Side-feed supply device for pulsed plasma electric thruster

Abstract

The invention discloses a side-feed supply device for a pulsed plasma electric thruster. The side-feed supply device comprises two sets of supply assemblies of symmetric structures, the supply assemblies are fixedly connected to a bottom plate of the electric thruster, the supply assemblies comprise a first supply bracket, a first tension spring, a first push rod, a first supply blocking sheet, afirst solid propellant, a second supply bracket, a second tension spring, a second push rod, a second supply blocking sheet and a second solid propellant, the opposite ends of the first solid propellant and the second solid propellant are of bevel structures which constitute a V-shaped discharge groove, an opening of the V-shaped discharge groove faces the tail end of an electrode plate, and a cone limiting table is arranged at the position, at the included angle of the V-shaped discharge groove, of the inner side of an anode plate. According to the side-feed supply device, the two solid propellants can be fed, a V shape is constituted by the ablation end faces of the propellants in a discharge room, thus the area swept by an electrical discharge arc can be increased, and the ablation quality of single pulse under the same condition is also improved.

Description

technical field [0001] The invention belongs to the technical field of spacecraft propulsion, and relates to a working fluid supply device for space electric propulsion, in particular to a side feed supply device for pulse plasma electric propulsion. Background technique [0002] In recent years, with the development of emerging space exploration technologies such as small satellites, planetary probes, deep space exploration and interstellar navigation, human beings have more and more urgent needs for space exploration, and there are more and more space exploration activities. The types and numbers of satellites have increased and become more advanced. This requires the propulsion system on the spacecraft to be lighter, smaller, and more efficient. Therefore, it is urgent to develop propulsion technologies with high specific thrust, compact structure, less propellant consumption, and low cost. Traditional chemical thrusters cannot meet the requirements of microsatellites fo...

AI Technical Summary

Problems solved by technology

At present, pulsed plasma electric propulsion generally adopts a propellant configuration with a rectangular end face and feeds through the tail. However, in this way, the area swept by the discharge arc is small, which restricts the improvement of the impulse.

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