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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, low requirements, and improve service life Effect

Active Publication Date: 2016-02-10
众恒汽车部件有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
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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 for motorcycle fuel delivery. A fuel pump and related pipelines are connected into the assembly in a sealed mode, a lower cavity of the assembly is filled with fuel, a high-pressure oil region is formed in an upper cavity through the fuel pump, and finally the whole assembly can be arranged externally. The assembly effectively avoids a fuel turbulence phenomenon caused by gas in the fuel delivery process and reduces flow resistance in a fuel outlet pipe. The assembly is beneficial to uniform convection of heat generated by the fuel pump and increasing of the heat dissipation surface area. It can be ensured that the pressure impact variation range in the working process of a centrifugal pump is stable, and the service life of the fuel pump is prolonged. The requirement for the inventory of fuel in a fuel tank is low, and dismounting, mounting and maintenance are convenient.

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 Applications(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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