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Fuel delivery device

一种燃料输送、燃料喷射装置的技术，应用在燃料喷射装置、燃料喷射泵、低压燃料喷射等方向，能够解决高驱动功率需求、需要电的控制装置和传感器装置等问题，达到减少燃料消耗、节省成本的效果

Inactive Publication Date: 2013-03-27
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This makes it possible to achieve a fuel delivery rate of the delivery pump that is adapted to the operating conditions, but it has a high drive power requirement and requires electrical control and sensor systems

Method used

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  • Fuel delivery device
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Examples

Experimental program
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Embodiment Construction

[0020] figure 1 A schematic diagram of a fuel delivery device corresponding to a first embodiment of the present invention is shown. The fuel delivery device has a delivery pump 10 which draws fuel from a storage container 12 . The fuel is delivered via the delivery pump 10 to the intake side of at least one high-pressure pump 16 which is likewise part of the fuel delivery system. The delivery pump 10 can be driven mechanically by a motor or a high-pressure pump via clutches, gears or toothed belts. Alternatively, delivery pump 10 can have an electric drive which can be operated with varying power and thus variable rotational speed or with constant power and rotational speed.

[0021] Fuel is delivered by the at least one high-pressure pump 16 into a high-pressure region 18 of the fuel delivery device, which includes, for example, a high-pressure accumulator 18 . One or more injectors 20 are supplied with fuel from the high-pressure region 18 , one injector 20 being assigne...

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PUM

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Abstract

The invention proposes a fuel delivery device for a fuel injection device of an internal combustion engine, having a delivery pump (10) and having at least one high-pressure pump (16). By means of the delivery pump (10), fuel from a storage container (12) is delivered to the suction side of the high-pressure pump (16), and fuel is delivered into a high-pressure region (18) by the high-pressure pump (16). The delivery pump (10) has an adjustable displacement volume, which means that a variable quantity of fuel can be conveyed at the same rotational speed.

Description

technical field [0001] The invention relates to a fuel delivery device for fuel injection of an internal combustion engine as stated in the preamble of the independent claim. Background technique [0002] Such a fuel delivery device and its mode of function are known from the series publication Diesel Accumulator Injection System Common Rail (ISBN 978-3-86522-010-3) or EP 1 195 514 A2 from Robert Bosch GmbH. The fuel delivery device has an electrically driven delivery pump, via which fuel is delivered to the intake side of the high-pressure pump. The fuel is delivered by the high-pressure pump to a high-pressure region from which at least one injector of the fuel injection device is supplied with fuel at least indirectly. An electrical control unit is provided, which receives a signal of the pressure in the high-pressure region via the sensor unit. The electrical drive of the delivery pump can be variably controlled by means of the electrical control device, whereby the fu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02M63/02F02M69/54F02M59/20F02M59/22F02M59/36
CPCF02M63/025F02M69/02F04C14/22F04C11/00F04C2/3442F04C14/26F02M37/00F04C14/02F02M63/024F02M59/20F02M59/22F02M59/36F02M63/02F02M69/54
Inventor J·克劳斯G·法伊特A·佐梅雷尔S·迈尔-扎尔费尔德
Owner ROBERT BOSCH GMBH