US6762517B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
High temperature super-conducting rotor having a vacuum vessel and electromagnetic shield and an assembly method
Assignee: General Electric Co
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Filing: 2003-03-25
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Granted: 2004-07-13
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Expires: 2023-03-25
Abstract
Abstract A rotor is disclosed for a super-conducting synchronous machine including: a rotor core; a super-conducting coil extending around at least a portion of the rotor core, said coil having coil side sections on opposite sides of said rotor core; a vacuum housing covering at least one of said coil side sections, and a conductive shield over said vacuum housing and coil side sections.
Inventors
- 👤 Yu Wang
- 👤 Konrad Roman Weeber
- 👤 Kiruba Sivasubramaniam
- 👤 Robert John Nygard
- 👤 Xianrui Huang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:14
CPC Classifications
H; H02; H02K; H02K55/00; H02K55/02; H02K55/04; H02K3/00; H02K3/46; H02K3/04; H02K3/24; Y; Y02; Y02E; Y02E40/00; Y02E40/60; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49009; Y10T29/49012
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
118 words
A method for providing a vacuum around a super-conducting coil winding on a rotor core of a synchronous machine comprising the steps of: a. assembling the coil winding and rotor core; wherein the coil winding has a coil side section extending radially outward of the core; b. attaching end shafts coaxially to said core; c. straddling a vacuum housing over the coil side section and sealing the housing to said rotor core, wherein the coil side section is enclosed on three sides by vacuum housing and a fourth side of the coil side section is proximate to the core, and d. sealing the vacuum housing to said end shafts to form a vacuum region around said coil winding.
Claim 2
Independent Claim
118 words
A method for providing a vacuum around a super-conducting coil winding on a rotor core of a synchronous machine comprising the steps of: a. assembling the coil winding and rotor core; wherein the coil winding has a coil side section extending radially outward of the core; b. attaching end shafts coaxially to said core; c. straddling a vacuum housing over the coil side section and sealing the housing to said rotor core, wherein the coil side section is enclosed on three sides by vacuum housing and a fourth side of the coil side section is proximate to the core, and d. sealing the vacuum housing to said end shafts to form a vacuum region around said coil winding.
Claim 3
Dependent Claim
18 words
A method as in claim 1 further comprising the step of placing a conductive shield over said coil.
Claim 4
Dependent Claim
37 words
A method as in claim 1 wherein a slot is formed at each joint between an end shaft, the slot receives an end section of the coil winding and the vacuum housing is sealed to said slot.
Claim 5
Dependent Claim
16 words
A method as in claim 1 wherein a cylindrical shield is applied over said rotor core.
Claim 6
Dependent Claim
22 words
A method as in claim 1 wherein braces placed adjacent said vacuum housing and said rotor core to support a conductive shield.
Claim 7
Dependent Claim
40 words
A method as in claim 1 wherein an arced strip is applied over said coil side section, and said strip extends along said core between said end shafts, and said strip extends only partially around a circumference of said core.
Claim 8
Dependent Claim
26 words
A method as in claim 6 wherein said arced strip and a second arced strip are applied to each cover one of said coil side sections.
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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) | 2007-07-13 | 2008-01-12 | 2008-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2011-07-13 | 2012-01-12 | 2012-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2015-07-13 | 2016-01-12 | 2016-07-13 | $7700.00 | Window Closed / Lapsed |