Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1979-07-18
1981-12-15
Skudy, R.
Electrical generator or motor structure
Dynamoelectric
Rotary
310 61, 310 62, 310269, H02K 900
Patent
active
043061656
ABSTRACT:
A cooling system for a rotary electric machine having a stator including a stator core and a stator frame for supporting the stator core and a rotor including a yoke, a plurality of salient magnetic poles mounted on the periphery of the yoke and shield plates bridging the tips of the adjacent magnetic poles wherein the cooling system comprises groups of air-discharging and air-charging ducts radially penetrating the stator core, each group of the ducts being axially aligned with a predetermined distance from each other and air-discharging windows formed in the shield plates at predetermined axial positions thereof, and the axial area of each group of the air-discharging ducts is larger than the axial area of the air-discharging window of the corresponding shield plate thereby increasing the flow rate of the cooling air through the rotary machine.
REFERENCES:
patent: 1030041 (1912-06-01), Williamson
patent: 2899573 (1959-08-01), Wesolowski
patent: 3106654 (1963-10-01), Wesolowski
patent: 3514647 (1970-05-01), Lipstein
patent: 3846651 (1974-11-01), Mishra
patent: 3932778 (1976-01-01), Watanabe
patent: 4182966 (1980-01-01), Mishra
Kitabayashi Yukio
Okuda Hironori
Takahashi Noriyoshi
Watanabe Masatoshi
Hitachi , Ltd.
Skudy R.
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