H - Electricity – 01 – J
Patent
H - Electricity
01
J
313/27, 355/29
H01J 35/10 (2006.01) F16C 39/06 (2006.01) H01J 35/26 (2006.01)
Patent
CA 1186010
- 32 - Abstract of the Disclosure An evacuated casing has outer and inner tubes respectively covering the outer and inner peripheries of a hollow cylindrical rotor. Ring members of a ferromagnetic material are provided in the inner wall of the rotor and face permanent magnets, which are provided on the inner periphery of the inner tube and are magnetized in the radial directions of the rotor. The permanent magnets are fitted on a cylindrical yoke between first and second poles formed thereon, the fluxes being inserted in the rotor via the inner tube. The first poles are disposed to face the respective ring members, while the second pole is disposed to face the opposed end faces of the ring members. With this arrangement, contactless magnetic bearings are formed to support the rotor stably.
408225
Sudo Hajime
Takahashi Atsushi
Ridout & Maybee Llp
Tokyo Shibaura Denki Kabushiki Kaisha
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