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Novel oil return structure of fuel pump assembly

A fuel pump and assembly technology, which is applied in the field of fuel pump assembly oil return structure, can solve the problems of complex oil return structure design, assembly process defects, and low product versatility of the fuel pump assembly, so as to facilitate assembly and reduce Difficult process and strong applicability

Pending Publication Date: 2021-02-09
浙江睿峰电喷系统有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention proposes a new type of fuel pump assembly oil return structure, combined with practical problems to solve the complex design defects of the existing fuel pump assembly oil return structure, low product versatility, assembly process defects and various problems in the working process and problems such as inability to repair and disassemble

Method used

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  • Novel oil return structure of fuel pump assembly
  • Novel oil return structure of fuel pump assembly
  • Novel oil return structure of fuel pump assembly

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Embodiment

[0023] Such as Figure 1 to Figure 4 As shown, the present invention discloses that the oil return structure includes an oil storage tank 1 , an oil pump fixing seat 2 , an O-ring 3 , an injection plastic seat 4 , a blocking member (steel ball 5 ), and an injection plug 6 . The steel ball 5 and the injection plug 6 are fixed on the injection plastic seat, the steel ball 5, the injection plug 6 and the injection plastic seat 4 are non-detachable structures, and the injection plastic seat 4 is fixed on the oil storage barrel 1, the injection plastic seat 4 and the oil storage barrel 1 are detachable structures, the oil pump fixing seat 2 and the injection plastic seat 4 are fixedly connected and sealed with an O-ring 3 in the middle, and the above oil pump fixing seat 2, injection The plastic seat 4 and the O-ring 3 are sealed in a detachable structure. The oil return structure of the fuel pump assembly of the present invention has the characteristics of reasonable structural de...

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Abstract

The invention relates to a novel oil return structure of a fuel pump assembly. The novel oil return structure is characterized by comprising a fuel storage barrel, an oil pump fixing seat, an O-shapedsealing ring, an injection plastic seat, a plugging piece and an injection plug; the plugging piece and the injection plug are fixed onto the injection plastic seat; the injection plastic seat is fixed onto the fuel storage barrel; the injection plastic seat and the fuel storage barrel are of a detachable structure; the oil pump fixing seat and the injection plastic seat are fixedly connected andare sealed by the O-shaped sealing ring; and the oil pump fixing seat, the injection plastic seat and the O-shaped sealing ring are of a detachable structure. According to the scheme, the structuraldesign is reasonable, meanwhile, the difficulty of plastic molding process is reduced, assembling is convenient, and applicability is high.

Description

technical field [0001] The invention relates to a fuel pump, in particular to a novel fuel pump assembly oil return structure. Background technique [0002] Fuel pump assembly for automobile is one of the basic components of automobile fuel injection system. The existing fuel pump assembly is composed of oil storage barrel cover, oil storage barrel, oil outlet check valve assembly, oil pump fixing seat assembly, oil pump, inner filter Net, outer filter, oil return plastic seat, pressure regulating valve and ejection assembly and other parts, its function is to pump the fuel out of the fuel tank, and synchronously cooperate with the fuel pressure regulating valve to establish a certain fuel pressure. Finally, the fuel is delivered to the oil supply pipeline so that the engine can work normally. [0003] Due to the complex design of the oil return structure of the existing fuel pump assembly, the low versatility of the product, and the time-consuming and labor-intensive assem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02M37/04F02M37/00
CPCF02M37/0052F02M37/0076F02M37/04
Inventor 陈瑞林陈金勇潘湖茜
Owner 浙江睿峰电喷系统有限公司
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