Electrospray thruster with inverted geometry

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United States of America Patent

PATENT NO 11359613
SERIAL NO

16889998

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Abstract

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The present invention relates to electrospray thrusters, processes of making electrospray thrusters, and methods of using such electrospray thrusters. Applicant's thruster incorporates a unique geometry for the emitters and extractor grid that effectively eliminates ion interception on the grid, which is the primary failure mechanism of current devices, yet maintains the electric field conditions necessary for ion emission to occur. Without grid impingement, the thrust produced by the thruster is increased and thruster operational lifetime is increased substantially. Additionally, this non-traditional geometry also allows for higher electric fields at the emitter tip for a given applied voltage, thus enabling lower operational voltage of the thruster as compared to conventional designs.

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Patent Owner(s)

  • THE GOVERNMENT OF THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF THE AIR FORCE

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Holley, Zachary Andrew Helendale, US 1 0
Natisin, Michael Ryan Palmdale, US 1 0

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