Title:
SUPERCONDUCTING MAGNETIC BEARING DEVICE
Document Type and Number:
Japanese Patent JP3385771
Kind Code:
B2
Abstract:
PURPOSE: To reduce change of a load capacity accompanying with change of a bearing clearance, and exhibit stable performance.
CONSTITUTION: A permanent magnet unit 16a is constituted by a plurality of annular permanent magnets 17a to 17d which are arranged concentrically. The permanent magnet unit 16a is opposed to a superconductor 13. Density of magnetic flux is increased in the vicinity of permanent magnets 17b, 17c by a part of permanent magnets 17b, 17c. Magnetic fluxes from the remaining permanent magnets 17a, 17d are made to reach a part apart from the permanent magnets 17a, 17d.
Inventors:
Hiromasa Fukuyama
Takeshi Takizawa
Takeshi Takizawa
Application Number:
JP2270395A
Publication Date:
March 10, 2003
Filing Date:
February 10, 1995
Export Citation:
Assignee:
Nippon Seiko Co., Ltd.
International Classes:
F16C32/04; F16C39/06; H01L39/00; H02J15/00; (IPC1-7): F16C32/04; H01L39/00
Domestic Patent References:
| JP4331815A |
Attorney, Agent or Firm:
Kinzo Oyama (1 person outside)
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