Micropulse plasma thruster

A plasma and thruster technology, applied in the field of plasma thruster equipment, can solve problems such as increasing mass and space, and achieve the effects of reducing weight, improving reliability, and improving performance

Active Publication Date: 2017-03-22
LANZHOU INST OF PHYSICS CHINESE ACADEMY OF SPACE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to the literature, some researchers use two or more discharge chambers, that is, one capacitor corresponds to two or mo...

Method used

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Examples

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Embodiment Construction

[0018] A micro-pulse plasma thruster, including an anode, a cathode plate, a capacitor, a propellant, and a spark plug, the micro-pulse plasma thruster is a common anode type; the cathode plate 2 is symmetrically arranged around the anode 5, and the anode 5 and the cathode plate The propellant 3 is arranged between the two, and the side of the propellant 3 is provided with an anti-creep ceramic insulating sheet; the cathode of the capacitor 7 is connected to the cathode plate 2, and the anode of the capacitor 7 is connected to the anode 5; the spark plug 1 is arranged on the cathode plate 2.

[0019] Taking four discharge cells as an example below, the present invention will be further described in detail.

[0020] refer to figure 1 , figure 2 , a micro-pulse plasma thruster, which is a common anode type, consists of a non-polar energy storage capacitor 7, four identical flat-type cathode plates 2, and an anode 5 with a hollow structure (the hollow structure can reduce the w...

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Abstract

The invention discloses a micropulse plasma thruster which is common anode type; cathode plates are symmetrically arranged at the periphery of an anode of the micropulse plasma thruster, a propellant is arranged between the anode and the cathode plates, and discharge chambers are formed in a space among the anode, the cathode plates and the propellant; anti-creeping ceramic insulating plates are arranged at the sides of the propellant; a cathode of a capacitor is connected with the cathode plates; an anode of the capacitor is connected with the anode; and spark plugs are arranged on the cathode plates. The invention provides a concept of a parallel-plate common-anode type micropulse plasma thruster based on an existing relatively-mature pulse plasma thruster technology for feeding the propellant on the tails of the parallel plates, and the meaning of the concept is that singe cathode plate is changed into four same cathode plates which are symmetrically arranged at the periphery of an anode plate with a hollow structure on the basis of the existing mature pulse plasma ion thruster design, so that four same discharge chamber structural designs are formed, impulse bit is improved while high specific impulse is kept, and therefore, the purpose of improving total impulse is realized.

Description

technical field [0001] The invention relates to a micropulse plasma thruster device used in space, and belongs to the technical field of spacecraft propulsion. Background technique [0002] The pulse plasma thruster is a kind of plasma based on the ignition electrode, which causes the capacitor to discharge and ablate the propellant surface between the two electrodes connected by the capacitor, and the vaporized and thermally ionized propellant is ejected under the action of electromagnetic force and aerodynamic force A pulsed plasma device that generates thrust. It is mainly used for tasks such as micro-nano satellite rotation elimination, orbit positioning (orbit insertion), long-term on-orbit (orbit maintenance), orbit and position adjustment, attitude control, formation flight, and orbit unloading. Electric propulsion technology has increasingly become one of the symbols to measure the advancement of related satellite platforms. The micropulse plasma thruster can gener...

Claims

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Application Information

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IPC IPC(8): F03H1/00
CPCF03H1/0006F03H1/0087
Inventor 王尚民吴先明柯于俊贾艳辉田立成张天平冯杰黄永杰
Owner LANZHOU INST OF PHYSICS CHINESE ACADEMY OF SPACE TECH
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