Three-layer cylinder gasket for engine

A technology of cylinder head gasket and engine, which is applied in the direction of engine components, machine/engine, engine sealing device, etc., can solve problems such as affecting reliability, inaccurate compression of cylinder head gasket, and sealing failure.

Inactive Publication Date: 2012-12-12
ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The deformation of the cylinder head will not only affect its own reliability, but more importantly, it will cause the cylinder gasket to be compressed incorrectly, thus causing the seal to fail

Method used

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  • Three-layer cylinder gasket for engine
  • Three-layer cylinder gasket for engine
  • Three-layer cylinder gasket for engine

Examples

Experimental program
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Effect test

Embodiment

[0024] see figure 1 and figure 2 , The cylinder gasket of the engine is a three-layer cylinder gasket composed of an upper metal plate 1, a supporting layer metal plate 2 and a lower metal plate 3. The upper metal plate 1, the supporting layer metal plate 2 and the lower metal plate 3 are fixed together by riveting. There are more than two cylinder holes, oil holes, water holes, oil and gas through holes and bolt holes on the three-layer cylinder gasket, and the corresponding upper and lower metal plates at the circumference of each cylinder hole are respectively provided with circular arcs. Shaped cylinder hole sealing rib 4, water hole sealing rib 5. The distance between the bottom of the cylinder hole sealing rib arc on the upper metal plate and the lower surface of the upper metal plate or the distance between the top of the cylinder hole sealing rib arc on the lower metal plate and the upper surface of the lower metal plate is the cylinder hole sealing rib Height, both...

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PUM

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Abstract

The invention relates to a cylinder gasket of an engine. The three-layer cylinder gasket comprises an upper layer metal plate, a support layer metal plate and a lower layer metal plate; circular cylinder hole sealing ribs are arranged at the circumference of the upper layer metal plate and the lower layer metal plate; the upper surface and lower surface of the support layer metal plate form a cylinder hole retainer at the circumference of a cylinder hole; and the front end area and rear end area of the support layer metal plate form a front end retainer and a rear end retainer respectively. The height of the cylinder hole retainer is changeable, so the contact pressure between the sealing ribs of the cylinder gasket and a cylinder cover as well as a cylinder body is uniform; and the front end retainer and the rear end retainer can counteract a part of the upward bending deformation of the cylinder cover resulted from the explosion of pressure, namely, the longitudinal bending deformation of the cylinder cover can be reduced, thus the sealing reliability of the cylinder gasket and the flexible life of the cylinder cover can be improved conveniently.

Description

technical field [0001] The invention belongs to the technical field of internal combustion engines, and in particular relates to a cylinder gasket structure of the engine. Background technique [0002] The function of the cylinder gasket is to ensure the reliable sealing of gas, oil and water during the normal operation of the internal combustion engine. Its working mechanism is to press the cylinder head against the cylinder gasket through the axial force formed by the tightening of the cylinder head bolts. When the sealing ribs arranged on the cylinder head gasket are compressed by the cylinder head, they will produce elastic deformation and form contact pressure with the cylinder head, so as to realize reliable sealing of air, oil, water and other media. During the working process of the engine, especially around the cylinder bore, in order to achieve reliable sealing of the cylinder head gasket, the contact pressure must reach a certain value, and the contact pressure s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02F11/00
Inventor 章家续李欢刘彤杨林强陈园明张应兵陈亮姚巍张建操
Owner ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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