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Electronic injection device with dimethyl ether and compressed natural gas and control method

A technology of compressed natural gas and electronic injection, which is applied in fuel injection control, electrical control, oil supply devices, etc., can solve problems such as fuel waste, slow gasoline atomization, and insufficient fuel combustion, so as to improve efficiency, optimize control and combustion , the effect of improving performance

Active Publication Date: 2014-06-25
BEIJING UNIV OF TECH
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Problems solved by technology

When the traditional gasoline engine starts, it will cause insufficient fuel combustion and discharge a large amount of harmful substances; gasoline atomization is relatively slow, which will also cause a lot of waste of fuel

Method used

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  • Electronic injection device with dimethyl ether and compressed natural gas and control method

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Embodiment Construction

[0017] Below in conjunction with accompanying drawing and specific embodiment the present invention will be further described:

[0018] The device includes DME fuel tank 4, DME pressure regulator 5, DME nozzle 6, DME fuel injection pulse width signal a1 and injection timing signal a2 issued by dual gaseous fuel electronic injection device 7; CNG fuel tank 1, CNG pressure regulator 2, CNG nozzle 3, CNG fuel injection pulse width signal b1 and injection timing signal b2 sent by dual gaseous fuel electronic injection device 7; dual gaseous fuel electronic injection device 7 receives speed sensor signal c1, coolant temperature sensor signal c2, oxygen sensor signal c3 , engine knock sensor signal c4, throttle position sensor signal c5, prompt alarm signal c6; DME fuel tank 4, DME pressure regulator 5, DME nozzle 6 are connected in sequence; CNG fuel tank 1, CNG pressure regulator 2, CNG nozzle 3 in sequence connected, the dual gaseous fuel electronic injection device 7 can control...

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Abstract

The invention relates to an electronic injection device with dimethyl ether and compressed natural gas and a control method, and belongs to the technical field of fuel injection control. The electronic injection device with the two kinds of gaseous state fuel implements different strategies by adjusting fuel kinds and fuel injection proportions under different working conditions, and under exceptional conditions, a prompt alarm lamp can be turned on, and a nozzle can be closed. The electronic injection device is low in cost, can be conveniently installed on engines with different models, safe and smooth operation of the engines is guaranteed, the whole burning performance of the engines is improved, the automatic operation is achieved, the double-gaseous-state-fuel system control method is worthy of popularization.

Description

technical field [0001] The invention provides a fuel electronic injection device and a control method, in particular to an electronic fuel injection device and a control method using dual gaseous fuels of dimethyl ether (DME) and compressed natural gas (CNG). Background technique [0002] With the development of the automobile industry, oil shortage and environmental pollution are two major problems that cannot be ignored. When the traditional gasoline engine starts, it will cause insufficient fuel combustion and discharge a large amount of harmful substances; gasoline atomization is relatively slow, which will also cause a lot of waste of fuel. Therefore, alternative fuels have become a research hotspot. Among them, dimethyl ether (DME) and compressed natural gas (CNG) have been widely researched and applied. Compared with traditional gasoline engines, DME is a fuel with high cetane number, high oxygen content, and complete combustion; since it does not contain C-C molecu...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02D41/30F02M21/02
CPCY02T10/30
Inventor 纪常伟石磊汪硕峰张擘朱永明
Owner BEIJING UNIV OF TECH
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