CONTROLLED RADIAL MAGNETIC BEARING - SANKYO SEIKI SEISAKUSHO KK

Title:

CONTROLLED RADIAL MAGNETIC BEARING

Document Type and Number:

WIPO Patent Application WO/2003/004890

Kind Code:

A1

Abstract:

The magnetic flux density by magnetic poles of electromagnets (M1 to M12) arranged at the same place in the axial direction of a rotor (1) at predetermined intervals in the circumferential direction of the rotor (1) varies gradually in the circumferential direction of the rotor (1). Even though there is a difference between the maximum and minimum of the magnetic flux density, the variation of the magnetic flux density between the magnetic poles of adjacent electromagnets is small and smooth. The sensitivity is good and stable sensing result is obtained.

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Inventors:

OKADA YOHJI (JP)
KANEBAKO HIDEKI (JP)
ABE KEISUKE (JP)

Application Number:

PCT/JP2002/006765

Publication Date:

January 16, 2003

Filing Date:

July 04, 2002

Export Citation:

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Assignee:

SANKYO SEIKI SEISAKUSHO KK (JP)
OKADA YOHJI (JP)
KANEBAKO HIDEKI (JP)
ABE KEISUKE (JP)

International Classes:

F16C32/04; F16C39/06; (IPC1-7): F16C32/04

Foreign References:

US6194800B1	2001-02-27
JPS58184319A	1983-10-27

Attorney, Agent or Firm:

Gotoh, Takahide (Inter Bldg. 9-14, Nishishinjuku 3-chom, Shinjuku-ku Tokyo, JP)

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