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Engine fuel injector installation positioning structure

A technology for installation and positioning and fuel injectors, which is applied to engine components, machines/engines, fuel injection devices, etc., can solve problems such as oil seal leakage, and achieve the effects of improving combustion, reducing costs, and simple structure

Inactive Publication Date: 2015-08-12
CHONGQING GOOGOL ENGINE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In this way, the fuel injector must be installed inside the cylinder head cover. There is a problem of oil seal leakage between the fuel injector and the cylinder head cover. When replacing the fuel injector, the cylinder head cover must be removed before the fuel injector can be replaced.

Method used

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  • Engine fuel injector installation positioning structure
  • Engine fuel injector installation positioning structure
  • Engine fuel injector installation positioning structure

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Embodiment Construction

[0019] The present invention will be described in detail below with reference to the accompanying drawings and preferred embodiments, but it should be understood that the protection scope of the present invention is not limited by the specific embodiments.

[0020] see Figure 1 to Figure 7 , the installation and positioning structure of a fuel injector for an engine includes a piston 1, a cylinder head 2, a fuel injector 3 and a cylinder head cover 6, and its prominent feature is that a ladder is provided on the cylinder head 2 Slanted hole, the lower part of the stepped slanted hole is located at the center of the cylinder head, and the upper part is located outside the cylinder head cover 6, so that the fuel injector avoids the cylinder head cover; the centerline of the stepped slanted hole is perpendicular to the The included angle of the direction is X3°; the fuel injector 3 is matched with the stepped inclined hole and the lower end corresponds to the piston 1 .

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Abstract

The invention relates to an engine fuel injector installation positioning structure comprising a piston, a cylinder head, a fuel injector and a cylinder head cover. The structure is characterized in that the cylinder head is provided with a ladder inclined hole of which the lower part is located in the center of the cylinder head and the upper part is located outside the cylinder head cover; the centerline of the ladder inclined hole and the vertical direction form an included angle of X3 degrees; and the fuel injector fits the ladder inclined hole, and the lower end of the fuel injector corresponds to the piston. By changing the installation position of the fuel injector, the problem that the seal between the fuel injector and the cylinder head cover leaks engine oil is solved. The fuel injector can be replaced without detaching the cylinder head cover. Installation and maintenance are convenient.

Description

technical field [0001] The invention relates to an installation and positioning structure of engine components, in particular to an installation and positioning structure of an engine fuel injector. Background technique [0002] At present, under normal circumstances, the engine fuel injector is installed in the center of the cylinder head and is perpendicular to the bottom surface of the cylinder head. In this way, the fuel injector must be installed inside the cylinder head cover. There is a problem of oil seal leakage between the fuel injector and the cylinder head cover. When replacing the fuel injector, the cylinder head cover must be removed before the fuel injector can be replaced. CN 203175736 U The utility model discloses a fuel injector fixing structure, including a cylinder head, a fuel injector, bolts, a fixing plate, a spherical washer, a flange nut, and a high-pressure oil inlet connecting pipe, and the holding feature is located in the middle of the fuel injec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02M61/14
Inventor 温国生刘地长
Owner CHONGQING GOOGOL ENGINE TECH
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