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Modular common rail pipe structure

A common rail pipe and modular technology, applied in the direction of engine components, machines/engines, charging systems, etc., can solve the problems of unchangeable and poor applicability of common rail pipes, and achieve easy realization, stable high-pressure common rail pressure fluctuations, The effect of increasing volume

Inactive Publication Date: 2020-11-06
CHINA NORTH ENGINE INST TIANJIN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Usually, the common rail pipe is forged in one piece. The number of fuel ports and the volume of the common rail pipe are designed according to the requirements of the engine fuel supply system and cannot be changed.
Therefore, different models need to design different common rail pipes, and the applicability of common rail pipes is poor

Method used

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Embodiment Construction

[0019] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0020] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner" and "outer" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and Simplified descriptions, rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and thus should not be construed as limiting the invention. In addition, the terms "first", "second", etc. are used for descriptive purposes only, and should not be interpreted...

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Abstract

The invention provides a modular common rail pipe structure. The structure comprises a rail pressure sensor, a sealing pad, a common rail pipe body, a safety valve, a connecting piece and common railpipe modules, wherein one end of the common rail pipe body is connected with the rail pressure sensor through a rail pressure sensor mounting hole of the common rail pipe body, and the rail pressure sensor realizes high-pressure sealing by tightly pressing the sealing pad; the other end of the common rail pipe body is connected with the safety valve through a common rail pipe body connecting holeof the common rail pipe body, and the safety valve realizes high-pressure sealing by tightly pressing the sealing pad; or, the other end of the common rail pipe body is connected in series with at least one common rail pipe module through a common rail pipe body connecting hole of the common rail pipe body in combination with the connecting piece, the other end of the last common rail pipe moduleis connected with the safety valve, and the safety valve realizes high-pressure sealing by tightly pressing the sealing pad. The common rail pipe can meet the demands of engines with different numbersof cylinders; meanwhile, the volume of the common rail pipe is increased, and high-pressure common rail pressure fluctuation is stabilized; and the structure is simple and easy to realize.

Description

technical field [0001] The invention belongs to the field of high-pressure common rail in a fuel system, and in particular relates to a modular common rail pipe structure. Background technique [0002] The common rail pipe plays a role in storing fuel and stabilizing pressure fluctuations in the high-pressure common rail fuel injection system. At the same time, the common rail pipe is equipped with a pressure sensor and a safety valve, which are used to collect the pressure of the high pressure common rail system and protect the safety of the high pressure common rail system. Usually, the common rail pipe is forged in one piece, and the number of fuel ports and the volume of the common rail pipe are designed according to the requirements of the engine fuel supply system and cannot be changed. Therefore, different models need to design different common rail pipes, and the applicability of common rail pipes is poor. Contents of the invention [0003] In view of this, the p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02M55/02F02M55/00
CPCF02M55/005F02M55/025
Inventor 康彦红马梁李华乐杨显锋陈日军
Owner CHINA NORTH ENGINE INST TIANJIN
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