Device for cooling an electrical machine, in particular a...

Details Device for cooling an electrical machine, in particular a... Device for cooling an electrical machine, in particular a...

2006-06-13

2006-06-13

Nguyen, Tran (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

C310S059000, C310S06000A, C310S064000

Reexamination Certificate

active

07061148

ABSTRACT:
The cooling device according to the invention comprises, in each of the stator recesses which contain windings, a cooling tube located in the longitudinal direction of the recess and supplied with cooling fluid. The cooling tube is located in the inlet portion of each of the recesses which is closest to the air gap, and thus constitutes a thermal barrier between the windings of the stator and the permanent magnets carried by the rotor. A device for the external cooling of the stator may be combined with the tubes for cooling the internal portion of the stator.

REFERENCES:
patent: 4836123 (1989-06-01), Grinde et al.
patent: 5892307 (1999-04-01), Pavlovich et al.
patent: 6424069 (2002-07-01), Pullen et al.
patent: 6879069 (2005-04-01), Weidman et al.
patent: 2003/0001441 (2003-01-01), Peterson et al.
patent: 199 50 418 (2001-04-01), None
patent: 101 58 757 (2003-06-01), None
patent: 796 970 (1958-06-01), None
patent: 2 261 327 (1993-05-01), None
French Search Report FR 0308745, dated Apr. 2, 2004.

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