Hello friends,

In this video we are going to see what is Piston ring, what are the function of piston rings, material of ring and its types.

A piston ring is a metallic ring that is attached to the outer diameter of a piston in an internal combustion engine.

The main functions of piston rings are:
1. Sealing the combustion chamber so that there is minimal loss of gases to the crank case.
2. Improving heat transfer from the piston to the cylinder wall.
3. Maintaining the proper quantity of the oil between the piston and the cylinder wall
4. Regulating engine oil consumption by scraping oil from the cylinder walls back to the sump.

Piston rings are commonly made from cast iron. Cast iron retains the integrity of its original shape under heat, load, and other dynamic forces.

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