What car parts establish a seal between the piston and cylinder wall, preventing combustion gases from entering the oil sump?
Answer Piston rings
A piston ring is a metallic split ring affixed to the piston's outer diameter in an internal combustion engine. The piston rings help seal the combustion chamber to minimize gas leakage into the crankcase, enhance heat transmission between the piston and cylinder wall, and keep the correct amount of oil between the piston and cylinder wall.
Asked by Vasilii Kulev · Last updated 3 years ago · 8.5K views · SOURCE
