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Patent Searching and Data


Title:
MOTOR ROTOR AND METHOD OF CORRECTING ROTATIONAL BALANCE OF THE SAME
Document Type and Number:
WIPO Patent Application WO/2007/145033
Kind Code:
A1
Abstract:
A motor rotor (22) has a motor shaft (30), a permanent magnet (31) surrounding the motor shaft (30) so as to be aligned with the axis of the motor shaft, a pair of end rings (32, 32) surrounding the motor shaft (30) so as to be aligned with the axis of the motor shaft and holding the permanent magnet (31) from both axial sides, and a hollow circular cylindrical outer sleeve (33) surrounding in a fastening manner both the permanent magnet (31) and the pair of end rings (32, 32) so as to be aligned with the axis of the permanent magnet and the pair of end rings. One or both ends of the outer sleeve (33) axially project from the end faces of the end rings (32). The rotational balance of the motor rotor is corrected by cutting off a part of the projecting portion of the outer sleeve.

Inventors:
SHIBUI YASUYUKI (JP)
SHIMIZU MASAHIRO (JP)
Application Number:
PCT/JP2007/058949
Publication Date:
December 21, 2007
Filing Date:
April 25, 2007
Export Citation:
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Assignee:
IHI CORP (JP)
SHIBUI YASUYUKI (JP)
SHIMIZU MASAHIRO (JP)
International Classes:
H02K15/16; H02K29/00; F02B37/10
Foreign References:
JPH05316671A1993-11-26
JPH02231945A1990-09-13
JP2003180058A2003-06-27
JPS4835302A1973-05-24
US6085527A2000-07-11
Other References:
See also references of EP 2031742A4
Attorney, Agent or Firm:
HOTTA, Minoru (4F Kenchiku-Kaikan,26-20, Shiba 5-chom, Minato-ku Tokyo 14, JP)
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