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US 4,994,700 AGranted
Dynamoelectric machine oil-cooled stator winding
AssigneeSundstrand Corporation
InventorsMadan L. Bansal, Barry J. Parker
Life of this patent
Estimating the term…
Abstract
The problem of stator cooling in a dynamoelectric machine is resolved using manufacturing spaces (32) within stator slots (20) for flow of oil coolant. In order to secure stator winding conductors (30) within the slots, a spring wedge (36) provides a biasing force for biasing the conductors against movements within the slots.
Claims12
A dynamoelectric machine comprising:
- a housing;
- an elongate cylindrical stator within said housing, and stator having a plurality of longitudinally extending, angularly spaced slots;
- a stator coil comprising an electrical winding having plural conductor portions wound in each said stator slot, whereby said conductor portions only partially fill said slots to provide longitudinally extending spaces along each conductor portion and between adjacent conductor portions in each of said slots;
- elastic means for biasing said conductor portions against movement in each of said slots;
- and
- means for providing liquid coolant to said stator so that the coolant flows through the spaces in said slots to provide direct cooling to said coil.
3 more elements
A stator cooled dynamoelectric machine comprising:
- a housing;
- an elongate cylindrical stator within said housing and having a central rotor receiving bore, said stator having a plurality of longitudinally extending, angularly spaced slots opening radially inwardly to said bore;
- a stator can sealing said bore to close off the radially inward openings from said slots;
- a stator coil comprising an electrical winding having plural conductor portions wound in each said stator slot, whereby said conductor portions only partially fill said slots to provide longitudinally extending spaces surrounding the conductor along each conductor portion and between adjacent conductor portions in each of said slots;
- elastic means for biasing said conductor portions against movement in each of said slots;
- and
- means for providing liquid coolant to said stator so that the coolant flows through the spaces in said slots to provide direct cooling to said coil.
4 more elements
Dependencies are inferred from the claim text.