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Connecting structure of engine camshaft cover and cylinder cover

A technology of cylinder head cover and connection structure, which is applied to the sealing device of the engine, engine components, machines/engines, etc. It can solve the problems of higher precision requirements and large pressure changes, so as to improve the sealing performance, increase the surface pressure, Effect of improving NVH performance

Inactive Publication Date: 2010-11-17
CHONGQING CHANGAN AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For such a structural form, for a shaft cover with a more complicated sealing band, the sealing pressure between the shaft cover and the cylinder head cover will be affected by the tolerance of the shaft cover sealing band, the tolerance of the cylinder head cover sealing band and the tolerance of the upper plane of the cylinder head. The change value is large, and the precision requirements for related parts such as shaft and cover are higher

Method used

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  • Connecting structure of engine camshaft cover and cylinder cover
  • Connecting structure of engine camshaft cover and cylinder cover
  • Connecting structure of engine camshaft cover and cylinder cover

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Embodiment Construction

[0013] The structure of the present invention is further described in detail below with the connection of the No. 1 bearing cap of the engine camshaft of the VVT ​​on the single intake side and the cylinder head cover as an example:

[0014] Such as figure 1 As shown, a gasket 13 is arranged between the shaft cover 14 and the cylinder head cover 12 of the present invention. Generally, the cylinder head cover 12 and the shaft cover 14 are independently fixed on the upper surface of the cylinder head. When considering the cumulative tolerance, the shaft cover and the There will be a situation where the gasket cannot be fully compacted between the cylinder covers. Such as figure 1 and figure 2 As shown, the shaft cover 14 of the present invention is designed with bolt holes 1, 2, 3, 4, 5 and 7, and the shaft cover 14 and the cylinder head cover 12 are connected by bolts 15. Compared with the general design method, the shaft cover 14 and the cylinder head cover 12 can effectiv...

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PUM

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Abstract

The invention discloses a connecting structure of an engine camshaft cover and a cylinder cover, which comprises a shaft cover, a cylinder cover and a sealing gasket arranged between the shaft cover and the cylinder cover, wherein the shaft cover is connected with the cylinder cover through bolts, the cylinder cover is pressed on the shaft cover; and a reinforced rib is designed on a radical connecting line between bolt holes on the shaft cover. A sealing strip of the shaft cover for sealing the cylinder cover is in arc transition in the horizontal direction and is in a horizontal line shape in the transverse direction, and a reinforced rib is designed below the sealing strip of the shaft cover. The shaft cover is connected with the cylinder cover through the bolts, and therefore, the invention can effectively improve the sealing property of the sealing strip, increases the fixing points of the cylinder cover, and is beneficial to improving the NVH property of the cylinder cover. The reinforced rib between the bolt holes of the shaft cover can better uniformly distribute the pressing force of the bolts on the shaft cover, thereby improving the strength and the rigidity of the shaft cover.

Description

technical field [0001] The invention relates to a camshaft bearing cover of an engine, in particular to a connection method between a camshaft cover and a cylinder head cover. Background technique [0002] The general engine camshaft bearing cap is positioned by the upper surface of the cylinder head and connected with the cylinder head cover with bolts. For such a structural form, for a shaft cover with a more complicated sealing band, the sealing pressure between the shaft cover and the cylinder head cover will be affected by the tolerance of the shaft cover sealing band, the tolerance of the cylinder head cover sealing band and the tolerance of the upper plane of the cylinder head. The variation value is large, and the accuracy requirements for related parts such as shaft and cover are higher. Contents of the invention [0003] The technical problem to be solved by the present invention is to design a connection structure between the engine camshaft shaft cover and the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02F7/00F02F11/00
Inventor 吴国勇韦颂付秋波陈彦刘定全
Owner CHONGQING CHANGAN AUTOMOBILE CO LTD
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