Electromagnetic drive device and pilot-operated type electromagnetic pneumatic valve

An electromagnetic pneumatic valve, electromagnetic drive technology, applied in the direction of valve device, valve operation/release device, valve details, etc., to improve the response and ensure the effect of reliable implementation

Pending Publication Date: 2017-07-28
XIAN AEROSPACE PROPULSION INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the traditional solenoid valve cannot meet the requirements of fast response under large flow conditions, so it is necessary to develop a pilot-operated electromagnetic pneumatic valve that can meet the requirements of fast response, high pressure resistance and large flow.

Method used

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  • Electromagnetic drive device and pilot-operated type electromagnetic pneumatic valve
  • Electromagnetic drive device and pilot-operated type electromagnetic pneumatic valve
  • Electromagnetic drive device and pilot-operated type electromagnetic pneumatic valve

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Embodiment Construction

[0027] The present invention is described in detail below in conjunction with the embodiment that accompanying drawing provides:

[0028] see figure 1 , an electromagnetic drive device, including a housing 201, an electromagnetic coil 202, a permanent magnet 203, an armature 204, a magnetic isolation pad 205 and a push rod 206; the electromagnetic coil 202, the permanent magnet 203 and the armature 204 are arranged in the housing 201, and the permanent The magnet 203 is ring-shaped, arranged in the middle of the housing 201, concentric with the housing 201; the electromagnetic coil 202 is concentric with the housing 201, the electromagnetic coil 202 is divided into two sections, and the two sections of electromagnetic coil 202 are respectively arranged on the top of the permanent magnet 203 With the lower part; after the electromagnetic coil 202 is energized, the direction of the magnetic field generated by the electromagnetic coil 202 is opposite to the direction of the upper...

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PUM

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Abstract

The invention belongs to the field of control valves and particularly relates to an electromagnetic drive device and a pilot-operated type electromagnetic pneumatic valve. The electromagnetic drive device comprises a shell, an electromagnetic coil, a magnetism isolation pad, a permanent magnet and an armature. The pilot-operated type electromagnetic pneumatic valve comprises the above electromagnetic drive device and furthermore comprises a valve body, a pilot valve unit and a main valve unit. The electromagnetic drive device is subjected to optimized design, the armature is subjected to differential magnetic energy distribution, adverse influences of self-locking force of the permanent magnet are overcome, and it is effectively guaranteed that the required response performance can be achieved reliably. The electromagnetic drive device and the pilot-operated type electromagnetic pneumatic valve are mainly used for occasions with a large flow and high pressure, such as, liquid rocket engines, satellite in-orbit execution systems, ground test systems and automated fluid pipe systems and have the advantage of being high in response speed.

Description

technical field [0001] The invention belongs to the field of control valves, in particular to an electromagnetic drive device and a pilot electromagnetic pneumatic valve. Background technique [0002] The pilot-operated electromagnetic pneumatic valve is mainly used to control the start and stop of the engine, and the engine of an ordinary car does not have high requirements for its response speed. [0003] The pilot electromagnetic pneumatic valve is generally composed of an electromagnetic drive device, a pilot valve and a main valve. The design of the electromagnetic drive device directly affects the opening or closing speed of the pilot electromagnetic pneumatic valve. [0004] The propellant flow rate and pressure of the orbital control engine in the aerospace application field are large, and the pilot electromagnetic pneumatic valve that controls its opening and closing is required to achieve fast response performance under large flow conditions. However, traditional ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K31/06
CPCF16K31/0675
Inventor 魏学峰孙亮罗大亮宋会玲陈展曾维亮张王攀
Owner XIAN AEROSPACE PROPULSION INST
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