Engine cylinder cover and processing method thereof

Abstract

The invention relates to an engine, in particular to an engine cylinder cover and a processing method thereof. The invention provides the following technical scheme that the engine cylinder cover comprises a cover body with an upper part and a lower part, wherein the upper part is larger than the lower part; an installation hole adaptive to a piston is formed in the lower part; an assembling installation hole is formed in the upper part; the cross section of the installation hole is in a conical shape; one end, close to the upper part, of the installation hole is a small end; the other end ofthe installation hole is a big end; and an included angle between the small end and the big end is 1 degrees to 2 degrees. By adopting the technical scheme, the invention provides the engine cylindercover and the processing method thereof; and according to the engine cylinder cover, the friction coefficient between the installation hole and the piston is low, the energy consumption is reduced, and the structure is simple.

Description

technical field [0001] The invention relates to an engine, in particular to an engine cylinder head and a processing method thereof. Background technique [0002] The cylinder head of the engine is installed on the cylinder block and forms a fuel chamber with the cylinder block. It is often in contact with high-temperature and high-pressure gas, so it needs to bear large thermal and mechanical loads. [0003] The traditional cylinder head is mainly composed of a cover body consisting of an upper part larger than the inner wall of the cylinder and a lower part connected with the upper part and adapted to the inner wall of the cylinder. The upper part is provided with a mounting hole adapted to the piston. [0004] When the cylinder head is processed and assembled, since the cylinder head and the cylinder body need to be locked by fasteners, the torque during locking will cause deformation of the mounting hole, loss of the circumference during processing, and high friction wh...

AI Technical Summary

Problems solved by technology

[0004] When the cylinder head is processed and assembled, since the cylinder head and the cylinder body need to be locked by fasteners, the torque during locking will cause the deformation of the mounting hole, loss of the circumference during processing, and high friction when the piston cooperates with it. , on the one hand, it is susceptible to wear, on the other hand, it will also cause greater resistance, making the engine more energy-consuming

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