Title:
COMPOUND TYPE SUPERCONDUCTING BEARING DEVICE
Document Type and Number:
Japanese Patent JP3206044
Kind Code:
B2
Abstract:
PURPOSE: To raise the rotating speed of a rotary shaft supported by a superconducting bearing beyond the critical speed.
CONSTITUTION: Until a speed exceeds its critical lead a lower bearing 18b is raised so as to support a rotary shaft 10 with the lower bearing 18b and an upper bearing 18a. Hereby, rigidity and load capacity in the radial direction is enlarged, large whirling of the rotary shaft 10 can be prevented at the time of passing the critical speed, and when the speed exceeds its critical level, the lower bearing 18b is brought down so as to support the rotary shaft 10 with superconducting bearings.
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Inventors:
Hiromasa Fukuyama
Kazutoshi Seki
Akira Aihara
Kazutoshi Seki
Akira Aihara
Application Number:
JP29205591A
Publication Date:
September 04, 2001
Filing Date:
October 14, 1991
Export Citation:
Assignee:
Nippon Seiko Co., Ltd.
International Classes:
F16C32/00; F16C32/04; F16C39/02; F16C39/06; (IPC1-7): F16C32/00; F16C32/04
Domestic Patent References:
| JP1295019A | ||||
| JP517355A |
Attorney, Agent or Firm:
Kinzo Oyama (1 person outside)
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