What are the functions of cylinder liner cylinder head and cylinder head gasket?
1.What is the role of the cylinder head and cylinder sleeve?
The cylinder sleeve is a cylindrical part, which is placed in the cylinder body hole of the engine body, and is pressed and fixed by the cylinder head. The piston reciprocates in its inner hole and is cooled by cooling water outside. The functions of cylinder liner are:
1. Working space of cylinder is composed of cylinder head and piston.
2. The cylinder liner of the cylindrical piston diesel engine bears the piston side thrust, which becomes the lead of the piston reciprocating movement.
3. Transfer the heat of the piston assembly and itself to the cooling water to make it work at a proper temperature.
4. The cylinder liner of the two-stroke diesel engine is equipped with air ports, which are opened and closed by the piston to realize gas distribution.
2.What is the function of cylinder head
The function of the cylinder head is to seal the cylinder, form a combustion space with the piston, and bear the effect of high temperature and high pressure gas. The cylinder head bears the mechanical load caused by the gas force and the fastening of the cylinder bolts, and also bears a high thermal load due to the contact with high-temperature gas. In order to ensure the good sealing of the cylinder, the cylinder head shall neither be damaged nor deformed. To this end, the cylinder head should have sufficient strength and rigidity.
3.Function of cylinder gasket
The function of cylinder head and cylinder sleeve is generally to replace the cylinder gasket when the cylinder gasket is not sealed, oil leakage, aging and there is water in the oil.
The cylinder gasket is a component between the cylinder head and the cylinder block. The function of the cylinder gasket is to fill the gap between the cylinder block and the cylinder head, ensure the good sealing of the contact surface, so as to keep the engine combustion chamber in a sealed state, and also prevent the occurrence of cylinder leakage and water jacket leakage. With the continuous development of the engine, the thermal load and mechanical load of the engine are increasing, and the sealing performance of the cylinder gasket is required to be higher and higher. The cylinder gasket must be made of materials that are resistant to high temperature, high pressure and corrosion. At the same time, it must have certain elasticity, which can flexibly supplement the unevenness of the joint surface, maintain the tightness of the combustion chamber at all times, and ensure the good service life of the engine.
