A Hall thruster anode structure
A Hall thruster and anode structure technology, applied in the direction of thrust reverser, machine/engine, plasma, etc., can solve the problem of deteriorating anode working conditions and thruster discharge conditions, gas diffusion uniformity needs to be improved, and processing difficulties, etc. problems, to achieve the effects of reducing the difficulty and cost of processing and installation, simplifying the structure, and uniformly distributing the gas
Active Publication Date: 2022-03-01
HARBIN INST OF TECH
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Problems solved by technology
[0004] The integrated structure of the anode gas distributor currently used uses welding to connect the anode and the gas distributor. The processing is difficult and the cost is high, and the gas can only be injected to the anode side in the channel, and the uniformity of gas diffusion needs to be improved. At the same time The integrated structure intersects with the magnetic field lines, so that electrons bombard the anode along the magnetic field lines, which deteriorates the working conditions of the anode and the discharge condition of the thruster
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[0025] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.
[0026] The present invention will be described in detail below with reference to the accompanying drawings and examples.
[0027] Such as Figure 1-Figure 3 As shown, a Hall thruster anode structure includes a gas distribution chamber 1 and a gas distribution baffle. The magnetic force lines at the position are arranged in parallel, and the gas distribution baffle includes the inner baffle ring 2 and the outer baffle ring 3, that is, the inner baffle ring 2 and the outer baffle ring 3 are arranged parallel to the magnetic force lines at the position of the anode , the air distribution chamber 1 is enclosed by an outer wall, an upper end face, an inner wall and a lower end face, the inner baffle ring 2 is fixedly connected with the inner wall of the air distribution chamber 1, and the outer baffle The ring ...
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The invention provides an anode structure of a Hall thruster, which includes a gas distribution cavity and a gas distribution baffle, the gas distribution cavity is an annular cavity structure with an isosceles trapezoidal longitudinal axis section, and the magnetic force lines at the positions of the gas distribution baffle and the anode Arranged in parallel, the gas distribution baffle includes an inner baffle ring and an outer baffle ring, the gas distribution cavity is enclosed by the outer wall, upper end surface, inner wall and lower end surface, and the inner baffle ring is fixed to the inner wall of the air distribution cavity Connection, the outer baffle ring is fixedly connected with the outer wall of the air distribution cavity, and a plurality of radial air outlet holes are symmetrically and evenly opened in the circumferential direction on the inner wall and outer wall of the air distribution cavity, and the inner baffle ring and the outer baffle ring A gas mixing chamber is formed between the sidewalls on the respective sides. The invention simplifies the processing and installation process of the integrated structure of the anode gas distributor, reduces the cost, homogenizes the diffusion of the working medium gas of the thruster, reduces the sputtering erosion of the integrated structure by the electrons in the discharge channel, and optimizes the ionization and discharge performance of the thruster .
Description
technical field [0001] The invention belongs to the technical field of Hall thrusters, and in particular relates to an anode structure of a Hall thruster. Background technique [0002] Hall Effect Thruster (HET for short) is an electric thruster that uses orthogonal electromagnetic fields to ionize and accelerate atomic working fluids, convert electrical energy into ion kinetic energy, and obtain higher specific impulse. It has the characteristics of simple structure, high specific impulse, high efficiency, long working life, high power density, long service time in orbit, etc. It is suitable for attitude control, orbit correction, orbit transfer, power compensation, position maintenance, Repositioning, off-orbit processing, space exploration and interstellar voyage and other tasks are currently the most widely used and most mature electric propulsion systems in the world. [0003] The working principle of the permanent magnet Hall thruster is that two ceramic sleeves with ...
Claims
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IPC IPC(8): F03H1/00H05H1/34
CPCF03H1/0081H05H1/34F03H1/0075F03H1/0012
Inventor 丁永杰魏立秋李鸿于达仁
Owner HARBIN INST OF TECH