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High-pressure fuel pump for fuel injection system

A fuel injection system and high-pressure fuel pump technology, applied in the direction of fuel injection pumps, fuel injection devices, special fuel injection devices, etc., to achieve the effect of maximum flexibility or variability

Active Publication Date: 2019-02-26
VTESCO TECH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This entails undesirably limiting the flexibility of providing the pump casing, for example where high grade steel rods with small diameters are used

Method used

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  • High-pressure fuel pump for fuel injection system
  • High-pressure fuel pump for fuel injection system
  • High-pressure fuel pump for fuel injection system

Examples

Experimental program
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Embodiment Construction

[0048] figure 1 is a perspective view of a high-pressure fuel pump 10 with which high pressure can be applied to fuel such as gasoline or diesel. The high-pressure fuel pump 10 has a pump housing 12 for accommodating components of the high-pressure fuel pump 10 . The pump housing 12 has a first end region 14 and a second end region 16 . exist figure 1 In the exemplary embodiment shown in , a flange 18 is provided on the pump housing 12 of the high-pressure fuel pump 10 , by means of which flange 18 the pump housing 12 can be fastened to the engine block of the internal combustion engine.

[0049] In the pump housing 12 there is provided a housing bore 20 in which during operation a pump piston 22 is moved in translation between the first end region 14 and the second end region 16 along a movement axis 24 way to move. In the first end region 14 , the housing bore 20 forms a pressure space 26 in which fuel is compressed due to the displacement of the pump piston 22 . Opposi...

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PUM

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Abstract

The invention relates to a high-pressure fuel pump (10) which comprises a pump housing (12), a damper arrangement (34) with a damper housing (36) is laterally arranged on the pump housing (12), the damper housing (36) has a housing depth (38) extending tangentially with respect to the pump housing (12) a housing length (42) extending radially with respect to the pump housing (12). The housing length (42) is greater than the housing depth (38).

Description

technical field [0001] The invention relates to a high-pressure fuel pump for applying high pressure to fuel in a fuel injection system. Background technique [0002] In fuel injection systems a high pressure fuel pump is used to apply high pressure to the fuel, by means of which fuel is injected into the combustion chamber of an internal combustion engine, where, for example, in a gasoline internal combustion engine, the pressure is between 150 bar and 400 bar, and in diesel internal combustion engines the pressure is in the range from 1500 bar to 2500 bar. The higher the pressure that can be generated in the respective fuel, the lower are the emissions generated during combustion of the fuel in the combustion chamber, which is particularly advantageous against the background that a greater reduction in emissions is desired. [0003] In order to be able to achieve high pressures in the respective fuels, high-pressure fuel pumps are usually embodied as piston pumps, wherein...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02M55/04F02M59/44
CPCF02M55/04F02M59/44F02M59/025F02M2200/26F02M2200/315F02M2200/8053F02M2200/8084F04B9/042F04B11/0016F04B53/16
Inventor Y.米哈伊洛夫Y.库尔特
Owner VTESCO TECH GMBH