Rotor with cooling manifolds
First Claim
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.
2 Assignments
0 Petitions
Accused Products
Abstract
A rotor is disclosed, which includes a plurality of axially extending slots disposed about the rotor; a plurality of conductors radially stacked within each of the axial slots; and an axially extending subslot at a radially inward end of each of the slots. In each slot, a cooling path is provided, extending radially outward from the subslot. The cooling path includes at least one manifold, each manifold including at least one ingress passage, at least one egress passage axially distanced from the ingress passage, and a plurality of axially extending passages in fluid connection at a first end with one of the at least one ingress passages, and at a second end with one of the at least one egress passages. Each of the plurality of axially extending passages is disposed at a different radial depth in the slot from each other axially extending passage.
22 Citations
20 Claims
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1. A rotor comprising:
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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, and a 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, and wherein 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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A rotor comprising:
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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; and in each slot, a cooling path extending radially outward from the subslot through the plurality of conductors, the cooling path comprising a plurality of nests of manifolds, wherein each manifold in each nest of manifolds includes; an ingress passage extending radially outwardly from the subslot 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 radially outwardly 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, and a 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, wherein within each nest of manifolds, the plurality of axially extending passages of a first manifold in the nest of manifolds are substantially parallel to, and at a different radial depth from, the plurality of axially extending passages of a second manifold. - View Dependent Claims (16, 17)
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18. A rotor comprising:
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a plurality of axially extending slots disposed about a body of the rotor; a plurality of conductors radially stacked within each of the axial slots; insulation disposed between each of the conductors; and 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 at least one manifold, wherein each manifold includes; at least one ingress passage extending outwardly in a substantially radial direction from the subslot at a first axial position along the slot, wherein the at least one ingress passage extends to a partial radial depth of the slot and comprises holes punched in the conductors and the insulation disposed between the conductors, at least one 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 at least one egress passage being disposed at a second axial position along the slot, axially distanced from the first axial position, and comprising holes punched in the conductors and the insulation disposed between the conductors, and a plurality of axially extending passages in fluid connection at a first end with one of the at least one ingress passages, and at a second end with one of the at least one egress passages, 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, wherein the holes in the insulation are substantially round and substantially centered at a mid-plane of the slot, and the holes in the conductors are elongated, and relative to an axial position of the holes in the insulation, the elongated holes in the conductors extend in alternating axial directions from the axial position of the holes in the insulation, wherein each of the axially extending passages further comprise a serpentine passage including elongated holes in adjacent stacked conductors, wherein the elongated holes in adjacent stacked conductors are axially staggered such that the elongated holes in adjacent stacked conductors axially overlap at each end, and wherein the elongated holes in adjacent stacked conductors are fluidly connected to one another by a hole in the interposed insulation that is aligned with the axial overlap of the elongated holes. - View Dependent Claims (19, 20)
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Specification