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External fuel pump assembly

A fuel pump, external technology, applied in the direction of liquid fuel feeder, engine components, machines/engines, etc., can solve problems such as complex installation and fixed structures, achieve stable pressure impact range, avoid fuel turbulence, dismantle Easy installation and maintenance

Active Publication Date: 2018-06-12
众恒汽车部件有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage is that there are certain requirements for the oil volume and oil level in the fuel tank, and a complex installation and fixing structure needs to be set in the fuel tank

Method used

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Embodiment Construction

[0025] Next, with reference to the accompanying drawings, through the description of the embodiments, the shape, structure, mutual position and connection relationship between each part, the function and working principle of each part involved in the specific embodiment of the present invention will be further described. detailed instructions.

[0026] Such as figure 1 As shown, the external fuel pump assembly is composed of an upper end cover, a lower end cover, and a barrel sealed connection. Wherein the upper and lower end covers and the barrel are fastened by bolts. The upper and lower end caps and the barrel together form the main body 10 of the fuel pump assembly, and an accommodating section 12 is formed inside the main body 10 for arranging various components. A partition 11 is provided in the accommodating section 12 , and the partition 11 divides the accommodating section 12 into a relatively closed upper chamber 122 and a lower chamber 124 . An oil inlet pipe 13 ...

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Abstract

The invention relates to the field of liquid delivery, in particular to an external fuel pump assembly used for motorcycle fuel delivery. By sealing the fuel pump and other related pipelines into an assembly, filling the lower cavity of the assembly with fuel, and forming a high-pressure oil zone in the upper cavity through the fuel pump, the externalization of the entire assembly is finally realized. The assembly can effectively avoid fuel turbulence caused by gas during fuel delivery and reduce flow resistance in the fuel outlet pipe. Helps to even out the heat generated by the fuel pump and increase the surface area for heat dissipation. It can ensure the stable range of pressure shock variation of the centrifugal pump during the working process, and improve the service life of the fuel pump. It has low requirements on the amount of fuel in the fuel tank, and is easy to disassemble and maintain.

Description

technical field [0001] The invention relates to the field of liquid delivery, in particular to an external fuel pump assembly used for motorcycle fuel delivery. Background technique [0002] Chinese Patent Publication No. CN101865057B, published on December 28, 2011, the name of the invention is an electric fuel pump assembly, and the application discloses a fuel pump built in a fuel tank. Its shortcoming is that there are certain requirements on the oil volume and oil level in the fuel tank, and it is necessary to arrange a complicated installation and fixing structure in the fuel tank. [0003] Fuel pump is a professional term in the automobile and motorcycle parts industry, and it is one of the basic components of the fuel injection system of EFI vehicles. The fuel pumps of current motorcycles are mostly arranged in the fuel tank, and the fuel in the fuel tank is delivered to the engine. The function is to suck the fuel out of the fuel tank, pressurize it and deliver it...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02M37/08
Inventor 蔡国伟陆建兴占双林
Owner 众恒汽车部件有限公司
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