H - Electricity – 02 – K
Patent
H - Electricity
02
K
310/30
H02K 1/32 (2006.01) H02K 1/20 (2006.01) H02K 9/06 (2006.01) H02K 9/16 (2006.01)
Patent
CA 1121851
Case 2546 AIR COOLING ARRANGEMENT FOR A DISC MOTOR ABSTRACT OF THE DISCLOSURE An improved air cooling arrangement for an axial air gap dynamoelectric machine has a stator housing surrounding a discoidal rotor. On the inside of the housing, closely spaced from the sides and peripheral edge of the end head portion of the rotor, are a number of ribs. Thus, each rib has an axially extending or transverse portion and two side portions to provide vortical air flow and improve heat transfer from rotor to stator. A fan is mounted to the rotor and extends outwardly of the stator housing with the blades moving adjacent and outside the housing. A cover plate over the fan blades, fastened to the outer periphery of the housing, provides a plenum chamber in which the fan blades move. There is a generally centrally located opening in the cover plate to admit air, and the end portion of the stator housing has a plurality of axially directed air conducting passages spaced around the end portion and communicating with the plenum chamber through which the air passes when it leaves the plenum chamber.
331280
Canadian General Electric Company Limited
Eckersley Raymond A.
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