4D94 6144-21-2211 cylinder liner

4D94 6144-21-2211 cylinder liner

A cylinder liner, also known as a cylinder sleeve, is a critical component found in various internal combustion engines. Its purpose is to provide a durable and smooth inner surface within the cylinder block where the piston moves. Cylinder liners are designed to withstand high temperatures, pressures, and frictional forces, ensuring the efficient operation of the engine.

These liners are typically made from materials such as cast iron, aluminum alloy, or steel, chosen for their strength and heat resistance properties. The material selected depends on the specific engine requirements, including the operating conditions and the type of fuel being used. Regardless of the material, cylinder liners undergo precise machining and surface finishing processes to achieve the desired dimensions and surface characteristics.

The installation of a cylinder liner involves placing it into the cylinder block and securing it in place. The liner creates a cylindrical bore that forms the combustion chamber along with the piston, cylinder head, and other engine components. It provides a tight seal to prevent leakage of combustion gases and ensures the efficient transfer of power from the expanding gases to the piston.

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