Liquid measure ejector and spraying control method thereof

A liquid metering and injector technology, applied in fuel injection control, electrical control, engine control, etc., can solve the problems of increasing the mass of aircraft and reducing the thrust-to-weight ratio of the aircraft, and achieve precise control of injection volume, light weight, and cost reduction. Effect

Active Publication Date: 2012-12-19
北京领动国创科技有限公司
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AI Technical Summary

Problems solved by technology

If such a fuel supply system is applied to the fuel injection of a small aviation piston engine, it will greatly increase the mass of the aircraft and reduce the thrust-to-weight ratio of the aircraft

Method used

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  • Liquid measure ejector and spraying control method thereof
  • Liquid measure ejector and spraying control method thereof

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Embodiment Construction

[0041] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0042] The present invention provides a liquid metering injector, such as figure 1 As shown, it includes housing 1, limit disc 2, piston 3, solenoid 4, spring seat 5, bias spring 6, one-way loading valve 7, conical spring 8, pump oil diaphragm 9 and injection channel 10 .

[0043] There is a high-pressure oil chamber 101 on the top of the housing 1, and a piston chamber 102 on the bottom. There are also a limiting chamber 103, a solenoid placement chamber 104, and a low-pressure oil chamber 105 inside the housing 1; the limiting chamber 103 is located in the piston chamber. The lower part of 102 is in communication with the piston chamber 102, and the limiting disc 2 is arranged in the limiting chamber 103. The piston 3 is located in the piston chamber 102 and is connected with the limiting disc 2. The top of the piston 3 extends into the high-pressure oil ...

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Abstract

The invention discloses a liquid measure ejector and a spraying control method thereof and belongs to the fields of miniature aviation piston engine fuel spraying, wherein the ejector comprises a shell, a limit disc, a piston, a solenoid, a spring clamp seat, a bias spring, a unidirectional loading valve, a cone spring, an oil pumping diaphragm and a spray passageway; and the liquid ejector can deliver a specific amount of liquid through operating the solenoid, the liquid spraying quantity of each system operating cycle can be controlled through controlling the spraying times. The invention also discloses an ejector control method based on the quantitative liquid spraying function of the ejector, the spraying times required for the engine in each cycle can be confirmed by the method.

Description

technical field [0001] The invention relates to the field of fuel injection of small aviation piston engines, in particular to a liquid metering injector and an injection control method thereof. Background technique [0002] At present, when the fuel injection of small aviation piston engines is used to inject the required liquid to the required parts, in order to ensure the injection volume, spray atomization effect, and injection time, a relatively complicated and heavy supply system is used. [0003] Generally, the oil supply system can be divided into two oil circuits, low pressure and high pressure. The former is composed of fuel tank, low-pressure fuel pipe, fuel pump, fuel filter, etc.; the latter is composed of high-pressure fuel pump, high-pressure fuel pipe, fuel injector, etc. In recent years, in order to ensure accurate and controllable fuel injection and better spray effect, common rail fuel injection system has been used in the fuel supply system. In order to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02M51/06F02D41/30
Inventor 张奇陈琳琳杨凯杜发荣周煜韩树军
Owner 北京领动国创科技有限公司
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