SINOTRUK HOWO Piston ring sets VG1560030050

The main functions of the piston ring group include sealing, oil regulation, heat conduction and guidance. ‌

‌Sealing‌: The main function of the piston ring is to prevent the gas in the combustion chamber from leaking into the crankcase, and to control the gas leakage to a minimum, thereby improving the thermal efficiency of the engine. The gas ring plays an important role in this regard, ensuring the minimum leakage of compressed air and fuel gas‌.

‌Oil regulation‌: The piston ring can scrape off the excess lubricating oil on the cylinder wall, while maintaining a thin oil film on the cylinder wall to ensure the normal lubrication of the cylinder, piston and ring. This is the main responsibility of the oil ring, which helps to reduce the wear inside the engine‌

Heat conduction‌: The piston ring plays a cooling role by transferring the heat of the piston to the cylinder liner. In modern high-speed engines, the heat conduction of the piston ring is particularly important and helps to control the temperature of the engine‌.

‌Guiding‌: The piston ring keeps the piston in the cylinder, prevents the piston from direct contact with the cylinder wall, ensures smooth movement of the piston, reduces friction resistance, and prevents the piston from knocking the cylinder‌.