Pulse plasma thruster based on Z-PINCH non-sparking plug

Abstract

The invention discloses a pulse plasma thruster based on a Z-PINCH non-sparking plug. The pulse plasma thruster comprises a cathode, a solid propellant and an anode which are arranged between the baseand an outer-layer insulator in sequence, wherein the cathode is of a disc-type structure, the anode is of a conical structure, the cathode and the anode are arranged at the two ends of the solid propellant respectively, and the outer-layer insulator sleeves outside the solid propellant and is connected with the base. A sparking plug is not needed, so that the ignition and discharging integrationof the propellant is realized, and the ignition voltage is reduced; a spring does not need to be used for supplying the propellant, and no movable part is arranged, so that the structure is simple; and due to the unique structural design, the utilization efficiency of the propellant can be effectively improved, and the push-to-power ratio is higher; and the size is not specially limited.

Description

technical field [0001] The invention relates to a technology in the field of space electric propulsion technology and electric thruster design, in particular to a pulsed plasma thruster based on Z-PINCH without spark plug. Background technique [0002] The pulse plasma thruster uses pulse discharge to ablate, decompose, and ionize the propellant to make it into plasma. Traditional pulsed plasma thrusters usually use solid polytetrafluoroethylene as the propellant combined with spring supply, and some scholars have studied gas and liquid propellants. From a structural point of view, the traditional pulsed plasma thruster uses parallel plate electrodes combined with a spark plug to achieve ignition and pulsed arc generation. Some people have also proposed a coaxial pulsed plasma thruster, but the principle of ignition and thrust is that the plasma is in the magnetic field and Under the joint action of the discharge current, it is accelerated by the generalized Lorentz force t...

AI Technical Summary

Problems solved by technology

[0003] The present invention aims at defects such as existing pulsed plasma thrusters relying on spark plugs, resulting in many structural components that are too large in size, increasing potential safety hazards, and low propellant utilization, and proposes a pulsed plasma thruster based on Z-PINCH without spark plugs , no need for spark plug to assist ignition, realize the integration of propellant ignition and discharge, and reduce the ignition voltage; no spring for propellant supply, no moving parts, simple structure; unique structural design can effectively improve the utilization efficiency of propellant, Higher thrust-to-power ratio; no special size restrictions

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