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Fuel supply system

A fuel supply system and technology for supplying systems, which are applied in charging systems, fuel injection devices, liquid fuel feeders, etc., can solve the problems of difficult components, complex structures, and generation of sealing points, etc., and achieve improved accessibility and structural Simplified, number-reduced effects

Inactive Publication Date: 2014-10-15
MAN ENERGY SOLUTIONS SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The piping connection of the pressure limiting valve 13 and the flushing valve 14 to the pressure accumulator unit 9 via the high pressure lines 15 , 16 is disadvantageous because additional sealing points are created due to this
In addition, the piping connection of the above-mentioned components of the fuel supply system results in a structurally complex fuel supply system requiring a lot of installation space
Access to individual components of the fuel supply system is more difficult due to pipe connections

Method used

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Examples

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Embodiment Construction

[0042] The invention relates to a fuel supply system for an internal combustion engine, especially a common rail fuel supply system, especially designed as a large diesel engine or a marine diesel engine. The basic structure of this fuel supply system has been referred to figure 1 to describe.

[0043] The invention concerns the details of the fuel supply system by means of which, in the area of ​​the pressure accumulator 9 interacting with the pressure limiting valve 13 and the flushing valve 14 , the plumbing work can be reduced. For details on this, refer to the following figure 2 to describe.

[0044] therefore, figure 2 Assignment of a valve block 19 to the pressure accumulator unit 9 interacting with the pressure limiting valve 13 and the flushing valve 14 is shown, wherein the pressure accumulator unit 9 acts directly on the valve block 19 , wherein the valve block 19 also accommodates or carries the pressure limiting valve 13 and flush valve 14.

[0045] Further...

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Abstract

The invention relates to a fuel supply system and particularly provides a common-rail fuel supply system applied to the internal combustion engine of a marine diesel engine, which comprises a low-pressure area. The low-pressure area is provided with a pumping device for pumping the fuel from the low-pressure area to a high-pressure area. Inside the high-pressure area between the pumping device and an ejector applied to a cylinder, an accumulation system is permanently arranged. The accumulation system comprises an accumulation unit coupled through a high-pressure pipeline. The accumulation system is connected with the pumping device through at least one high-pressure pipeline permanently arranged in a high-pressure condition. The accumulation system is connected with the ejector through an ejection loop by means of a high-pressure pipeline occasionally arranged in a high-pressure condition. A pressure limiting valve and a purge valve are interacted with one accumulation unit of the accumulation system. Meanwhile, the accumulation unit, in interaction with the pressure limiting valve and the purge valve, is provided with a valve block. The valve block directly acts on the accumulation unit and is used for accommodating the pressure limiting valve and the purge valve.

Description

technical field [0001] The invention relates to a fuel supply system for an internal combustion engine according to the preamble of claim 1 . The invention also relates to the assembly of a pressure accumulator unit, a pressure limiting valve and a flushing valve of such a fuel supply system. Background technique [0002] figure 1 The basic configuration of a common rail fuel supply system for an internal combustion engine known in the prior art is shown. Said construction is known from DE10157135B4. therefore, figure 1 The common rail fuel supply system comprises at least one injector 1 each for each cylinder of the internal combustion engine. Fuel can be injected into the individual cylinders of the internal combustion engine via the injector 1 . The common rail fuel supply system also includes a pumping device 3 comprising at least one low-pressure pump 5, at least one high-pressure pump 2 and a high-pressure pump accumulator unit 8 to deliver fuel from the low-press...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02M63/00
CPCF02M37/007F02M2200/247F02M55/025F02M63/0007F02M63/005F02M55/02F02M37/00F02M2200/248F02M63/0052F02M63/00F02M63/0012F16K17/04F02M21/10F02M37/0023F02M63/0049F02M63/027F02M63/029Y02T10/30F02M63/0275
Inventor W·瓦格纳R·施特罗贝尔
Owner MAN ENERGY SOLUTIONS SA
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