Title:
MAGNETIC BEARING
Document Type and Number:
Japanese Patent JP3192207
Kind Code:
B2
Abstract:
PURPOSE: To prevent bearing bodies made of superconductor from unfavorably being magnetized through the influence of magnetic field applying means when the bearing bodies are cooled from a normal conducting state to a superconducting state.
CONSTITUTION: During the cooling for transferring bearaing bodies 5 and 6 made of superconductor from a normal conducting state to a superconducting state, a supporting shaft 1 is axially moved by a shaft movement means 8, and the position of magnetic field applying means 2 and 3 made of permanent magnet opposed to the bearing bodies 5 and 6 is moved. Thus, the bearing bodies 5 and 6 are prevented from unfavorably being magnetized through a magnetization effect caused by the applied magnetic field during the cooling.
Inventors:
Yuichi Ishikawa
Application Number:
JP9779392A
Publication Date:
July 23, 2001
Filing Date:
April 17, 1992
Export Citation:
Assignee:
DOWA MINING CO.,LTD.
International Classes:
F16C32/04; F16C39/06; H01L39/00; (IPC1-7): H01L39/00; F16C32/04
Domestic Patent References:
| JP587142A | ||||
| JP5248438A | ||||
| JP48913A | ||||
| JP63243523A | ||||
| JP3103086A |
Attorney, Agent or Firm:
Setsuo Aniya (2 outside)