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Rotor with cooling manifolds

  • US 9,548,640 B2
  • Filed: 12/05/2013
  • Issued: 01/17/2017
  • Est. Priority Date: 12/05/2013
  • Status: Active Grant
First Claim
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1. A rotor comprising:

  • a plurality of axially extending slots disposed about a body of the rotor;

    a plurality of conductors radially stacked within each of the axially extending slots;

    an axially extending subslot disposed at a radially inward end of each of the axially extending slots;

    in each slot, a cooling path extending radially outward from the subslot, the cooling path comprising a first manifold and a second manifold, wherein each of the first and the second manifolds includes;

    an ingress passage extending outwardly in a substantially radial direction from the sub slot at a first axial position along the slot, wherein the ingress passage extends to a partial radial depth of the slot,an egress passage extending outwardly in a substantially radial direction from a partial radial depth of the slot to the radially outer surface of the rotor, the egress passage being disposed at a second axial position along the slot, axially distanced from the first axial position, anda plurality of axially extending passages in fluid connection at a first end with the ingress passage, and at a second end with the egress passage, wherein each of the plurality of axially extending passages is disposed at a different radial depth in the slot from each other axially extending passage, andwherein the first and the second manifolds are configured to form a nest of manifolds in which the plurality of axially extending passages of the first manifold are substantially parallel to, at a different radial depth from, and at least partially axially overlapping with the plurality of axially extending passages of the second manifold.

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