Piston Ring is a metal Ring used to insert the inside of a Piston groove. There are two types of Piston rings: compression Ring and engine oil Ring. The compression ring can be used to seal the combustible gas mixture in the combustion chamber; The oil ring is used to scrape excess oil from the cylinder.
The piston ring is a metal elastic ring with a large outward expansion deformation, which is assembled into the profile and its corresponding annular groove. The reciprocating and rotating piston ring, depending on the pressure difference of the gas or liquid, forms a seal between the outer circular surface of the ring and the cylinder, and between the ring and one side of the ring groove.
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