Classification of cylinder liners for automobile engines_Yucheng Wantong Power Machinery Parts Co., Ltd

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Hyundai cylinder liner

Classification of cylinder liners for automobile engines

2022-09-22 15:10

The outer surface of the dry cylinder liner is not in direct contact with the coolant, and its wall thickness is 1~3mm, in order to ensure the heat dissipation effect and the positioning of the cylinder liner. The outer surface of the cylinder liner and the inner surface of the cylinder liner hole of the cylinder block have high machining accuracy, and a certain amount of interference is used to fit the cylinder into the cylinder liner hole.
Features: It is not easy to leak water, the leaking cylinder center distance is small, the structure is compact, the rigidity of the cylinder body structure is good, the service life is long, and it does not contact the coolant.

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Disadvantages: poor heat dissipation, inconvenient maintenance and replacement. Mostly used for small engines.
For wet cylinder liner, the outer surface of which is in direct contact with cooling water, the wall thickness is generally 5~9mm.
Features: There is no closed water jacket on the cylinder block, which is easy to cast, easy to repair and replace, and has a good heat dissipation effect.
Disadvantages: The rigidity of the cylinder block is poor, which is prone to cavitation, air leakage, water leakage, poor life and poor sealing.
It is mostly used on large and aluminum alloy cylinder blocks. The water channel hole is larger than the oil channel hole, the smaller the oil channel hole, the greater the pump oil pressure and the better the lubrication effect.

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