Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1996-11-21
1998-08-04
LaBelle, Clayton E.
Electrical generator or motor structure
Dynamoelectric
Rotary
310 58, 310 59, H02K 908, H02K 910, H02K 922
Patent
active
057898332
ABSTRACT:
A totally-enclosed traction motor for electric railcar including, a frame structure of totally-enclosed cylindrical shape which is provided with a window, a rotor shaft rotatably supported to the frame structure coaxially with the frame structure, a rotor of cylindrical shape coaxially fixed to the rotor shaft which is rotated with the rotor shaft as one body, a stator of cylindrical shape fixed to an inner surface of the frame structure coaxially with the rotor shaft with keeping a gap between an inner surface of the stator and an outer surface of the rotor, and a cooling body mounted to the frame structure so as to cover the window and provided with a plurality of heat absorbing fins fixed to the cooling body from the inside and a plurality of radiation fins fixed to the cooling body from the outside.
REFERENCES:
patent: 518291 (1894-04-01), Thomson
patent: 2321126 (1943-06-01), Breuer
patent: 2787720 (1957-04-01), Ethier et al.
patent: 4110643 (1978-08-01), Muller
patent: 4311932 (1982-01-01), Olson
patent: 4395816 (1983-08-01), Pangburn
patent: 4742257 (1988-05-01), Carpenter
patent: 4839547 (1989-06-01), Lordo et al.
Kinoshita Tsutomu
Yagi Nobuyuki
Kabushiki Kaisha Toshiba
Labelle Clayton E.
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