Diesel engine and high pressure common rail fuel injection system thereof

A technology of fuel injection system and high-pressure common rail, which is applied to engine components, machines/engines, fuel injection devices, etc., and can solve problems such as pressure difference and rail pressure fluctuations

Inactive Publication Date: 2016-09-07
WEICHAI POWER CO LTD
View PDF8 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a high-pressure common rail fuel injection system and a diesel engine including the high-pressure common rail fuel injection system, so as to solve the problems of pressure difference and rail pressure fluctuation between two common rail pipes in the prior art

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Diesel engine and high pressure common rail fuel injection system thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0021] Such as figure 1 As shown, the embodiment of the present invention provides a high pressure common rail fuel injection system. The high-pressure common rail fuel injection system of this embodiment includes a high-pressure oil pump 6, a fuel injector 8, and a plurality of common rail pipes 7. The common rail pipe 7 communicates with t...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to the technical field of diesel engines, in particular to a high pressure common rail fuel injection system. The high pressure common rail fuel injection system comprises a high pressure fuel pump, a fuel atomizer and a plurality of common rail pipes; the common rail pipes communicate with one another through the high pressure fuel pump and the fuel atomizer; the high pressure common rail fuel injection system further comprises a high pressure fuel pipe; and the common rail pipes communicate with the high pressure fuel pipe. The invention further relates to a diesel engine comprising the high pressure common rail fuel injection system. The common rail pipes communicate with one another through the high pressure fuel pipe, so that on the one hand, the pressure difference between the common rail pipes caused by uneven fuel supply of two cylinders of a fuel injection pump can be eliminated; on the other hand, rail pressure oscillation caused by fuel pumping of the fuel injection pump and fuel injection of the fuel atomizer can be eliminated, and accordingly the purposes of enhancing the stability of a hydraulic system, improving smoothness of operation of the whole engine, lowering the noise and improving emission consistency are achieved.

Description

technical field [0001] The invention relates to the technical field of diesel engines, in particular to a high-pressure common rail fuel injection system and a diesel engine including the high-pressure common rail fuel injection system. Background technique [0002] In the existing high-pressure common rail fuel injection system of diesel engines, the common rail pipe is a container for storing high-pressure diesel oil. [0003] In the V-type electronically controlled high-pressure common rail fuel injection system, the high-pressure diesel in the high-pressure oil pump is distributed to the injectors through two common rail pipes. The two common rail pipes are independent of each other, and the unevenness of fuel supply to the two cylinders of the fuel injection pump is likely to cause a pressure difference between the two common rail pipes, and the oil pumped by the fuel injection pump and the fuel injected by the injector will cause rail pressure fluctuations, thus affect...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): F02M55/02F02M37/04F02M37/22
CPCF02M37/04F02M37/22F02M55/02F02M55/025
Inventor 卢元辉王玉杰王光明
Owner WEICHAI POWER CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap