Standard Compression Piston Ring of 4BA1

Piston ring is a kind of metal ring used to embed into the groove of piston. There are two kinds of piston rings: compression ring and 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 the excess oil from the cylinder. Piston ring is a kind of metal elastic ring with large outward expansion deformation, which is assembled into the profile and its corresponding annular groove. Reciprocating and rotating piston rings, depending on the pressure difference of gas or liquid, form a seal between the outer circle of the ring and the cylinder, and between the ring and one side of the ring groove.