How do piston rings work? 　　 

Regarding piston rings, what we know is about the application of piston rings. Piston rings are an important part of the heart of the car. Do you know the working efficiency of piston rings? 　　 

The performance of the automobile piston ring has a decisive influence on the quality and working efficiency of the engine, because the piston ring is one of the important parts of the engine. The importance and decisiveness of the light leakage and closed gap detection of the piston ring. The plug ring is mass-produced and requires high efficiency, accuracy and reliability in testing. The working surface of the piston ring shall not have nicks, scratches, or peeling. The outer cylindrical surface and upper and lower end surfaces shall have a certain smoothness, the curvature deviation shall not be greater than 0.02-0.04 mm, and the standard sinking amount of the ring in the groove shall not exceed 0.15-0.25 mm, the elasticity and clearance of the piston ring meet the requirements. In addition, check the light leakage of the piston ring, that is, place the piston ring flat in the cylinder, place a small light bulb underneath, and put a light shield on it, and then observe the light leakage gap between the piston ring and the cylinder wall. Whether the contact is good.