Why an engine cylinder liner is so important?

1. Wear Resistance: Because the cylinder liner comes into direct contact with piston rings, it is subjected to high temperatures, pressures, and friction. To withstand such conditions and to ensure a long life, it is important that the liner has excellent wear resistance.
2. Heat Dissipation – The liner is designed to dissipate heat produced during combustion. It conducts heat from the combustion chamber to prevent overheating. Proper heat dissipation is important for maintaining the engine’s temperature at a healthy level and preventing damage to other components.
3. Lubrication: A smooth surface is provided by the cylinder liner for the piston rings. It retains the lubricating oils around the piston rings to reduce friction and wear. This also optimizes the oil consumption in the engine.
4. Corrosion Resistant: The liner protects against corrosion due to the combustion process and chemical reactions between the coolant and the liner. It helps to preserve the engine’s integrity and durability by providing a barrier that separates the combustion gasses from the engine block.
5. Compression and sealing: The cylinder liners play a vital role in maintaining the proper compression inside the combustion chamber. It forms a tight seal with the piston rings, which prevents the loss of compressed gases.