H - Electricity – 02 – K
Patent
H - Electricity
02
K
310/28, 310/91
H02K 1/24 (2006.01) H02K 1/32 (2006.01) H02K 9/02 (2006.01) H02K 9/06 (2006.01)
Patent
CA 2010670
A dynamoelectric machine has a stator with a stator core and a plurality of spaced apart radially extending ventilation ducts. A rotor mounted for rotation within the stator has a shaft with a plurality of salient poles. Each salient pole has a winding on it and each pole with its winding constitutes a pole member. Adjacent pole members define between them an interpolar space. Cooling air enters each interpolar space from each end when the machine is operating, moves generally axially as portions of the air change direction to move radially outwards through the air gap separating the rotor and stator and then through the ventilation ducts. The air flow, in a radial outward direction, tends to be less at the ends of the rotor and through the ventilation ducts adjacent the ends of the stator. The invention places a baffle at each end of each interpolar space. The baffle is in a generally radial plane and has an outward edge adjacent the outer limit of the interpolar space as defined by the tips of the poles, and an inward edge spaced from the bottom of the interpolar space. The baffle improves the air flow radially outwards adjacent the ends of the rotor and the stator.
Dymond James H.
Saidi Nick Noorolah
Young John
Craig Wilson And Company
Dymond James H.
General Electric Canada Inc.
Saidi Nick Noorolah
Young John
LandOfFree
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