Power plants – Reaction motor – Electric – nuclear – or radiated energy fluid heating means
Patent
1989-09-25
1991-02-26
Casaregola, Louis J.
Power plants
Reaction motor
Electric, nuclear, or radiated energy fluid heating means
21912151, 31323141, F02K 1100
Patent
active
049952315
ABSTRACT:
An arcjet thruster has a body defining a constrictor and nozzle constituting an anode and forming an arc chamber. An elongated rod constitutes a cathode spaced from the constrictor by a gap generally coextensive with the arc chamber. An electrical potential is applied to the anode and cathode to generate an electrical arc in the arc chamber from the cathode to the anode. Propellant is supplied to the arc chamber with generation of the arc so as to produce thermal heating and expansion of the propellant through the nozzle. The thruster employs several features which improve its performance. One feature relates to the use of propellant blends with high specific impulse additives. Another feature relates to injection of the high specific impulse additive into the bulk propellant feed at the region of the cathode tip. Still another feature relates to recirculation of a small fraction of propellant from the constrictor region of the arc chamber and injection thereof into the bulk propellant feed at the region of the cathode tip. A final feature relates to regeneration and reaction of the bulk propellant feed within the structure of the anode body and circulation to the region of the cathode tip.
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Cassady R. J.
Knowles Steve
Simon Mark A.
Smith Richard D.
Smith William
Casaregola Louis J.
Olin Corporation
Thorpe Timothy S.
Wahl John R.
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