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Stator cooling assembly

  • US 5,731,643 A
  • Filed: 05/02/1996
  • Issued: 03/24/1998
  • Est. Priority Date: 05/02/1996
  • Status: Expired due to Term
First Claim
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1. An induction motor comprising:

  • a stator defining stator inner and outer diameters extending about a longitudinal axis, said stator including a plurality of windings extending longitudinally along the longitudinal axis and circumferentially between said stator inner diameter and said stator outer diameter and passing an electric current therethrough to create a magnetic field, said windings having end turns extending around said stator inner diameter on each end of said stator;

    a rotor extending along the longitudinal axis having a rotor outer diameter less than said stator inner diameter, said rotor being rotatable about the longitudinal axis relative to said stator in response to the magnetic field; and

    a stator thermal exchanging fluid circuit extending both through and about said stator along the longitudinal axis, said stator thermal exchanging fluid circuit having a plurality of first conduits extending around said stator inner diameter adjacent said windings and a plurality of second conduits wrapped circumferentially around each end of said stator within said end turns, whereby said stator thermal exchanging fluid circuit exchanges energy with said stator.

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