US3983427A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Superconducting winding with grooved spacing elements
Assignee: Westinghouse Electric Corp
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Filing: 1975-05-14
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Granted: 1976-09-28
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Expires: 1995-05-14
Abstract
Abstract A spacing element is disposed between adjacent conductor layers of a coil to permit passage of a cooling fluid therethrough. The spacing element comprises rib portions which engage and space apart confronting surfaces of conductor turns of next adjacent layers and non-contacting portions which in combination with the confronting surfaces of the conductors define a plurality of channels to permit passage of the cooling fluid through the coil. Each channel has an inlet port to receive the cooling fluid and an outlet port to discharge the cooling fluid after it has passed through the coil.
Inventors
- 👤 Asim Ulke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:37
CPC Classifications
H; H02; H02K; H02K3/00; H02K3/04; H02K3/24; H02K55/00; H02K55/02; H02K55/04; Y; Y02; Y02E; Y02E40/00; Y02E40/60; Y10; Y10S; Y10S505/00; Y10S505/825; Y10S505/876; Y10S505/877; Y10S505/878
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
186 words
In combination, a rotor member of a dynamoelectric machine, said rotor member including a core having slots in which a number of conductor turns are convolutely wound to form a plurality of coils, said coils being electrically connected one to another to constitute a rotor winding, each of said coils having a plurality of conductor layers; and, a spacing element disposed between adjacent conductor layers in each coil and extending therethrough in a convolute relation therewith, said spacing element comprising: rib portions which engage and space apart confronting surfaces of conductor turns of adjacent conductor layers; and, non-contacting rib portions disposed intermediate said contacting rib portions which in combination with said contacting rib portions and the confronting surfaces of said conductors define a plurality of channels to permit passage of a cooling fluid through said coils, said channels being separated one from another by said non-contacting rib portions, each said channel providing a continuous, discrete flow path through said channel and having an inlet port to receive the cooling fluid and an outlet port to discharge the cooling fluid after it has passed through said coil.
Claim 2
Dependent Claim
186 words
In combination, a rotor member of a dynamoelectric machine, said rotor member including a core having slots in which a number of conductor turns are convolutely wound to form a plurality of coils, said coils being electrically connected one to another to constitute a rotor winding, each of said coils having a plurality of conductor layers; and, a spacing element disposed between adjacent conductor layers in each coil and extending therethrough in a convolute relation therewith, said spacing element comprising: rib portions which engage and space apart confronting surfaces of conductor turns of adjacent conductor layers; and, non-contacting rib portions disposed intermediate said contacting rib portions which in combination with said contacting rib portions and the confronting surfaces of said conductors define a plurality of channels to permit passage of a cooling fluid through said coils, said channels being separated one from another by said non-contacting rib portions, each said channel providing a continuous, discrete flow path through said channel and having an inlet port to receive the cooling fluid and an outlet port to discharge the cooling fluid after it has passed through said coil.
Claim 3
Dependent Claim
30 words
A winding structure as defined in claim 1 in which at least one of said spacing elements is disposed in convolute relation with each pair of next adjacent winding layers.
Claim 4
Dependent Claim
47 words
A winding structure as defined in claim 1 in which at least one of said spacing elements is disposed in convolute relation with selected ones of next adjacent winding layers, there being at least a plurality of winding layers disposed intermediate of each pair of spacing elements.
Claim 5
Dependent Claim
34 words
A winding structure as defined in claim 1 including an input manifold associated with each coil, said manifold providing fluid communication between the inlet ports of said channel and a source of cooling fluid.
Claim 6
Dependent Claim
75 words
A winding structure as defined in claim 4 wherein there are N of said coils, N being a positive integer greater than 1, including means coupling the output ports of the channels of the nth coil in fluid communication with the input manifold associated with the (n+1) st coil, n being a positive integer less than N, thereby permitting the flow of cooling fluid through each of said coils successively in a serial flow arrangement.
Claim 7
Dependent Claim
78 words
A winding structure as defined in claim 1 in which each of said coils has a principal axis of symmetry about which said winding layers and spacing elements are symmetrically disposed, each of said spacing elements being bifurcated along said axis thereby establishing a substantially equal flow path through said coil on either side of said axis of symmetry, there being regions of discontinuity between the end portions of said bifurcated spacing elements along said axis of symmetry.
Claim 8
Dependent Claim
55 words
A winding structure as defined in claim 1 in which said convoluted conductor layers extend laterally with respect to said core said spacing elements being generally circumferentially coextensive with said winding layers, the lateral cross-sectional area of said spacing elements being small as compared with the lateral cross-sectional area of the next adjacent conductor layer.
Claim 9
Dependent Claim
61 words
A winding structure as defined in claim 7 in which said conductors are generally rectangular in cross section and the rib portions and channels of said spacing elements are also generally rectangular in cross section, there being at least one such channel defined by said non-contacting rib portions of said spacing element and the confronting surface of each next adjacent conductor.
Claim 10
Dependent Claim
32 words
The winding structure of claim 8 in which said contacting rib portions are formed intermediate of next adjacent channels to provide at least one discrete cooling channel for each next adjacent conductor.
Claim 11
Dependent Claim
54 words
The winding structure of claim 8, each channel having a lateral extent, in cross section, which is small in relation to its transverse extent, the confronting surface area of said conductor which in combination defines said channel being large in relation to the surface area of said conductor contacted by said contacting rib portions.
Claim 12
Dependent Claim
24 words
The winding structure of claim 1 in which said contacting rib portions are secured to said winding layers by means of a bonding material.
Claim 13
Dependent Claim
50 words
The winding structure defined in claim 1 wherein said conductors are stabilized superconductive wires, each of said wires comprising: a plurality of filaments of superconductive material formed into a strand; a sheath of normally conductive material encasing said strand; and a layer of non-conductive materials surrounding said normally conductive material.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-09-28 | 1980-03-29 | 1980-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-09-28 | 1984-03-29 | 1984-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-09-28 | 1988-03-29 | 1988-09-28 | $7700.00 | Window Closed / Lapsed |