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Sealing combination structure for fuel oil system

A technology of combined structure and fuel system, which is applied to the layout, power plant, transportation and packaging combined with the fuel supply of the internal combustion engine, can solve the problems of small sealing area, easy adhesion of the sealing ring, unstable sealing effect, etc., and can achieve flanging. The process is simple, the processing is convenient, and the effect of increasing safety

Active Publication Date: 2016-08-10
CHERY AUTOMOBILE CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, after practical investigation, it is found that the existing sealing structure mainly relies on the line contact between the flange of the fuel port and the sealing ring, which has the disadvantages of small sealing area, easy adhesion of the sealing ring and unstable sealing effect.

Method used

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  • Sealing combination structure for fuel oil system
  • Sealing combination structure for fuel oil system
  • Sealing combination structure for fuel oil system

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Embodiment Construction

[0023] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0024] see figure 1 , which shows a sealing structure 100 for a fuel system according to an embodiment of the present invention. The sealing combination structure 100 includes a fuel filler pipe 10, a fuel filler pipe sealing member 20 and a fuel tank cap 30, the fuel filler pipe sealing member 20 is fixedly connected to the nozzle of the fuel filler pipe 10, and the fuel filler pipe sealing member 20 and the fuel filler pipe 10 are arranged at an angle to each other, The range of the angle α is set between 30° and 60°, and the sealing device 31 on the fuel tank cap 30 and the sealing member 20 of the fuel filler pipe cooperate with each other and are sealingly connected.

[0025] combine Figure 1 to Figure 3 As shown, in an example...

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Abstract

The invention discloses a sealing combination structure for a fuel oil system, and belongs to the field of fuel oil systems of automobiles. The sealing combination structure comprises an oil filling pipe, an oil filling pipe sealing member and a fuel oil tank cover, wherein the oil filling pipe sealing member is fixedly connected with an opening of the oil filling pipe, and an angle is formed between the oil filling pipe sealing member and the oil filling pipe, wherein the setting range of the angle is 30-60 degrees; a sealing device on the fuel oil tank cover is in matching and sealing connection with the oil filling pipe sealing member. According to the sealing combination structure for the fuel oil system provided by the invention, the head of the oil filling pipe is expanded, so that the bevel of the pipe opening of the oil filling pipe and a sealing ring of the fuel oil tank cover are sealed, and a sealing area is enlarged to the maximum extent; besides, the problem that the sealing ring is easy to fall off when being used is also solved; the safety in the using process is improved. The sealing combination structure provided by the invention has the advantages of being simple in stamping technology and flanging technology, convenient to process, easy to popularize, good in generality, low in building cost and the like.

Description

technical field [0001] The invention relates to the field of automobile fuel system, in particular to a sealing combination structure for the fuel system. Background technique [0002] As an important part of the fuel system, the fuel filler pipe plays a guiding role in the process of fuel filling, and cooperates with the fuel tank cap to seal the fuel tank after the fuel filling is completed, and prevents fuel vapor from escaping through the fuel filler nozzle. polluted environment. As well as the potential safety hazards due to the escape of fuel vapor. [0003] The existing sealing structure of the fuel system mainly ensures the sealing effect by controlling the flatness of the flanging of the filling nozzle. However, after practical investigation, it was found that the existing sealing structure mainly relies on the line contact between the flange of the fuel filler and the sealing ring, which has the disadvantages of small sealing area, easy adhesion of the sealing ri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K15/04
CPCB60K15/0406B60K2015/0451
Inventor 肖垂元黄波刘成明
Owner CHERY AUTOMOBILE CO LTD
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