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High-speed repetitive pulse type radial flow trace gas supply valve

A repetitive pulse, trace gas technology, applied in valve details, valve devices, engine components, etc., can solve the problems of continuous and stable pulse operation, large structure size and mass, low dynamic response, etc., to meet performance stability and long-term performance. Life requirements, small deformation, the effect of reducing the size of the structure

Active Publication Date: 2017-11-28
NAT UNIV OF DEFENSE TECH
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Problems solved by technology

[0017] The present invention provides a high-speed repetitive pulse radial flow trace gas supply valve to solve the deficiency of the propellant pulse supply valve in the existing inductive pulse plasma thruster, and the existing high-speed pulse gas valve has complex structure, Technical problems of low dynamic response, large structural size and quality, and inability to work continuously and stably with pulses

Method used

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Embodiment Construction

[0049] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0050] refer to figure 1 , this embodiment provides a high-speed repetitive pulse type radial flow trace gas supply valve, which includes a valve body, a drive part and an execution member arranged on the valve body for controlling the transition of the working state of the radial valve port. The drive part of this embodiment It includes an induction drive coil 14 located at the valve port and an external pulse drive circuit. The actuator is a flat truncated cone shell-shaped reed 15 and is located on the induction drive coil 14. Between the reed 15 and the induction drive coil 14 There is a sealing piece 6 that interacts with the outer edge of the reed 15 to tighten the valve port and absorb ...

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Abstract

The invention discloses a high-speed repetitive pulse type radial flow trace gas supply valve which comprises a valve body, a driving part and an executing component. The driving part and the executing component are arranged on the valve body and used for controlling switching of the work states of a radial valve opening. The driving part comprises an induction driving coil and a pulse driving circuit, the induction driving coil is located on the valve opening and arranged opposite to a reed. The executing component is the reed in a flat truncated conical shell shape. The inner edge of the reed is fixed, and the outside of the reed can be deformed in the axial direction. Due to the fact that the mass of the reed is small, the valve can be fast opened under the action of the repelling force of induction vortex. Compared with a common flat plate type structure, when identical deformation is generated on the outer edge, elastic potential energy stored by the truncated-conical-shell-shaped structure of the reed is larger, and therefore quick closing can be achieved. The induction driving coil is designed to be of a flat truncated conical spiral structure and arranged opposite to the reed, and therefore the electromagnetic force density in the reed can be effectively improved. By means of the combination manner of the driving part and the executing component, the overall structural size and mass of the valve body are greatly reduced, and miniaturization and weight reduction of the structure are facilitated.

Description

technical field [0001] The invention relates to the field of electric thrusters for space exploration, in particular to a high-speed repetitive pulse type radial flow trace gas supply valve. Background technique [0002] With the expansion of the scope of human exploration and use of space, interplanetary deep space exploration missions represented by manned / unmanned Mars delivery missions have proposed longer life, higher power, greater thrust, and specific impulse for electric thrusters. And new requirements such as variable efficiency. The pulsed electromagnetic acceleration thruster represented by the pulsed induction thruster (Pulsed Inductive Thruster, PIT) has shown unique advantages in the analysis of future-oriented interplanetary deep space exploration missions. The basic principle of PIT is to store electrical energy in capacitors , the capacitor discharges through the coil to generate a pulse current with a large peak value. The time-varying electromagnetic fiel...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K31/06F16K31/12
CPCF16K31/0675F16K31/12
Inventor 郭大伟程谋森杨雄李小康王墨戈
Owner NAT UNIV OF DEFENSE TECH
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