Patent ID: 9197110
Filing Date: 2015-11-24
Classification: F16C,H02K

Abstract:
1. An apparatus, comprising: a right cylindrical rotor rotatable about a central longitudinal axis, wherein said rotor comprises a first rotor surface comprising metal and a second rotor surface comprising metal, wherein said first rotor surface and said second rotor surface are located at opposite ends of said rotor; a first pair of concentric electrodes, comprising a first electrode and a second electrode, wherein said first electrode and said second electrode are spaced from each other and are spaced by a first gap from said first rotor surface; a second pair of concentric electrodes, comprising a third electrode and a fourth electrode, wherein said third electrode and said fourth electrode are spaced from each other and are spaced by a second gap from said second rotor surface; at least one source of radio frequency (RF) voltage connected across said first electrode and said second electrode to form a first series circuit, wherein said at least one source of RF voltage is connected across said third electrode and said fourth electrode to form a second series circuit; at least one inductor in said first series circuit; at least one inductor in said second series circuit; and a passive magnetic bearing system configured to provide radial and tilt stabilization of said rotor with respect to said central longitudinal axis upon rotation of said rotor.