Apparatus for transporting fuel

A fuel and output channel technology is applied in the field of devices for conveying fuel to achieve the effects of simple assembly and reduced manufacturing costs

Inactive Publication Date: 2012-05-30
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage is that the characteristic curve of the pressure regulator is negatively influenced by the pressure depending on the suction jet pump and the throttle valve

Method used

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  • Apparatus for transporting fuel
  • Apparatus for transporting fuel
  • Apparatus for transporting fuel

Examples

Experimental program
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Effect test

Embodiment Construction

[0012] figure 1 A device for conveying fuel with a drive line component according to a first exemplary embodiment is shown in section.

[0013] The device for delivering fuel is arranged in fuel tank 1 and delivers fuel from fuel tank 1 under increased pressure via pressure line 3 to internal combustion engine 4 by means of a delivery unit 2 , for example an electrically operated fuel pump.

[0014] The delivery unit 2 is arranged in a storage container 5 which maintains sufficient fuel for the delivery unit 2, so that the delivery unit is even in the low-fill state of the fuel tank 1 and when accelerating, braking, cornering and / or Fuel can be pumped when climbing hills.

[0015] From the pressure line 3 of the device branches a drive line 8 which drives a suction jet pump 9 for actively filling the storage container 5 . The drive line 8 can obviously also be supplied with fuel by a return (not shown) of the internal combustion engine 4 or in some other way. The drive line...

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PUM

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Abstract

Disclosed is an apparatus for transporting fuel, comprising a suction jet pump and a drive pipeline for supplying fluid to the suction jet pump, wherein the drive pipeline is internally provided with a pressure adjusting valve; only when the pressure inside a pressure pipeline is beyond the preset-value of the pressure inside the pressure pipeline, does the pressure adjusting valve operate the suction jet pump; and a throttle valve arranged at the downstream of the pressure adjusting valve limits the pressure inside the drive pipeline. According to the invention, a pressure adjusting valve and a control valve are integrated inside a drive pipeline member, thereby creating a compact function unit with low costs. According to the invention, a control valve (17) is arranged at the downstream of a pressure adjusting valve (16) inside the drive pipeline (8). The control valve controls the pressure inside the drive pipeline to be above the preset value. The pressure adjusting valve (16) and the control valve (17) are arranged upon a common drive pipeline member (18).

Description

technical field [0001] The invention relates to a device for delivering fuel. Background technique [0002] From DE 100 06 622 A1 a device is known for conveying fuel with a suction jet pump, a drive line that supplies the suction jet pump with fluid and with a pressure regulating valve arranged in the drive line, which pressure control valve The suction jet pump is only operated above a predetermined pressure in the pressure line supplying the drive line. A throttle valve downstream of the pressure regulating valve limits the pressure in the drive line. A disadvantage is that the characteristic curve of the pressure regulator is negatively influenced by the pressure as a function of the suction jet pump and the throttle valve. Contents of the invention [0003] On the contrary, the device according to the invention has the advantage that an influence on the characteristic curve of the pressure regulator is avoided by providing a control valve downstream of the pressure ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02M37/02
CPCF02M37/025F02M37/106
Inventor M·拜尔H-P·布劳恩M·屈恩L·屈尔曼
Owner ROBERT BOSCH GMBH
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