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Fuel pump with acoustic isolation

A fuel pump and solid-borne sound technology, applied to fuel injection pumps, fuel injection devices, liquid fuel feeders, etc., can solve problems such as noise and interference, and achieve the effect of eliminating noise and avoiding the transmission of solid-borne sound

Active Publication Date: 2015-11-25
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this arrangement is disadvantageous because the violent impact of the piston and the resulting pressure pulsations can be transmitted via solid-borne sound to the remaining fuel pump components and the fuel tank and can thus cause audibly disturbing noises

Method used

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  • Fuel pump with acoustic isolation
  • Fuel pump with acoustic isolation
  • Fuel pump with acoustic isolation

Examples

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Embodiment Construction

[0024] Refer to the following figure 1 and 2 A fuel pump 1 or a fuel pump arrangement 11 according to a first preferred embodiment of the present invention will be described in detail.

[0025] as from figure 1 It can be seen that the fuel pump 1 according to the invention comprises a cylinder 2 , a piston 3 arranged in the cylinder 2 , an actuator 4 for operating the piston 3 and a housing 5 . According to the invention, a first damping element 6 and a second damping element 7 are arranged on the housing 5 in order in particular to prevent the transmission of structure-borne noise.

[0026] The housing 5 is substantially pot-shaped with a base region 50 and a wall region 51 , the first damping element 6 being arranged on the base region of the housing 5 and the second damping element 7 being arranged on the wall region 51 of the housing 5 . In particular, the second damping element 7 is arranged at the free end 52 of the wall region 51 of the housing 5 .

[0027] Furtherm...

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PUM

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Abstract

The present invention relates to a fuel pump which comprises a cylinder (2), a piston (3) which is arranged in the cylinder (2), an actuator (4) for operating the piston (3), and a housing (5), wherein the housing (5) is provided with a first damping element (6) and a second damping element (7) to prevent the transfer of solid sound. The present invention further relates to a fuel pump assembly including the fuel pump (1) and a module component (9). Another aspect of the present invention relates to a vehicle, in particular a motorcycle, comprising the fuel pump (1) or the fuel pump assembly (11).

Description

technical field [0001] The invention relates to a fuel pump or a fuel pump arrangement for a vehicle, in particular a motorcycle. Furthermore, the invention relates to a vehicle, in particular a motorcycle, comprising such a fuel pump or such a fuel pump arrangement. Background technique [0002] Such fuel pumps have been disclosed, for example, by GB2478876A. This is a fuel pump in the form of a magnetic piston pump comprising a cylinder, a piston arranged in the cylinder, an actuator for actuating the piston, and a housing. Furthermore, a fuel pump is arranged in the fuel tank. However, this arrangement is disadvantageous because violent impacts of the piston and the resulting pressure pulsations can be transmitted via solid-borne sound to the remaining fuel pump components and the fuel tank and can thus cause disturbing audible noises. Contents of the invention [0003] In contrast, a fuel pump according to the invention having the features of claim 1 has the advanta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B53/16F02M37/04
CPCF02M55/04F02M59/02F02M59/44
Inventor S·韦德曼A·普利施S·芙洛T·绍博
Owner ROBERT BOSCH GMBH
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