Air-gap winding stator construction for dynamoelectric machine
First Claim
1. A stator module for a dynamoelectric machine comprising:
- an outer, metallic cylinder formed from a plurality of substantially sectorially shaped metallic laminations arranged in a plurality of layers;
an inner, nonmetallic cylinder formed from a plurality of substantially sectorially shaped non-metallic laminations having inwardly projecting teeth so as to define a plurality of slots along the inner circumference of the inner cylinder, said laminations also being arranged in a plurality of layers, said inner laminations being adhesively bonded to said outer laminations; and
wherein the radial dimensions of said metallic and non-metallic laminations vary over adjacent layers, sum of said radial dimensions being constant, so as to define overlapping areas between the metallic and nonmetallic laminations in said adjacent layers.
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Abstract
A stator for a dynamoelectric machine preferably comprises a stack of modular sections, each modular section comprising an outer metallic cylinder formed from a plurality of metallic laminations arranged in a plurality of layers. Furthermore, the stator module comprises an inner nonmetallic cylinder formed from nonmetallic laminations having inwardly projecting teeth so as to define a plurality of slots along the inner circumference of the modular sections, the nonmetallic laminations being adhesively bonded to the outer metallic laminations. The stator modules of the present invention may be incorporated either in a conventional air-gap winding generator or employed in a superconducting rotor generator exhibiting high magnetic flux in the air-gap region between the rotor and the stator.
83 Citations
19 Claims
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1. A stator module for a dynamoelectric machine comprising:
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an outer, metallic cylinder formed from a plurality of substantially sectorially shaped metallic laminations arranged in a plurality of layers; an inner, nonmetallic cylinder formed from a plurality of substantially sectorially shaped non-metallic laminations having inwardly projecting teeth so as to define a plurality of slots along the inner circumference of the inner cylinder, said laminations also being arranged in a plurality of layers, said inner laminations being adhesively bonded to said outer laminations; and wherein the radial dimensions of said metallic and non-metallic laminations vary over adjacent layers, sum of said radial dimensions being constant, so as to define overlapping areas between the metallic and nonmetallic laminations in said adjacent layers. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification