Mixed fuel oil injector used for diesel oil and dimethyl ether

A technology of fuel injector and dimethyl ether, which is applied in the field of mixed fuel injectors for compression ignition engines fueled with diesel and dimethyl ether, and can solve problems such as complex structures

Inactive Publication Date: 2008-02-06
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] As shown in Figure 1, the present invention mainly includes: fuel injector needle valve body 1, fuel injector needle valve 2, fuel injector tight cap 3, fuel injector tappet 4, fuel injector body 5, fuel injector adjuster Pressure 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 return Oil hole 12, gasket 13, DME check valve chamber 14, DME check valve spring 15, DME check valve ball 16, DME oil inlet hole 17, fuel mixer body 18, diesel inlet Oil hole 19, diesel check valve ball 20, diesel check valve cavity 21, diesel check valve spring 22, boss 23, injector mixed fuel inlet hole 24, injector oil tank 25, spray hole 26, The diesel...

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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 a compression ignition engine fueled with dimethyl ether and diesel oil, in particular to a mixed fuel injector for a compression ignition engine fueled with diesel oil and dimethyl ether, which 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 using diesel as fuel, their use is 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 oxygenated fuel, dimethyl ether can greatly reduce the emission of soot, effectively reduce the emission of nitrogen oxides and reduce noise when burned in a compression ignition engine. In recent years, a lot of research has been done. At present, d...

Claims

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Application Information

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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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