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HERMETICALLY SEALED DYNAMOELECTRIC MACHINE

  • US 3,675,056 A
  • Filed: 01/04/1971
  • Issued: 07/04/1972
  • Est. Priority Date: 01/04/1971
  • Status: Expired due to Term
First Claim
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1. In a dynamoelectric machine, the combination comprising a stator formed of a plurality of axially aligned magnetic laminations stacked to form a cylindrical bore for reception of a rotor therein, said laminations having a circular yoke and a plurality of teeth extending radially inward from said yoke to provide slots along the length of said stator for insertion of machine windings therein, each of said teeth exhibiting a gradually decreasing width with increased span from the stator yoke, and a triangularly shaped aperture situated entirely within each of said teeth at an attitude to provide a constant flux carrying area over the length of each of said teeth, the sides of said triangularly shaped apertures adjacent said slots being disposed parallel to the adjacent tapered sides of said tooth at an attitude to converge at the tooth face confronting said bore to produce a total flux carrying area within said tooth at any radial location along the struts formed between the aperture and said slots substantially equal to the flux carrying area of the tooth face confronting said cylindrical bore, and means for passing a fluid refrigerant through the triangularly shaped apertures in an axial direction.

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