Pulsed plasma thruster with water working medium

A pulsed plasma and thruster technology, which is applied in the direction of utilizing plasma, thrust reverser, machine/engine, etc., can solve the problems of low specific impulse of working medium and inability to generate a large amount of plasma, so as to improve the utilization rate and save costs. and space effects

Inactive Publication Date: 2012-01-04
ZHONGBEI UNIV
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Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that the working medium specific impulse of the existing Teflon pulsed plasma thruster is low an

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  • Pulsed plasma thruster with water working medium
  • Pulsed plasma thruster with water working medium
  • Pulsed plasma thruster with water working medium

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Embodiment Construction

[0020] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0021] Such as figure 1 , 2 As shown, a hydraulic pulse plasma thruster according to the present invention includes two parts: a thruster body and a power processing unit. The propeller body is composed of a propeller structure and an energy storage capacitor. The propeller structure includes an anode 1, a cathode 2, a trigger 3, a working medium feeding mechanism and a nozzle 4. The anode 1 is a thoriated tungsten slender cylinder with a diameter of 2.4mm; the cathode 2 is a copper ring coaxial with the anode, with an inner diameter of 7mm, an outer diameter of 18mm, and a length of 26mm; an electrode cavity is formed between the anode 1 and the cathode 2, and the trigger 3 is connected to the cathode 2. The working fluid feeding mechanism includes an atomizer for atomizing the hydraulic fluid. The outside of the anode 1 and the cathode 2 are sealed with a casing ...

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Abstract

The invention provides a pulsed plasma thruster with water as a working medium. The thruster comprises two parts, namely a thruster body and a power supply processing unit, wherein the thruster body consists of a thruster structure and an energy storage capacitor; the thruster structure comprises a positive pole, a negative pole, a trigger, a wording medium feeding mechanism and a nozzle; the power supply processing unit consists of a main power supply and a triggering power supply; the main power supply is connected to the wiring terminals of the positive pole and the negative pole by wires,and is simultaneously connected with the energy storage capacitor; and the triggering power supply is connected with the trigger. A water working medium is added with sodium chloride or potassium chloride solution in which elements are easily ionized at the molar percentage of 0.5-2.2%. The specific impulse of the pulsed plasma thruster with water as the working medium provided by the invention is higher than that of the Teflon pulsed plasma thruster, and is adapted to the operation of low-power pulsed plasma thrusters; and when used in spacecrafts, the pulsed plasma thruster can be used for improving the efficiency, greatly saving the cost and space, and solving the problem of space replenishment of thrusters.

Description

technical field [0001] The invention relates to a thruster in the technical field of electric propulsion, in particular to a pulse plasma thruster using water as a working medium. Background technique [0002] With its superior performance, the electric propulsion system gradually replaces the traditional chemical propulsion system, and is widely used to provide maneuvering and control thrust for spacecraft. As a method of electric propulsion, pulsed plasma thrusters have become one of the current international electric propulsion research hotspots due to their high specific impulse, low power consumption, simple structure, light weight, good system inheritance and reliability. Typical low power pulsed plasma thrusters use Teflon as the working fluid. The high specific impulse and microimpulse (μN-s) properties of Teflon pulsed plasma thrusters are well suited for precise attitude control. However, there are some problems in the Teflon pulsed plasma thruster, such as: the ...

Claims

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Application Information

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IPC IPC(8): F03H1/00
Inventor 朱平李清
Owner ZHONGBEI UNIV
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