Electrical generator or motor structure – Dynamoelectric – Rotary
Reexamination Certificate
2003-09-24
2008-03-11
Schuberg, Darren (Department: 2834)
Electrical generator or motor structure
Dynamoelectric
Rotary
C310S058000, C310S062000
Reexamination Certificate
active
07342333
ABSTRACT:
An outer rotor type multi-pole generator includes a stator mounted on a stationary support, and a rotor formed by fixedly attaching a magnet to the inner periphery of a bottomed cylindrical rotor yoke that is coaxially fixed to an end of a drive shaft rotatably supported by the support and that coaxially covers the stator. A plurality of radially extending vanes are integrally provided in a closed end of the rotor yoke, and a plurality of intake holes positioned between the vanes are formed in the closed end of the rotor yoke. It is thereby possible to reduce the number of components and improve the efficiency of assembly operations, and to set the overall axial length of the generator at a relatively small value while avoiding any reduction in the rigidity with which the rotor is supported.
REFERENCES:
patent: 2002/0053838 (2002-05-01), Okuda
patent: 2006/0250034 (2006-11-01), Umezu
patent: 195 13 134 (1996-10-01), None
patent: 2 536 222 (1984-05-01), None
patent: 9-93849 (1997-04-01), None
patent: 2001-339925 (2001-12-01), None
Arent & Fox LLP
Nguyen Hong-Vinh
Sawafuji Electric Co. Ltd.
Schuberg Darren
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