Coaxial dual-electromagnetic fuel gas injection valve with flowing sectional area adjustable

A gas injection valve, coaxial technology, applied in the field of gas injection valve of natural gas engine gas system, can solve the problems of error accumulation, difficult debugging of injection valve, etc., to reduce flow loss, improve reliability, and increase intake air volume. Effect

Active Publication Date: 2017-08-25
HARBIN ENG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Injection valves need to work for thousands of hours under harsh working conditions such as high temperature and high pressure, and maintenance work such as disassembly will lead to gradual accumulation of errors, which will eventually make it difficult to debug the injection valve

Method used

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  • Coaxial dual-electromagnetic fuel gas injection valve with flowing sectional area adjustable
  • Coaxial dual-electromagnetic fuel gas injection valve with flowing sectional area adjustable
  • Coaxial dual-electromagnetic fuel gas injection valve with flowing sectional area adjustable

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Embodiment Construction

[0015] The present invention is described in more detail below in conjunction with accompanying drawing example:

[0016] to combine Figure 1-4 , figure 1 It is a schematic diagram of the overall structure of the coaxial double electromagnetic gas injection valve with adjustable flow cross-sectional area of ​​the present invention, including valve body 1, main electromagnet, secondary electromagnet, valve stem 7, small valve core 12, T-shaped armature 6, valve Core assembly 11, valve seat 14 four parts. The secondary iron core 2 is connected with the valve body 1 through the upper thread. The main electromagnet mainly consists of an iron core 8 and a coil 9. Both sides of the iron core 8 are provided with annular grooves for arranging the main return spring 10 , and the valve core assembly 11 is arranged under the iron core 8 . The secondary electromagnet is mainly composed of a secondary iron core 2 and a secondary coil 3 . It is characterized in that: the two sides of ...

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Abstract

The invention aims at providing a coaxial dual-electromagnetic fuel gas injection valve with the flowing sectional area adjustable. The adjustable gas injection flow is achieved through a dual-valve-element dual-electromagnet control structure. The air inflowing and flow guiding process is achieved through a bypass structure and a flow guiding cavity structure; valve element control and gas way control are achieved through actuator control, and a gas injection function is achieved; through cooperation of an external guiding structure, an internal flow guiding cavity and a pressure balancing groove, the perpendicularity of a valve element is guaranteed, stable and reliable work of gas flow is achieved, and the high responding speed is achieved; through a mixed gas inflowing mode of combining direct gas inflowing of an axial main gas groove and gas inflowing of circumferential gas supplementing holes, high flow is achieved, the gas supplying efficiency of an engine is effectively improved, and meanwhile gas flow interference can be avoided, so that gas way stability is achieved; face sealing and high reliability of the fuel gas injection valve are achieved through multiple annular strip structures between the valve element and a valve base.

Description

technical field [0001] The invention relates to a gas injection valve, in particular to a gas injection valve of a natural gas engine gas system. Background technique [0002] The problem of environmental pollution is becoming more and more serious, the requirements for emission indicators are becoming more and more stringent, and the demand for high-power gas generators in the market continues to grow. With the use of large-scale gas engines, the manufacture, maintenance and repair of key components have become important factors restricting the development of gas engines, and gas injection valves are such key components. The gas injection valve is one of the core components of gas fuel electronically controlled multi-point injection gas engine including dual fuel engine. Power and emissions have a very important impact. Injection valves need to work for thousands of hours under harsh working conditions such as high temperature and high pressure, and maintenance work such ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K31/06F02M21/02
CPCF02M21/0248F02M21/0254F02M21/0257F02M21/0269F16K31/0644F16K31/0675Y02T10/30
Inventor 宋恩哲王毓源范立云董全杨立平
Owner HARBIN ENG UNIV
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