Gas cooled endwindings for dynamoelectric machine rotor and...

H - Electricity – 02 – K

Patent

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Details

H02K 9/10 (2006.01) H02K 1/32 (2006.01) H02K 3/24 (2006.01) H02K 3/51 (2006.01)

Patent

CA 2399339

A gas cooled dynamoelectric machine is provided that includes a rotor 10 having a body portion (14), axially extending coils (22), endwindings (28), and a plurality of spaceblocks (140, 240, 340, 440) disposed between the endwindings, so that a plurality of cavities (142, 242, 342) are defined between mutually adjacent endwindings and spaceblocks. To cool the endwindings, at least one of the spaceblocks has a radially-extending duct (144, 244, 344, 444) with an outlet opening (146, 246, 248, 362, 462) disposed to direct cooling gas flowing therethrough generally in the direction of the central region of the adjacent cavity.

L'invention concerne un moteur électrodynamique refroidi par gaz, qui comprend un rotor (10) présentant une partie corps (14), des bobines (22) s'étendant axialement, des bobinages d'extrémité (28) et une pluralité de blocs d'espacement (140, 240, 340, 440) disposés entre les bobines d'extrémité, de sorte qu'une pluralité de cavités (142, 242, 342) sont définies entre des bobines d'extrémité et des blocs d'espacement mutuellement adjacents. Pour le refroidissement des bobines d'extrémité, au moins un des blocs d'espacement présente un conduit s'étendant radialement (144, 244, 344, 444) pourvu d'un orifice de sortie (146, 246, 248, 362, 462) agencé pour diriger un gaz de refroidissement s'écoulant généralement à travers ledit orifice en direction de la région centrale de la cavité adjacente.

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