Water-cooled engine block cylinder head assembly

Abstract

The invention relates to a cylinder block and cylinder end assembly of a water cooled engine. The cylinder block and cylinder end assembly of the water cooled engine comprises a cylinder end body and a cylinder block body with a cylinder hole; cylinder end water channels are formed in the end surface of one end of the cylinder end body; water outlets communicating with the cylinder end water channels are formed in the other end of the cylinder end body; cylinder block water channels which are in annular cavity shapes and surround the cylinder hole are formed in the end surface of one end of the cylinder block body; water inlets communicating with the cylinder block water channels are formed in the other end of the cylinder block body; the cylinder end body is detachably connected to the cylinder block body; the cylinder end water channels communicate with the cylinder block water channels; an annular cylindrical supporting ring body is arranged at openings of the cylinder block water channels; the annular inner side of the supporting ring body is fixedly connected to the annular inner sides of the cylinder block water channels; a plurality of racks which are distributed in the circumferential direction of the supporting ring body and protrude outwards are arranged on the annular outer side of the supporting ring body; and the outer sides of the racks are fixedly connected to the annular outer sides of the cylinder block water channels. The cylinder block and cylinder end assembly of the water cooled engine is firmer and more resistant to pressure, deformation caused by the external force can be avoided, the phenomena of oil burning, cylinder bore scuffing and the like of the engine can be reduced, the heat dissipation effect can be better, and the stability of the engine can be effectively improved.

Description

technical field [0001] The invention relates to the field of water-cooled engines, in particular to a water-cooled engine block cylinder head assembly. Background technique [0002] At present, in the engine field, the cylinder block is the main part of the engine, which integrates the cylinder and the crankcase, and is the supporting framework for installing the piston, crankshaft and other parts and accessories. Among them, the working conditions of the cylinder block are very harsh, and it has to bear the sharp changes of pressure and temperature during the combustion process and the strong friction of the piston movement. Therefore, it should have the following properties: [0003] ①It has sufficient strength and rigidity, small deformation, and ensures the correct position of each moving part, normal operation, and low vibration and noise. [0004] ②Good cooling performance. [0005] ③ wear-resistant to ensure that the cylinder has a sufficient service life. [0006...

AI Technical Summary

Problems solved by technology

[0007] However, the contact area between the cooling water and the cylinder block is limited, resulting in unsatisfactory heat dissipation; and due to the limitation of the manufacturing process, the cooling water channel part of the cylinder block is set in the air, which makes it very easy for the engine to make the cylinder block during operation. The hole is deformed, resulting in high oil consumption, engine scuffing and other failures

In particular, when the motorcycle water-cooled engine cylinder is in use, oil burning and cylinder scuffing often occur. After inspection by professional technicians, it is largely caused by the deformation of the cylinder bore of the motorcycle cylinder, because the cooling channel part of the water-cooled cylinder 2 The working part of / 3 is suspended, and it is easy to deform under the action of force, which causes the above phenomenon when the motorcycle is running

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