Arcjet anode

Details Arcjet anode Arcjet anode

1993-09-10

1995-11-07

Paschall, Mark H.

Electric heating

Metal heating

By arc

21912148, 2191215, 21912149, 602031, B23K 1000

Patent

active

054649617

ABSTRACT:
There is disclosed an anode for an arcjet thruster which resists erosion during start-up on constriction during steady-state operation. The anode includes a converging upstream portion, a diverging downstream portion and a constricted portion disposed therebetween. In one embodiment of the invention, rails formed in the constricted portion accelerate the passage of an arc during start-up reducing erosion. In a second embodiment, a higher strength material resists bulging as a result of the thermal gradient within the nozzle.

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