Sinotruk HOWO Shacman Truck Engine Cylinder Liner Piston Kit 612630900001A for Weichai Wd618 Wp12 Euro III Engine

Components

1.Cylinder liner: It is a cylindrical part embedded in the cylinder barrel. When working, it forms the cylinder working space together with the cylinder head and piston, bears the side thrust of the piston, becomes the guide of the reciprocating motion of the piston, and is also responsible for transferring the heat of the piston assembly and itself to the cooling water.
2.Piston: It is mainly composed of the top, head and skirt. Its top, cylinder head and cylinder wall together form the combustion chamber, bear the gas pressure in the cylinder, and transmit this force to the connecting rod through the piston pin to drive the crankshaft to rotate.
3.Piston ring: It includes gas ring and oil ring. The function of the gas ring is to ensure the seal between the piston and the cylinder wall, prevent high-temperature and high-pressure combustion gas from entering the crankcase, and at the same time transfer most of the heat from the top of the piston to the cylinder; the oil ring is mainly used to scrape off the excess oil on the cylinder wall and spread a uniform oil film on the cylinder wall.
4.Piston pin: Connects the piston and the small end of the connecting rod, and transmits the force of the gas borne by the piston to the connecting rod