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A fuel pump transmission device and a fuel injection system equipped with the device

A transmission device and fuel pump technology, which is applied in the direction of charging system, fuel injection device, mechanical equipment, etc., can solve the problems of reduced reliability and increased vibration of fuel pump, so as to reduce friction loss, improve operation status, and avoid direct damage. friction effect

Active Publication Date: 2018-11-23
WEICHAI POWER YANGZHOU DIESEL ENGINE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This will increase the vibration of the fuel pump and reduce the reliability

Method used

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  • A fuel pump transmission device and a fuel injection system equipped with the device
  • A fuel pump transmission device and a fuel injection system equipped with the device
  • A fuel pump transmission device and a fuel injection system equipped with the device

Examples

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Embodiment Construction

[0030] The embodiments of the present invention will be described in further detail below in conjunction with the drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0031] In the description of the present invention, unless otherwise specified, "plurality" means two or more. The terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. indicate the orientation or positional relationship: Based on the orientation or positional relationship shown in the drawings, it is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood To limit the present invention.

[0032] Such as figure 2 , image 3 As sho...

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PUM

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Abstract

The invention relates to the technical field of fuel injection system equipment, in particular to a fuel pump transmission device and a fuel injection system equipped with the device. The fuel pump transmission device of the present invention mainly includes a transmission gear, a fixed flange and a fuel pump provided with a camshaft. The transmission gear is set outside the camshaft to drive the camshaft to rotate; When the fixed flange rotates, all the axial force and most of the radial force of the transmission gear can be transmitted to the fixed flange, while only a small part of the radial force is transmitted between the transmission gear and the fuel pump camshaft, which can effectively reduce the vibration and improve the service life of the fuel pump.

Description

Technical field [0001] The present invention relates to the technical field of fuel injection system equipment, in particular to a fuel pump transmission device and a fuel injection system provided with the device. Background technique [0002] The fuel pump is one of the basic components in the fuel injection system of a car. Its function is to suck fuel from the fuel tank, pressurize it and deliver it to the fuel supply pipe, and cooperate with the fuel pressure regulator to establish a certain fuel pressure. [0003] In the prior art, the camshaft of the fuel pump is usually directly connected with the transmission gear, such as figure 1 As shown, the transmission gear 2'is directly mounted on the camshaft 1-1 of the fuel pump 1 through the nut 3'and the half-round key 4'. [0004] However, in the above-mentioned connection method, the transmission gear 2'is directly carried by the camshaft 1-1, and the load of the transmission gear 2'is fully transmitted to the fuel pump 1 by the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02M37/06F02M39/02
CPCF02M37/06F02M39/02
Inventor 韩景峰李超丁晓辉王建军贺园玲
Owner WEICHAI POWER YANGZHOU DIESEL ENGINE
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