MITSUBISHI Engine Parts 6D14 Piston Rings ME032071

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

The main functions of piston rings in engines 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.

What is a piston ring?

Between the piston and cylinder, the piston ring is a part that is needed for an engine to work efficiently. Piston Rings have 2 main functions.

Piston ring function 1: Heat conduction function

Function that releases heat from the piston to the cylinder

When the gas explodes, the temperature inside the piston reaches a heat of approximately 300 degrees Centigrade. If that heat remains inside the piston, the engine may be damaged, so that heat must be released from the interior. The piston ring helps to do that.

Function 2: Piston attitude support

Function that prevent the piston making strong contact with the cylinder wall

If the piston is at an angle, as it moves it makes contact with various places, and this can cause engine damage. The piston ring supports the piston so the piston can travel smoothly up and down.