A piston ring is a metal elastic ring with a large outward expansion deformation, which is assembled into a section and its corresponding annular groove. Reciprocating and rotating piston rings rely on the pressure difference of gas or liquid to form a seal between the outer surface of the ring and the cylinder and one side of the ring and the ring groove.
Piston ring functions include four functions: sealing, adjusting engine oil (oil control), heat conduction (heat transfer), and guide (support). Sealing: refers to sealing the gas, preventing the gas in the combustion chamber from leaking to the crankcase, controlling the gas leakage to a minimum, and improving thermal efficiency. Air leakage not only reduces the power of the engine, but also deteriorates the oil. This is the main task of the air ring. Adjusting the oil (oil control): scrape off excess oil from the cylinder wall, and at the same time make the cylinder wall thin. The thin oil film ensures the normal lubrication of the cylinder, piston and ring, which is the main task of the oil ring.
Marking of piston rings GB / T 1149.1-94 stipulates that all piston rings requiring installation direction shall be marked on the upper side, that is, the side close to the combustion chamber. The rings marked on the upper side include: tapered face ring, inner chamfer, cut-out table ring, nose ring, wedge ring and oil ring with the required installation direction.
We provide Linhai 400cc piston ring with good quality. Also follow the instructions to install.
Linhai 400cc piston ring
Fit for: Linhai 400cc engine
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