moving part of the diesel generator set, forming an oil film on the surface of the part to reduce frictional resistance and wear of parts. Specifically, the lubrication system has the following functions.

　　1. Anti-friction effect, through the formation of a layer of oil film on the friction surface, liquid lubrication is achieved, the frictional resistance between the surface of the moving parts is reduced, the wear of the parts is reduced, and the power loss of the diesel generator set is reduced.

　　2, the cooling effect, through the flow of lubricating oil, take away the heat generated by the surface friction of the parts and the absorbed heat, so that the temperature of the parts is not too high.

　　3. Cleaning action, using the flow of lubricating oil, washing away the metal grinding residue or other impurities generated by friction, and maintaining the cleaning of the friction surface.

　　4, the sealing effect, the viscosity of the lubricating oil, attached to the surface of the moving parts, improve the sealing effect of the parts to reduce leakage.

　　5, anti-rust protection.