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Hall thruster gas distributor structure with porous material partition plates

A gas distributor, Hall thruster technology, applied in thrust reverser, using plasma, machine/engine, etc., can solve the problem of reducing anode life and other problems, so as to improve anode life, improve performance, and improve the degree of gas homogenization Effect

Active Publication Date: 2019-04-02
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to solve the problem that in the existing Hall thruster, when the degree of gas homogenization is ensured, ion beam backflow is easy to form deposits on the separator, thereby reducing the life of the anode, and further provides a separator with a porous material. Hall thruster gas distributor structure

Method used

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  • Hall thruster gas distributor structure with porous material partition plates
  • Hall thruster gas distributor structure with porous material partition plates

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specific Embodiment approach 1

[0024] Specific implementation mode one: combine figure 1 , 2 Describe this embodiment, a Hall thruster gas distributor structure with a porous material partition, which includes a mounting pillar 1, an air guide tube 2,

[0025] It also includes a shell assembly and a bulkhead assembly disposed inside the shell assembly,

[0026] The shell assembly includes an upper inner ring 3 of the top shell, a lower inner ring 4 of the top shell, an outer ring 5 of the top shell and a bottom shell 6, wherein the bottom shell 6 is a ring structure and has openings along its circumference The upward annular groove 6-1, the mounting pillar 1 and the air guide tube 2 are respectively fixed under the bottom shell 6, and the air guide tube 2 is arranged through the annular groove 6-1, and the top shell The upper inner ring 3 and the lower inner ring 4 of the top shell are fixed on the top of the side wall of the annular groove 6-1 sequentially from top to bottom, and the top shell outer ring...

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Abstract

The invention discloses a Hall thruster gas distributor structure with porous material partition plates, and belongs to the technical field of Hall thrusters. The problem that according to an existingHall thruster, on the condition of ensuring the gas homogenization degree, an ion beam flows back and is likely to be deposited on the partition plate, and therefore the service life of an anode is shortened is solved. A first baffle is fixedly arranged on the side wall, close to an outer ring of a top shell layer, on a lower inner ring of the top shell layer, a gap is formed between the first baffle and the inner wall of the outer ring of the top shell layer, a second baffle is fixedly arranged on the side wall, close to an upper inner ring of the top shell layer, of the outer ring of the top shell layer, the second baffle is located above the first baffle, a gap is formed between the second baffle and the upper inner ring of the top shell layer, a gap is formed between the second baffleand the first baffle, the first-stage partition plate and the second-stage partition plate are both made from porous materials and gaps are formed between the first-stage partition plate and the bottom of an annular groove, between the first-stage partition plate and the second-stage partition plate and between the second-stage partition plate and the first baffle.

Description

technical field [0001] The invention relates to a Hall thruster gas distributor structure with a porous material partition, belonging to the technical field of Hall thrusters. Background technique [0002] The Hall thruster is a widely used electric propulsion device at present. Compared with the traditional chemical propulsion device, it has the advantages of high efficiency, high specific impulse and long life. Its working principle is: there are mutually orthogonal radial magnetic fields and axial electric fields in the channel of the Hall thruster. The electrons emitted from the cathode into the channel drift to the anode under the action of the magnetic field and electric field, and are ejected from the gas distributor. The working medium gas undergoes impact ionization, and the ionized electrons are confined in the channel by the radial magnetic field due to their small mass, while the ion mass is large, and the magnetic field basically has no effect on it. out, there...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03H1/00
CPCF03H1/0012F03H1/0087
Inventor 丁永杰李鸿魏立秋于达仁
Owner HARBIN INST OF TECH
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