SUPERCONDUCTIVE MAGNETIC BEARING

Title:

SUPERCONDUCTIVE MAGNETIC BEARING

Document Type and Number:

Japanese Patent JP2002276659

Kind Code:

A

Abstract:

To provide a superconductive magnetic bearing capable of reducing a rotation loss by reducing an eddy current generated in a permanent magnet unit and a yoke by nonuniformity of a magnetic field created by a superconductor unit.

This superconductive magnetic bearing 22 is provided with a fixed side bearing part 23 having an annular superconductor unit 26 provided in a fixed part 20 and a rotation side bearing part 24 having annular permanent magnet units 28 and 29 provided in the rotor 21 so as to be opposed to the super conductor unit 26, and the rotor 21 is fitted to the fixed part 20 in no contact therewith by the pinning effect of the superconductor constituting the superconductor unit 26. The permanent magnet units 28 and 29 are constituted of a plurality of permanent magnet bodies stacked via insulating layers.

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Inventors:

MIYA KENZO
DEMACHI KAZUYUKI
KAMENO HIRONORI
TAKAHATA RYOICHI

Application Number:

JP2001076170A

Publication Date:

September 25, 2002

Filing Date:

March 16, 2001

Export Citation:

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Assignee:

MIYA KENZO
DEMACHI KAZUYUKI
KOYO SEIKO CO

International Classes:

F16C32/04; G03G9/087; (IPC1-7): F16C32/04

Domestic Patent References:

JPS6318950A	1988-01-26
JPH0479741A	1992-03-13
JPH05248436A	1993-09-24
JP2000136825A	2000-05-16
JPH11220847A	1999-08-10
JPH09242755A	1997-09-16
JPH059149U	1993-02-05

Attorney, Agent or Firm:

Eisuke Kishimoto (4 outside)

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