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Bistable passive self-holding pilot-operated solenoid valve

A pilot-operated solenoid valve, bistable technology, applied in the direction of lifting valve, balance valve, valve device, etc., can solve problems such as potential safety hazards

Pending Publication Date: 2022-08-02
陕西星际荣耀空间科技有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Therefore, the technical problem to be solved by the present invention is to overcome the defect that the solenoid valve in the prior art has potential safety hazards when used in complex working conditions such as aerospace, thereby providing a bistable self-maintaining pilot solenoid valve

Method used

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  • Bistable passive self-holding pilot-operated solenoid valve
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  • Bistable passive self-holding pilot-operated solenoid valve

Examples

Experimental program
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Effect test

Embodiment

[0039] like Figure 1 to Figure 5 Shown is a bistable passive self-maintaining pilot solenoid valve provided in this embodiment, including: a valve body, a pilot mechanism and an electromagnetic mechanism.

[0040] The inside of the valve body is provided with a first medium cavity 1 and a second medium cavity 2, a medium port is communicated between the first medium cavity 1 and the second medium cavity 2, and a first valve core is slidably installed at the medium port. An inlet chamber 3 is also provided, a scoring diaphragm 4 is installed between the inlet chamber 3 and the first medium chamber 1 , and the inlet chamber 3 is communicated with the second medium chamber 2 .

[0041] The first valve body has a closed state in which it is in complete contact with the medium port, and an open state in which it is separated from the medium port. The first valve core includes a valve core body 5 , a conical spring as an elastic telescopic member 6 and a support rod 7 as a support...

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Abstract

The invention relates to the technical field of spaceflight hydraulic system control, in particular to a bistable passive self-holding pilot-operated type electromagnetic valve which comprises a valve body, a first medium cavity and a second medium cavity are formed in the valve body, a medium opening is communicated between the first medium cavity and the second medium cavity, and a first valve element is slidably installed at the medium opening; the valve body is further provided with an inlet cavity, a nick diaphragm is installed between the inlet cavity and the first medium cavity, and the inlet cavity is communicated with the second medium cavity. The pilot mechanism is provided with a pressure relief flow channel, one end of the pressure relief flow channel is communicated with the second medium cavity, the other end of the pressure relief flow channel is communicated with an overflow cavity, the overflow cavity is communicated with the second medium cavity, and a second valve element is installed between the overflow cavity and the pressure relief flow channel. When the valve element of the electromagnetic valve cannot be opened, the pressure on one side of the inlet cavity is larger than that on one side of the first medium cavity, the nick diaphragm is broken through, the inlet cavity is communicated with the first medium cavity, and the electromagnetic valve is opened when the valve element cannot be opened.

Description

technical field [0001] The invention relates to the technical field of aerospace hydraulic system control, in particular to a bistable passive self-maintaining pilot solenoid valve. Background technique [0002] Solenoid valve is an industrial equipment controlled by electromagnetic, and it is an automatic basic component used to control fluid. It belongs to actuator and is not limited to hydraulic and pneumatic. Used in industrial control systems to adjust the direction, flow, speed and other parameters of the medium. Solenoid valves are widely used in aerospace hydraulic control systems. In aerospace hydraulic control systems, valves are often in complex working conditions, and the valve core is easily affected by multiple factors such as vibration, excess and drive failure, resulting in the valve core not being able to open normally. The medium cannot pass normally, resulting in the failure of the hydraulic system to work normally, causing a major safety hazard to the eq...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K1/00F16K17/16F16K31/40F16K31/06F16K31/08B01D29/11B01D35/04
CPCF16K1/00F16K17/16F16K31/40F16K31/0679F16K31/0655F16K31/082B01D29/11B01D35/04Y02E30/30
Inventor 赵熠堃
Owner 陕西星际荣耀空间科技有限责任公司
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