Power plants – Reaction motor – Ion motor
Patent
1996-12-17
1999-07-20
Thorpe, Timothy S.
Power plants
Reaction motor
Ion motor
3133601, F03H 100, H05H 100
Patent
active
059242779
ABSTRACT:
Ion erosion of grids is reduced in an ion thruster with a multiple-grid ion-optics system. The thruster has an array of aperture sets in which aperture areas change in a perimeter region of the array. In one ion-optics system embodiment, a screen aperture area is reduced and a decelerator aperture area is increased in aperture sets that are proximate to the perimeter of the array. Prototype tests of this embodiment have illustrated significant reduction of ion erosion.
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Beattie John R.
Matossian Jesse N.
Williams John D.
Duraiswamy V. D.
Hughes Electronics Corporation
Kim Ted
Sales M. W.
Thorpe Timothy S.
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