Reverse flow ventilation system with stator core center discharg

Details Reverse flow ventilation system with stator core center discharg Reverse flow ventilation system with stator core center discharg

1994-06-16

1997-07-29

Laballe, Clayton E.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 59, H02K 900, H02K 912

Patent

active

056524692

ABSTRACT:
A rotating electrical machine with a reverse flow ventilation system is constructed with one or more discharge ducts at the center of the stator core to reduce the air gap pressure and promote more uniform cooling. In a second embodiment, discharge ducts are provided axially displaced from the center line of the core. In another embodiment, end region cooling of the conductor bars is enhanced by a series-parallel flow path constructed with the use of baffles and an apertured plate. In a final embodiment, both stator core center discharge ducts and series-parallel flow end region cooling are incorporated in the same machine.

REFERENCES:
patent: 1196345 (1916-08-01), Field
patent: 1522027 (1925-01-01), Parsons et al.
patent: 2887593 (1959-05-01), Weidemann
patent: 3497737 (1970-02-01), Philofsky
patent: 3675056 (1972-07-01), Lenz
patent: 3739208 (1973-06-01), Shartrand
patent: 4442371 (1984-04-01), Utsunomiya et al.
patent: 4465947 (1984-08-01), Armor

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