PULSED-PLASMA THRUSTER USING UNBALANCED THETA-PINCH
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United States of America Patent
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Issued Date -
Mar 27, 2025
app pub date -
Jan 4, 2024
filing date -
Jan 4, 2024
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Abstract
A pulsed-plasma thruster using an unbalanced theta-pinch includes a gas-puff generator, an ionization convergent-divergent nozzle, and an accelerating coil set. The gas-puff generator supplies a gas puff in a pulsed manner; and the accelerating coil set is arranged on a side of a throat of the ionization convergent-divergent nozzle. After the gas puff enters the ionization convergent-divergent nozzle, an electric arc is generated between the pair of electrodes of the ionization convergent-divergent nozzle so that the gas puff is ionized and forms a plasma plume, and the electrodes are utilized to drive the accelerating coil set to generate axially non-uniform magnetic fields, to accelerate the plasma plume. Based on this, the control of thrust force generation is simple and reliable, with high energy utilization efficiency.
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