Auto Parts MITSUBISHI Piston Ring 4D35 ME996628

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 :Seal for combustion gas

Function is to fully maintain in-cylinder airtightness between the piston and cylinder wall

It works hard to keep a lid on combustion gas leaking into the gap between the piston and cylinder created at the time of an explosion.
If combustion gas leaked, full power could not be realized and fuel consumption would increase, which is detrimental both economically and environmentally.

Function 2: Control lubricating oil (engine oil)

Function to constantly create the minimum required lubricating oil layer to prevent burn

Inside an engine's cylinder, the piston ring is subject to high-temperature combustion gas, and, with the piston, must travel and return many thousands of times a minute, or even more.

To ensure the piston ring and cylinder do not burn, and to prevent excess lubricating oil getting inside the combustion chamber, the cylinder wall lubricating oil layer is controlled at the minimum required.

Engine piston rings are critical components in an internal combustion engine that help seal the combustion chamber, prevent leakage of gases, and reduce friction between the piston and cylinder wall. When subjected to high temperatures and pressures, piston rings must maintain their shape, strength, and sealing properties to ensure optimal engine performance.

At high temperatures and pressures, piston rings must be able to withstand the extreme conditions without deforming or losing their sealing ability. High-quality piston rings are typically made from materials such as cast iron, steel, or high-performance alloys that have high heat resistance and excellent wear characteristics.

The sealing performance of piston rings is crucial for maintaining proper compression in the combustion chamber and preventing leakage of gases. A tight seal between the piston rings and cylinder wall ensures efficient combustion, optimal fuel efficiency, and reduced emissions. If the piston rings fail to seal properly, it can lead to loss of compression, reduced engine power, increased oil consumption, and potential engine damage.

In terms of engine performance, piston rings play a significant role in reducing friction between the piston and cylinder wall. Properly functioning piston rings help minimize wear on the cylinder wall and piston, improve engine efficiency, and enhance overall performance. However, if the piston rings wear out or fail to seal properly, it can result in increased friction, reduced engine power, and potential engine failure.

Overall, the performance of Engine Piston rings at high temperatures and pressures is critical for maintaining engine efficiency, reliability, and longevity. Proper selection, installation, and maintenance of high-quality piston rings are essential for ensuring optimal engine performance and preventing potential issues related to sealing, friction, and wear.