Light fast-response electromagnetic valve

A fast-response, solenoid valve technology, applied in the field of solenoid valves, can solve the problems of increased structural weight and inability to meet the needs of lightweight and miniaturized control valves

Active Publication Date: 2013-10-30
NO 11 INST OF NO 6 ACADEMY OF CHINA AEROSPACE SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is: increasing the inlet pressure or increasing the outlet diameter of the existing solenoid valve will greatly increase its structural wei

Method used

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Examples

Experimental program
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Effect test

Example Embodiment

[0033] Example 1:

[0034] The implementation example applied to a hydraulic control system is as follows:

[0035] A hydraulic control system uses a fast-response solenoid valve with a built-in chip drive circuit. According to the design requirements, the working medium of the system is a strong oxidizing medium green nitrous oxide, the medium pressure is 2MPa, the system control voltage is 28V, and the flow rate is 30g / s. The test shows that, in the case of no external control circuit, the opening time of the solenoid valve is 5ms, the closing time is 2ms, the flow resistance is 0.2MPa when the flow rate is 30g / s, and the weight of the solenoid valve is 0.15kg.

[0036] The valve is remotely controlled by electrical signals, and has excellent performances such as small size, light weight, good sealing, fast switching speed and low power consumption. By selecting corrosion-resistant soft magnetic materials, metal base materials and non-metallic sealing materials, the corros...

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PUM

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Abstract

The invention relates to a light fast-response electromagnetic valve which comprises a coil assembly, a valve seat base, a valve spool, a spring and a control circuit. An inlet channel of the valve seat base is communicated with an annular liquid collecting tank, a valve seat is arranged at a junction of the upper end surface of an outlet channel and the annular liquid collecting tank, a stepped hole is formed in the center of the valve spool, a first sealing assembly is arranged on the lower end surface of the valve spool, the coil assembly comprises stop iron, a non-magnetic ring, a lower end, a coil, a shell and a balance bar, the other end of the balance bar extends into the stepped hole of the valve spool and is peripherally in clearance fit with the stepped hole, a second sealing assembly is arranged at a fit position of the balance bar and the stepped hole, the sealing area of the second sealing assembly is equal to the sealing area of the first sealing assembly, a spring cavity is formed by the lower end surface of the balance bar and the stepped hole of the valve spool, and the spring is positioned in the spring cavity. The light fast-response electromagnetic valve has the advantages that the problem that an existing electromagnetic valve cannot meet the requirement of a specific system on a light and small control valve is solved, and the electromagnetic valve is light and small, and is fast in response and low in power consumption.

Description

technical field [0001] The invention relates to an electromagnetic valve, which can be used as a control valve of various hydraulic and pneumatic systems. Background technique [0002] Solenoid valves are used in various hydraulic and pneumatic systems. As control components, their functions include the start, shutdown and flow adjustment of the control system. In the field of aerospace and aviation, such as propulsion systems of vehicles, aircraft and spacecraft, due to the limitation of maneuverability and payload, high requirements are put forward for the response speed, structural weight and energy consumption of solenoid valves. Miniaturization, fast response, and low power consumption have become the development trend of aerospace and aviation solenoid valves. Due to its simple structure and high reliability, the DC solenoid valve is widely used in the field of aerospace and aviation propulsion system control. The electromagnetic force necessary for the start-up of t...

Claims

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Application Information

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IPC IPC(8): F15B13/02
Inventor 宋会玲罗大亮孙亮曾维亮沙超魏学峰袁洪滨王春民
Owner NO 11 INST OF NO 6 ACADEMY OF CHINA AEROSPACE SCI & TECH
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