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A Hall thruster gas distributor structure with porous material separator

A gas distributor, Hall thruster technology, applied in thrust reverser, using plasma, machine/engine and other directions, can solve the problem of reducing anode life and other problems, and achieve the effect of improving anode life, reducing processing difficulty and improving performance

Active Publication Date: 2020-04-24
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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  • A Hall thruster gas distributor structure with porous material separator
  • A Hall thruster gas distributor structure with porous material separator

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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 relates to a Hall thruster gas distributor structure with a porous material partition, belonging to the technical field of Hall thrusters. The invention solves the problem that in the existing Hall thruster, under the condition that the degree of gas homogenization is ensured, ion beam backflow is easy to form deposits on the separator, thereby reducing the service life of the anode. A first baffle is fixed on the side wall of the lower inner ring of the top shell close to the outer ring of the top shell, and there is a gap between the first baffle and the inner wall of the outer ring of the top shell. A second baffle is fixed on the side wall of the ring close to the inner ring on the top shell, and the second baffle is located above the first baffle, and the second baffle is connected to the inner ring on the top shell and the first baffle. There is a gap between the second baffle and the first baffle, and the first and second baffles are all porous material baffles, wherein the first baffle and the bottom of the annular groove, the first baffle and the second baffle There are gaps between the plates as well as between the secondary separator 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 Patents(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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