Satellite attitude control

Details Satellite attitude control Satellite attitude control

1988-02-29

1990-04-24

Peters, Jr., Joseph F.

Aeronautics and astronautics

Spacecraft

Attitude control

244165, B64G 128

Patent

active

049193678

ABSTRACT:
Method and apparatus for controlling the attitude of a satellite in space by thruster reaction forces without loss of thruster fluid into space. A jet of gas, preferably compressed air, comprising reaction mass stored in a reservoir on board, is discharged in a predetermined direction into an endless enclosed evacuated volume. The molecules of discharged gas are scavenged from the volume and recompressed and restored to the reservoir. The discharged gas is scavenged sufficiently rapidly from the volume to prevent appreciable increase in the static pressure encountered by repeated bursts from the jets. The apparatus comprises an endless duct network circumferentially surrounding the two axes of the satellite, with solenoid operated thrusters selectively to discharge the gas jets and a vacuum-pressure pump to scavenge the air molecules, recompress them and pump them back into the reservoir tank.

REFERENCES:
patent: 2856142 (1958-10-01), Haviland

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