Tooth tip for a high speed generator
AssigneeSolar Turbines Incorporated
InventorsJohn R. Lindbery, Kourosh Mehrayin
Life of this patent
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Abstract
Tooth tips, which fit over teeth and distal ends of fingers formed between slots in laminated disks making up a portion of a stator in a generator, facilitate slipping stator windings into the slots from a central opening in the laminated disks; cooperate with wedges to affix stator windings in the slots; and provide a slot gap between adjacent tooth tips, which is substantially smaller than the width of the slots, to reduce slot harmonics and improve performance of the generator.
Claims9
A stack of laminated disks forming a portion of a stator for positioning stator windings in a generator, each disk comprising a central opening and a circular array of slots extending outwardly from said central opening forming a circular array of fingers;
- each finger having a notch disposed on each side thereof forming a tooth on opposite sides of each finger adjacent distal end thereof;
- a tooth tip generally formed in the shape of an equal lateral triangle with an apex portion of said triangle being cut away to form an opening registering with the distal end of each finger, fitting over said teeth and being held in place by said teeth, the base portion of said triangular tooth tips being curved forming a circular opening the points of the base angles of said triangle being rounded off forming a gap between adjacent tooth tips, which is substantially smaller than the width of said slots;
- said slots being aligned in said stack of laminated disks forming elongated slots for receiving said stator windings;
- and
- a wedge having a generally trapezoidal shape being disposed in each of said elongated slots between said stator windings and said tooth tips and cooperating with said tooth tips to affix said stator windings in said elongated slots reducing slot harmonics and improving performance of the generator.
Dependencies are inferred from the claim text.