What is the Function of the Oil Ring?

[AylaRose]

About the specific introduction of the oil ring function is as follows: 1. The specific function of the oil ring. The main function of the oil ring is to scrape off the excess oil splashed onto the cylinder wall during the downward stroke, preventing the excess oil from entering the combustion chamber and participating in combustion; during the upward stroke, it applies a uniform oil film on the cylinder wall to reduce the wear of the piston, piston rings, and cylinder. 2. Classification of oil rings. The oil ring is a type of piston ring, divided into ordinary oil rings and composite oil rings. The structure of an ordinary oil ring is made of alloy cast iron, with a groove cut in the middle of the outer circular surface, and many small through oil drainage holes or slits processed at the bottom of the groove; while the composite ring consists of upper and lower scrapers and a spacer spring that generates radial and axial elastic forces. The oil ring scraper is very thin, with a high specific pressure on the cylinder wall and strong oil scraping ability.