Lifetime arcjet thruster

Details Lifetime arcjet thruster Lifetime arcjet thruster

1988-02-10

1990-03-13

Stout, Donald E.

Power plants

Reaction motor

Electric, nuclear, or radiated energy fluid heating means

21912151, 31323151, F03H 100

Patent

active

049074075

ABSTRACT:
An arcjet thruster has an anode body forming a constrictor and a nozzle which define an arc chamber. The thruster also has a cathode in the form of a rod having a tip and being spaced upstream from the constrictor. The thruster employs several features which reduce anode and cathode erosion and increase the operational life of the thruster. One set of features relate to the employment of cathode and anode shaping. Another feature relates to the use of a propellant injector having a series of radially and tangentially arranged passages for providing direct injection of propellant gas into the arc chamber and enhanced convective cooling of the anode.

REFERENCES:
patent: 3309873 (1967-03-01), Cann
patent: 3456146 (1969-07-01), Hess
patent: 4304980 (1981-12-01), Fridlyand et al.
patent: 4506136 (1985-03-01), Smyth et al.
patent: 4548033 (1985-10-01), Cann
patent: 4800716 (1989-01-01), Smith et al.
patent: 4805400 (1989-02-01), Knowles
Arc-Jet Thrustor for Space Propulsion, Lewis E. Wallner and Joseph Czika, Jr. 1965.
Physics of Electric Propulsion, Robert G. John, McGraw-Hill Book Co., 1968, pp. 89-93, 118-131.
The Arc Heated Thermal Jet Engine, Friedrich G. Penzig, Mar. 1968.

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