Electrical generator or motor structure – Dynamoelectric – Rotary
Reexamination Certificate
2011-08-09
2011-08-09
Leung, Quyen (Department: 2834)
Electrical generator or motor structure
Dynamoelectric
Rotary
C310S156010, C310S156530
Reexamination Certificate
active
07994666
ABSTRACT:
A permanent magnet electrical rotating machine having a permanent magnet rotor and a stator, wherein:a plurality of permanent magnets are disposed in a rotor iron core of the permanent magnet rotor along a periphery of the rotor iron core, polarities thereof being alternately changed;a cooling airflow channel is formed between each pair of adjacent opposite poles on the rotor iron core; and the cooling airflow channel has an approximately trapezoidal shape on an outer periphery side of the rotor iron core; and extends from an end on a central side in a radial direction of the approximately trapezoidal shape to a radial center.
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Office Action issued in Chinese Patent Application No. 2007101936729 on Feb. 5, 2010.
Office Action issued in Chinese Patent Application No. 2007101936729 on Aug. 4, 2010.
Aizawa Shuji
Fujigaki Tetsuo
Iizuka Motonobu
Iwai Yasushi
Kimura Mamoru
Antonelli, Terry Stout & Kraus, LLP.
Desai Naishadh N
Hitachi , Ltd.
Leung Quyen
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