Mixed fuel oil injector used for diesel oil and dimethyl ether

A technology of fuel injector and dimethyl ether, which is applied to the field of fuel injector fueled by diesel fuel and dimethyl ether for compression ignition engine, and can solve the problems of complex structure and the like

Inactive Publication Date: 2009-06-10
CHINA JILIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This way the structure is complex
All these ways of burning diesel and dimethyl ether mixed fuel are given in the form of engine injection (fuel) system. At present, there is no mixed fuel injector of diesel and dimethyl ether

Method used

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  • Mixed fuel oil injector used for diesel oil and dimethyl ether

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Embodiment Construction

[0008] The specific implementation of the present invention will be further described below in conjunction with the accompanying drawings.

[0009] Such as figure 1 As shown, the present invention mainly includes: injector needle valve body 1, injector needle valve 2, injector tight cap 3, injector tappet 4, injector body 5, injector pressure regulating spring lower Seat 6, fuel injector pressure regulating spring 7, fuel injector pressure regulating nut 8, fuel injector pressure regulating spring upper seat 9, fuel injector pressure regulating screw 10, fuel injector protective cap 11, fuel injector oil return hole 12 , Washer 13, Dimethyl ether check valve cavity 14, Dimethyl ether check valve spring 15, Dimethyl ether check valve ball 16, Dimethyl ether oil inlet 17, Fuel mixer body 18, Diesel oil inlet 19 , Diesel one-way valve ball 20, diesel one-way valve cavity 21, diesel one-way valve spring 22, boss 23, fuel injector mixed fuel inlet 24, fuel injector oil tank 25, injecti...

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Abstract

A mixed fuel injector used for diesel oil and DME mainly consists of a fuel injector needle valve body, a fuel injector needle valve, a fuel injector body, a DME one-way valve, a fuel-mixer body, a diesel oil one-way valve, etc. The DME one-way valve is communicated with a diesel oil one-way valve cavity, and the diesel oil one-way valve and the DME one-way valve are arranged inside the fuel mixer body to compose a fuel mixer. The diesel oil one-way valve is communicated with the oil groove of a fuel injector through the fuel injector body and a mixed fuel inlet hole. The present invention provides a mixed fuel injector used for diesel oil and DME, wherein the original diesel engine oil supply system can be used not only as the diesel oil supply system of the mixed fuel, but also as the drive system of the mixed fuel. The mixed fuel is formed inside the fuel injector. The DME does not need to go directly through the oil pump, and the diesel oil in the mixed fuel plays a lubricating role on the moving parts inside the fuel injector, thus resolving the engine abrasion problem in the course of using the DME.

Description

Technical field [0001] The invention relates to a fuel injector for compression ignition engines that use dimethyl ether and diesel, in particular to a hybrid injector for compression ignition engines that uses diesel and dimethyl ether, and belongs to the category of power machinery such as automobiles and internal combustion engines. Background technique [0002] Due to the high thermal efficiency of compression ignition engines that use diesel as fuel, they are becoming more and more common. But it emits high levels of harmful soot and nitrogen oxides. Although people have taken many technical measures to reduce these two emissions, it is difficult to reduce them at the same time. As an emerging clean oxygen-containing fuel, dimethyl ether can greatly reduce soot emissions by burning on compression ignition engines, effectively reducing nitrogen oxide emissions and reducing noise. In recent years, people have conducted a lot of research. At present, diesel is still the fuel fo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02M43/04
Inventor 李孝禄徐立军陈红岩孙在李运堂方晓敏
Owner CHINA JILIANG UNIV
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