Gas distributor/anode integrated structure for Hall thruster

Abstract

The invention discloses a gas distributor / anode integrated structure for a Hall thruster and belongs to the field of Hall thrusters. The gas distributor / anode integrated structure aims to solve the problems of expansion of an air outlet of a gas distributor of a Hall thruster and non-uniform distribution of neutral gas near an anode. The gas distributor / anode integrated structure comprises an anode and a gas distributor, wherein the gas distributor is a two-stage buffer chamber, and the lower end face of a secondary-stage buffer chamber body and the upper end face of a primary-stage buffer chamber body are coaxially fixed together through laser welding; multiple radial air outlets are evenly formed in the peripheral direction of the excircle side wall of the secondary-stage buffer chamber body, and the radial air outlets are flush with the radial center of a discharging channel of the Hall thruster; an air outlet baffle is arranged on a radial extension annular face of the upper end face of the secondary-stage buffer chamber body; the anode is an annular structure arranged on the upper end face of the primary-stage buffer chamber body, and the anode and the primary-stage buffer chamber body are of an integral part structure; the middle of the round side wall of the anode is of a hollowed-out structure, and the peripheral hollowed-out angle exceeds half of the whole periphery; the top of the anode is arranged within the zero magnetic field of the Hall thruster.

Description

technical field [0001] The invention belongs to the field of Hall thrusters. 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 anode is an important component of the Hall thruster body, which is responsible for receiving electrons and forming an important function of a discharge circuit. The ...

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of hole reaming of the gas outlet of the Hall thruster gas distributor and the uneven distribution of neutral gas near the anode, and provides a scheme for changing the structure of the gas distributor and integrating it with the anode

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