Magnetically supported and torqued momentum reaction sphere

Claim 1

Angular momentum exchange apparatus comprising, in combination: a massive rotor of substantially spherical configuration having at least an outer surface of electrically conductive and easily magnetized material; a housing for said rotor; drive means carried by said housing for cooperation with said surface to cause angular acceleration of said rotor about each of a plurality of axes; and means supporting said rotor in said housing for rotation free from contact therebetween, the drive means and the last named means comprising a plurality of pairs of laminated sectors located at opposite ends of mutually orthogonal diameters of said housing, each sector carrying a centering winding and a torquing winding, the torquing windings being positionally related to the centering windings of the sectors of each pair so as to cause rotation of said rotor about a different one of said axis in either of two opposite directions depending on the phase relation between the voltages energizing said windings, and further comprising capacitors, in series with said centering windings, having capacitive reactances of said centering windings, at the frequency of energization thereof, when the rotor is centered in the house.