Patent ID: 6703737
Filing Date: 2004-03-09
Classification: F16C,H02K,Y02E

Abstract:
A planar superconductive bearing structure comprisinga rotatable member having a pair of short-circuited coils wound of a superconductive wire having zero electrical resistance at a temperature below a superconductivity transition temperature and each formed on an end of the rotatable member, a plurality of stationary members each formed as closed loops formed as planar short-circuited coils wound of the superconductive wire configured to have two non-equal circular-arc sides joined at the ends thereof by radial segments and each angularly positioned around and in planes parallel to the short-circuited coils of the rotatable member, a cooling agent fir cooling the rotatable and stationary member closed loops to a temperature below the superconductivity transition temperature, and apparatus for energizing the cooled rotatable and stationary member closed loops and establishing magnetic linkages therebetween forming a bearing supporting a rotation of the rotatable member in an equilibrium stable free state within the stationary members.