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Fuel supply equipment comprising a accumulation pipe recur to accumulation cover blocking

A technology of fuel supply and pressure accumulator, which is applied to fuel injection devices with fuel storage, fuel injection devices, charging systems, etc., which can solve the problems of assembling and disassembling functional units, and achieve improved accessibility and optimization Simple effect of component manufacturing, assembly/disassembly

Active Publication Date: 2006-08-16
MAN ENERGY SOLUTIONS SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Overall, assembly and disassembly of the functional units of the conventional pressure accumulator cover in the high-pressure connection is relatively complex

Method used

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  • Fuel supply equipment comprising a accumulation pipe recur to accumulation cover blocking
  • Fuel supply equipment comprising a accumulation pipe recur to accumulation cover blocking
  • Fuel supply equipment comprising a accumulation pipe recur to accumulation cover blocking

Examples

Experimental program
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Effect test

Embodiment Construction

[0026] Pressure accumulator units are known to consist of pipe-like components with or without inserts, which by means of press Figures 1 to 4 The pressure accumulator covers are each sealed at the end faces and are arranged approximately at the level of the cylinder head along the internal combustion engine (not shown).

[0027] Each pressure accumulator unit is connected by means of at least one pressure line 2 to at least one injector 1 , which is usually electrically controlled.

[0028] Preferably, one pressure accumulator unit is provided for each of the two cylinders to be actuated. In the case of an odd number of cylinders, a freely positionable pressure accumulator unit operates only one cylinder. Depending on the engine type and application, the respective interconnected pressure accumulator units are charged by two to six high-pressure pumps.

[0029] As stated at the outset, the fuel enters the pressure accumulator cover 3 from the respective pressure accumulato...

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PUM

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Abstract

The invention relates to a fuel supply system in the form of a common rail injection system, which has at least one pressure accumulator chamber in a pressure accumulator unit, which can be closed at least on one end face by means of a pressure accumulator cover, In this case, all functional units are integrated in the accumulator cover with regard to fuel supply and guidance, in order to make the functional units easily accessible and thus to preserve the functional units acting on the accumulator cover, in particular the 3 / 2-way valve and the pressure The advantage of the attenuation of the pressure amplitude on the pipe is proposed according to the invention: the pressure accumulator cover is composed of two modules in the form of a sealing element and a control unit in two parts, so that the sealing element is tightly connected to the pressure accumulator unit and controlled The unit can be positioned arbitrarily in the pressure line between the sealing element and the injector that needs to be supplied with oil.

Description

technical field [0001] The invention relates to a fuel supply device in the form of a common rail injection system for supplying fuel injectors of cylinders of an internal combustion engine via a pressure line, said fuel supply device having at least one The accumulator chamber, the accumulator unit, can be closed at least on one end side by means of an accumulator cover, wherein all functional units are integrated in the accumulator cover with regard to fuel supply and guidance. Background technique [0002] Such a fuel supply device is known, for example, from DE 101 57 135 A1, which has the features of the preamble of claim 1 . [0003] It has already been mentioned here that in large diesel internal combustion engines the use of a common rail injection system is problematic due to the length of the pressure accumulator unit necessary for a constant pressure accumulation for all cylinders along the engine axis. A pressure accumulator unit is thus realized from at least t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02M45/04F02M55/02F02M63/00F02M63/02F02M
CPCF02M55/025F02M63/0031F02M63/0043F02M63/0045F02M63/0225F02M2200/40F02M55/02F02M63/00
Inventor C·格拉斯珀伊恩特纳L·迈尔C·福格尔W·瓦尔克纳H·亚尔钦
Owner MAN ENERGY SOLUTIONS SA
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