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end cap

A technology of end cap and front face, applied in the direction of machine/engine, mechanical equipment, low pressure fuel injection, etc., can solve problems such as cost increase

Active Publication Date: 2021-04-27
USUI KOKUSAI SANGYO KAISHA LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, in order to hardly cause breakage under internal pressure load, it is necessary to form the rail main body to have a thick wall, resulting in an increase in cost

Method used

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Embodiment 1

[0036] The following will refer to figure 1 Embodiment 1, which is the first invention of the present application, will be described. First, (1) is an end cover, and the front end side is an insertion portion (3) to the track main body (2). In addition, the outer circumference of the base end (4) of the end cover (1) is provided with an abutment flange (5). Therefore, when the outer diameter of the insertion part (3) is formed to be approximately equal to the inner diameter of the rail body (2), and the insertion part (3) is inserted into the rail body (2), it is configured as a rail A state where the inner peripheral surface (6) of the main body (2) is in contact with the outer peripheral surface (7) of the insertion portion (3).

[0037] In addition, an engagement groove (10) is provided on the front end side of the insertion portion (3) of the above-mentioned end cover (1). Such as figure 2 As shown, the engaging groove (10) is composed of a pair of side surfaces (11) ...

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PUM

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Abstract

When the insertion part of the end cover is inserted and arranged at the end of the rail main body and brazed and fixed with a brazing material ring, brazing can be reliably performed by properly arranging the brazing material ring, and at the same time, during internal pressure load , it is difficult for the main body of the track to be damaged. Solution: On the end cover that is inserted into the inner side of the end of the track main body 2 and fixed by brazing on the inner periphery of the track main body 2, it is composed of a pair of side surfaces 11, 12 and a bottom surface 13 and can be engaged with a brazing material. The engagement groove 10 of the ring 15 is provided on the outer periphery of the insertion portion 3 of the entry rail body 2 .

Description

technical field [0001] The invention relates to an end cover, which is fixedly arranged on the end of a fuel rail of a gasoline direct injection engine by brazing. Background technique [0002] So far, as in Patent Document 1 figure 2 As shown in paragraph 0004, there is known a method of inserting the end cap into the end of the rail body and brazing it. As an example of brazing the end caps to both ends of the rail body of the fuel rail in such a manner, for example, as Figure 5 As shown, there is known a method in which the inner surface of the end portion of the rail body (30) is cut to provide a stepped portion (31), and a brazing material ring (32) is inserted into the stepped portion (31) ), the insertion portion (34) of the end cover (33) is inserted into the end portion of the track main body (30), and brazing is performed in this state. [0003] Patent Document 1: Japanese Patent Application Laid-Open No. 2016-37928 Contents of the invention [0004] The pro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02M55/02
CPCF02M55/025F02M69/465F02M2200/8084F02M55/005F02M55/02F16L55/115
Inventor 室伏贤吾神田孝则
Owner USUI KOKUSAI SANGYO KAISHA LTD