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Engine sealing structure

A sealing structure and engine technology, which is applied to the sealing device of the engine, engine components, machines/engines, etc., to achieve the effect of improving satisfaction and good sealing effect

Active Publication Date: 2016-08-17
SAIC GENERAL MOTORS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the defects in the prior art and provide an engine sealing structure that solves the sealing problem caused by the relatively large relative displacement between parts in the T-shaped area of ​​the engine and has a good sealing effect.

Method used

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Embodiment Construction

[0030] The specific implementation manner of the present invention will be further described below in conjunction with the accompanying drawings. Wherein the same components are denoted by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the drawings, and the words "inner" and "outer ” refer to directions towards or away from the geometric center of a particular part, respectively.

[0031] Such as Figure 1-2 As shown, the engine sealing structure provided by an embodiment of the present invention includes a first part 1, a second part 2 and a third part 3, wherein the second part 2 and the third part 3 are arranged on the first part side of piece 1.

[0032] A first gap 6 is formed between the first part 1 and the second part 2 and the third part 3, a second gap 7 is formed between the second part 2 and the third part 3, and the first gap 6 and...

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Abstract

The invention discloses an engine sealing structure. The engine sealing structure comprises a first part, a second part and a third part, wherein the second part and the third part are arranged on one side of the first part; a first gap is formed among the first part, the second part and the third part, a second gap is formed between the second part and the third part, and the first gap and the second gap are arranged in a T shape and are internally coated with RTV (room temperature vulcanized silicone rubber) used for sealing; a first groove is formed in the bottom surface, close to the first gap, of the first part, the width of the first groove is larger than that of the second gap, and a projection of the second gap to the first groove is formed in the first groove; the first groove is filled with acrylate rubber used for sealing. With the adoption of the T-shaped area sealing technical scheme jointly formed by the RTV silica gel and the acrylate rubber, the sealing effect is improved, and the degree of satisfaction of a customer for the overall performance of an engine is greatly improved.

Description

technical field [0001] The invention relates to the automotive engine sealing technical field, in particular to an engine sealing structure. Background technique [0002] The cylinder block, cylinder head, front cover or cylinder block, cylinder head, and oil pan of the automobile engine are usually 100% coated with silicone to achieve sealing. On the one hand, the price of silica gel is affordable. On the other hand, the T-shaped area is usually composed of three parts. The dimensional deviation of each part will form a large gap or interference, and this part of the gap can only be closed by silica gel. Filling plays a sealing role, and ordinary rubber sealing gaskets do not have this function. [0003] However, many engine manufacturers now encounter leakage in the T-shaped area, which usually manifests itself in vehicle tests and engine bench tests. [0004] In the previous Chinese patent application documents (application number 201010576293X), it is also mentioned th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02F11/00
CPCF02F11/00F02F11/002
Inventor 梅本付尹建民王立新胡斌张素秋黄兆春侯金华
Owner SAIC GENERAL MOTORS