Sealing structure for ignition plug

A sealing structure and spark plug technology, which is applied in spark plugs, engine sealing devices, spark ignition controllers, etc., can solve problems such as complex structures, and achieve the effects of simple processing and manufacturing, convenient and quick installation, and low cost of parts

Inactive Publication Date: 2015-04-08
CHONGQING GOOGOL ENGINE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the sealing performance of this sealing structure is durable and effective, the structure is relatively complicated, and there is still a need to further improve the sealing performance.

Method used

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  • Sealing structure for ignition plug
  • Sealing structure for ignition plug
  • Sealing structure for ignition plug

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] Below in conjunction with accompanying drawing, the present invention will be further described:

[0016] see figure 1 , figure 2 with image 3 The sealing structure of a spark plug shown includes a cylinder head 1 and a cylinder head cover 6 connected to the cylinder head. The cylinder head is provided with a stepped hole, and the cylinder head cover is provided with a via hole. The via hole corresponds to the stepped hole; it also includes a spark plug 7 whose lower end is matched with the small end of the stepped hole on the cylinder head, and the upper end of the spark plug passes through the via hole on the cylinder head cover. : the inner wall of the lower port portion of the via hole on the cylinder head cover 6 is a tapered surface;

[0017] The bottom of a spark plug sleeve 2 is provided with an external thread 21 and a hexagonal boss 22, and the hexagonal boss is located on the external thread, and the effect of setting the hexagonal boss is convenient...

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PUM

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Abstract

The invention relates to a sealing structure for an ignition plug. The sealing structure comprises a cylinder head and a cylinder head cover, and further comprises an ignition plug, wherein a stepped hole is formed in the cylinder cover; a through hole is formed in the cylinder head cover; the lower end of the ignition plug is connected with the small end of the stepped hole in a matched manner; the inner wall at the lower end opening of the through hole in the cylinder head cover is a conical surface; external threads and a six-rowed lug boss are arranged at the lower part of an ignition plug sleeve; the ignition plug sleeve sleeves the ignition plug; the lower part of the ignition plug sleeve is connected with the large end of the stepped hole in the cylinder head in a matched manner; the upper part of the ignition plug sleeve penetrates through the through hole in the cylinder head cover; a compressing spring sleeve sleeves the middle of the ignition plug sleeve; the lower end of the compressing spring is tightly propped against the six-rowed lug boss at the lower part of the ignition plug sleeve; a gasket sleeves the upper part of the ignition plug sleeve; an O-shaped seal ring sleeves the ignition plug sleeve, is arranged on the gasket, and is clung to the conical surface of the inner wall of the through hole in the cylinder head cover. The sealing structure can prevent machine oil in the cylinder head from entering the ignition plug and leaking out of an engine.

Description

technical field [0001] The invention relates to a sealing structure of a gas engine component, in particular to a sealing structure of a spark plug sleeve used in a gas engine. Background technique [0002] The spark plug of a high-power gas engine is usually installed from the cylinder head cover hole to the cylinder head. A spark plug sleeve must be provided outside the spark plug to prevent the oil inside the cylinder head from flowing onto the spark plug and causing damage to the spark plug; The oil inside the cover leaks from the rocker chamber hole to the outside of the engine. CN 104088746 A discloses "a spark plug sealing structure", which includes a spark plug, a cylinder head, a spark plug steel sleeve and a pressure sleeve. The spark plug is located at the top of the cylinder head, and its bottom is screwed into the cylinder head. The spark plug steel sleeve is set on the spark plug, the cylinder head is connected with the spark plug steel sleeve, and the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02P13/00
CPCF02P13/00F02F11/00F02F11/002
Inventor 温国生刘地长
Owner CHONGQING GOOGOL ENGINE TECH
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