Patent DE469077C successfully refreshed from Google Patents.
Patent US5285123A successfully refreshed from Google Patents.
US5285123A
Expired / Lapsed
US
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Turbo-generator
Assignee: Doryokuro Kakunenryo Kaihatsu Jigyodan
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Filing: 1993-04-05
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Granted: 1994-02-08
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Expires: 2013-04-05
Abstract
Abstract A turbo-generator has a tapering cooling part positioned between a vapor turbine part and a generator part, and casings of these parts are combined together to form a sealed single-boundary structure. A turbine shaft in the vapor turbine part, a rotary shaft in the cooling part and a generator shaft in the generator part are combined unitarily and are supported by bearing parts in such a way that the unitary shaft does not pass from the boundary structure. The tapering cooling part has a smaller diameter at the side of the generator part, and the inner circumferential surface of the cooling part forms a labyrinth structure to separate the atmospheres of the vapor turbine part and the generator part.
Inventors
- 👤 Hajime Kataoka
- 👤 Kazuo Haga
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:37
CPC Classifications
F; F16; F16C; F16C32/00; F16C32/04; F16C32/0406; F16C32/044; F16C32/047; F01; F01D; F01D15/00; F01D15/10; F16C37/00; F16C37/005; H; H02; H02K; H02K5/00; H02K5/04; H02K5/12; H02K5/124; H02K7/00; H02K7/08; H02K7/09; H02K7/18; H02K7/1807; H02K7/1823; H02K9/00; H02K9/22; H02K9/225; F05; F05D; F05D2240/00; F05D2240/50; F05D2240/51; F05D2240/515; F05D2260/00; F05D2260/20; F05D2260/208; Y; Y02; Y02T; Y02T50/00; Y02T50/60
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
183 words
A turbo-generator comprising: a vapor turbine; a generator; a tapering cooling section interposed between said vapor turbine and said generator; said vapor turbine, said cooling section and said generator having casings integrated together to form a sealed single-boundary structure; said vapor turbine also having a turbine shaft, said cooling section also having a rotary shaft and said generator also having a generator shaft, said shafts being integral; bearing parts at ends of said boundary structure and supporting the integral shafts of said vapor turbine, said generator and said cooling section in such a way that the integral shafts do not pass from said single-boundary structure; said tapering cooling section having a smaller diameter at a part thereof adjacent said generator than at a part thereof adjacent said vapor turbine; said cooling section having a plurality of annular weirs at the inner circumferential surface of said casing thereof; and said rotary shaft of said cooling section having a plurality of annular projections at the outer circumferential surface thereof, said annular projections being positioned among said weirs so as to form a labyrinth structure therewith.
Claim 2
Dependent Claim
183 words
A turbo-generator comprising: a vapor turbine; a generator; a tapering cooling section interposed between said vapor turbine and said generator; said vapor turbine, said cooling section and said generator having casings integrated together to form a sealed single-boundary structure; said vapor turbine also having a turbine shaft, said cooling section also having a rotary shaft and said generator also having a generator shaft, said shafts being integral; bearing parts at ends of said boundary structure and supporting the integral shafts of said vapor turbine, said generator and said cooling section in such a way that the integral shafts do not pass from said single-boundary structure; said tapering cooling section having a smaller diameter at a part thereof adjacent said generator than at a part thereof adjacent said vapor turbine; said cooling section having a plurality of annular weirs at the inner circumferential surface of said casing thereof; and said rotary shaft of said cooling section having a plurality of annular projections at the outer circumferential surface thereof, said annular projections being positioned among said weirs so as to form a labyrinth structure therewith.
Claim 3
Dependent Claim
26 words
A turbo-generator according to claim 1, wherein said cooling section and said generator each have respective parts provided symmetrically on both sides of said vapor turbine.
Claim 4
Dependent Claim
24 words
A turbo-generator according to claim 1, and further comprising means for introducing a sealing gas into the interior of said casing of said generator.
Claim 5
Dependent Claim
14 words
A turbo-generator according to claim 1, wherein said bearing part comprises a magnetic bearing.
Claim 6
Dependent Claim
18 words
A turbo-generator according to claim 1, wherein a working fluid for said vapor turbine part is potassium vapor.
Claim 7
Dependent Claim
21 words
A turbo-generator according to claim 1, and further comprising heat pipes by which said cooling section and said generator are cooled.
Claim 8
Dependent Claim
18 words
A turbo-generator according to claim 1, and further comprising a permanent magnet rotor provided on said generator shaft.
Claim 9
Dependent Claim
24 words
A turbo-generator according to claim 1, and further comprising means for introducing a sealing gas into the interior of said casing of said generator.
Claim 10
Dependent Claim
14 words
A turbo-generator according to claim 2, wherein said bearing part comprises a magnetic bearing.
Claim 11
Dependent Claim
18 words
A turbo-generator according to claim 2, wherein a working fluid for said vapor turbine part is potassium vapor.
Claim 12
Dependent Claim
21 words
A turbo-generator according to claim 2, and further comprising heat pipes by which said cooling section and said generator are cooled.
Claim 13
Dependent Claim
18 words
A turbo-generator according to claim 2, and further comprising a permanent magnet rotor provided on said generator shaft.
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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) | 1997-02-07 | 1997-08-09 | 1998-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-02-07 | 2001-08-09 | 2002-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-02-07 | 2005-08-09 | 2006-02-08 | $7700.00 | Window Closed / Lapsed |