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Injection system for two kinds of fuel of double fuel pump of diesel engine

A fuel pump and diesel engine technology, which is applied to the dual fuel pump injection system and the dual fuel pump injection system for diesel engines to inject two kinds of fuels, can solve the problem that the volume percentage of mixed fuel is difficult to control and the like

Inactive Publication Date: 2007-04-25
SHANGHAI JIAOTONG UNIV
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  • Abstract
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AI Technical Summary

Problems solved by technology

The volume percentage of ethanol in this kind of mixed injection system is affected by the speed and load, and the volume percentage of mixed fuel is not easy to control; the two fuels can only be injected at the same injection advance angle, and flexible segmented injection cannot be performed on diesel engines

Method used

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  • Injection system for two kinds of fuel of double fuel pump of diesel engine

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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 oil tank 1, fuel injector needle valve 2, fuel injector 3, fuel injector needle valve spring 4, fuel injector oil inlet hole 5, slide valve 6, Spool valve right oil inlet pipe 10, slide valve left oil inlet pipe 11, diesel fuel pump governor 12, diesel fuel pump 13, diesel filter 14, diesel fuel tank 15, alternative fuel fuel pump governor 16, alternative fuel fuel pump 17. Alternative fuel filter 18, alternative fuel tank 19, fuel injector return pipe 20, outlet of diesel fuel tank 15 is connected to the inlet of diesel fuel pump 13 through diesel filter 14, and diesel fuel pump 13 is equipped with diesel fuel pump for speed regulation 12, the outlet of the diesel fuel pump 13 is communicated with the left end of the slide valve 6 through the left oil inlet...

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Abstract

The double-fuel oil pump system for jetting two kinds of fuel oil in diesel engine includes mainly oil sprayer with oil inlet hole, slide valve with right spring and left spring, slide block, right and left slide valve oil pipes, diesel oil pump, diesel oil filter, diesel oil tank, fuel substitute pump, fuel substitute filter, fuel substitute tank and oil sprayer return pipe. The present invention can regulate the sectional spraying time of two kinds of fuel via regulating the oil supplying ahead angle of the two fuel oil pumps and control the sprayed amount of each kind of the fuel oil via regulating the oil amount regulating mechanism on two fuel oil pumps, and has obvious economic utility.

Description

technical field [0001] The invention relates to a double fuel pump injection system, in particular to a diesel engine double fuel pump injection two fuel injection system, which belongs to the technical field of internal combustion engines. Background technique [0002] The traditional diesel engine generally uses diesel as fuel, and it has been highly valued by people because of its high thermal efficiency. In recent years, the world's energy shortage, price fluctuations and increasingly stringent emission regulations in various countries have brought new challenges to the research on alternative fuels for diesel engines. In recent years, the new alternative fuels for diesel engines mainly include ethanol (alcohol), dimethyl ether, etc. These alternative fuels are all oxygenated fuels, and their harmful emissions (nitrogen oxides and soot) are more harmful than those produced by diesel combustion. much lower. However, as a mature fuel, diesel has been used for nearly a hu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02M43/00F02D19/08F02B75/00
Inventor 乔信起李孝禄黄震方俊华李德钢吕兴才钟贇
Owner SHANGHAI JIAOTONG UNIV
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