HIGH SPEED MOTOR - ISHIKAWAJIMA HARIMA HEAVY IND

Title:

HIGH SPEED MOTOR

Document Type and Number:

Japanese Patent JP2002199655

Kind Code:

A

Abstract:

To provide a high speed motor capable of shortening the axis length of a rotor so as to enable improving risk speed with increasing axis stiffness of the rotor and also capable of improving stability of a rotating axis.

The high speed motor comprises a rotor axis 34 having a rotor part 31 forming a rotatable rotor, non-rotatable stator parts 26 oppositely placed in the radial direction with determined spaces to the rotor part 31 to form a stator 25, magnetic bearings 36, 36' supporting the rotor axis 34 rotatably with determined spaces across the rotor part 31 and at least two displacement sensors 40 detecting displacement of the rotor axis 34. The sensors 40 are mounted between magnetic bearing stators or insides of the magnetic bearing stators.

Inventors:

HASEGAWA KAZUMI
OZAKI SHINICHI
TAKAHASHI TOSHIO
KUWATA ITSUKI
SUGITANI MUNEYASU

Application Number:

JP2000399537A

Publication Date:

July 12, 2002

Filing Date:

December 27, 2000

Export Citation:

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Assignee:

ISHIKAWAJIMA HARIMA HEAVY IND

International Classes:

F16C32/04; H02K5/16; H02K7/09; H02K11/00; (IPC1-7): H02K7/09; F16C32/04; H02K5/16; H02K11/00

Domestic Patent References:

JP2000161358A	2000-06-13
JP2000120402A	2000-04-25
JP2000141104A	2000-05-23
JP2000262079A	2000-09-22
JPH10318258A	1998-12-02
JPH05184101A	1993-07-23
JPH0231020A	1990-02-01
JPS6396315A	1988-04-27
JPH0232868B2	1990-07-24

Attorney, Agent or Firm:

Minoru Hotta (1 person outside)

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