| 摘要 |
PROBLEM TO BE SOLVED: To provide a magnetic bearing having superior axial controllability and capable of reducing its size and weight. SOLUTION: A rotor 2 comprises a rotating shaft 2a, and a pair of discs 2b, 2b' held by the rotating shaft 2a in a state of being located on positions axially shifted inside with respect to a main pole 3. An axial control coil 15 is wound on a connecting portion 21 constituting a part of a stator 1, thereby axial control magnetic fluxψca is generated. Radial control magnetic fluxψr is enhanced at one side of a pair of annular portions 12, 12' and weakened at the other side by the axial control magnetic fluxψca to control an axial position of the rotor 2. COPYRIGHT: (C)2006,JPO&NCIPI
|
