What are the names of the three rings? Why piston ring gas ring one white one black
The three rings of the piston ring are mainly divided into two categories, the piston pin hole of the piston ring for the oil ring, the other two rings for the gas ring. The gas ring is also called the compression ring, which is mainly used to seal the piston to prevent air leakage of the cylinder, and can transfer the heat from the top of the piston to the cylinder sleeve, and then take the heat away by the cooling water. The other type is the oil ring, which itself can store part of the oil, used to lubricate the cylinder liner, and can scrape the excess oil from the cylinder liner.
Why piston ring gas ring one white one black?
Piston gas ring color is mainly related to the material of the gas ring. The surface of the white gas ring is generally coated with a layer of metal chromium, while the black gas ring is a bit darker because it is cast iron. Normally speaking, the piston first gas ring is white ring, white gas ring is barrel surface, no matter what kind of working state the piston is in, can be closely attached to the cylinder cylinder circle.
The second gas ring is black and rectangular. The reason why it is not placed in the position of the first gas ring is mainly because the swing of the rectangular ring will rub against the inner wall of the cylinder and the sealing is not good.
How to maintain the piston ring?
1. Add quality oil to your car. When the engine is running normally, the piston ring will move violently with the piston, and the lubrication effect of high-quality oil will be better, which can reduce its wear to a certain extent.
2, regular cleaning of foreign bodies in the cylinder. Oil, carbon and other substances too much will affect the normal work of the piston ring, and aggravate the wear of the cylinder liner, serious and even cause cylinder pulling.
3, piston ring installation to match. If the piston ring does not match the cylinder liner, it can easily deform.
