Electrical generator or motor structure – Dynamoelectric – Rotary
Reexamination Certificate
2003-08-26
2008-10-07
Nguyen, Tran (Department: 2834)
Electrical generator or motor structure
Dynamoelectric
Rotary
C310S156530, C310S156560
Reexamination Certificate
active
07432624
ABSTRACT:
The object of the invention is a rotor (4) for a permanent-magnet electrical machine, comprising an axle (6) mounted to the machine body with bearings, a rotor pack made of iron and arranged around the axle (6), as well as permanent magnets (10) adapted to the rotor pack, used for forming the magnetic poles (9) of the rotor. According to the invention, the rotor poles (9) contain a slot (24) extending from both edges of the pole (9) essentially towards the centre of the pole; the slot (24) is closer to the outer circumference (3) of the rotor than the central axle of the rotor. The invention also includes a method for manufacturing such a rotor.
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Japanese Office Action, dated Aug. 21, 2007, corresponding to Japanese Patent Application No. 2004-530293 and English-translation thereof.
Ikaheimo Jouni
Kolehmainen Jere
Pekola Jari
ABB OY
Buchanan & Ingersoll & Rooney PC
Nguyen Tran
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