Spacecraft attitude control system has electrically and thermally conducting magnetic fluid rotated in rings by magneto hydrodynamic pump

摘要

A spacecraft attitude control system has pipe rings (19) with Gallium alloy electrically conducting magnetic fluid (20) rotated by a magneto hydrodynamic pump with magnets (21, 22) in guides (32) to give torque impulses about the three axes (16 - 18) and temperature gradients created by cobalt alloy blocks (27) to provide heat transfer.