US5285123A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Turbo-generator
Assignee: Doryokuro Kakunenryo Kaihatsu Jigyodan
•
Filing: 1993-04-05
•
Granted: 1994-02-08
•
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 14:23
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.
References Cited (Backward Citations)
US1960744A
Cited
US2707244A
Cited
US3210553A
Cited
DE2158456A1
Cited
US4002023A
Cited
FR2310010A1
Cited
US4069673A
Cited
US4295067A
Cited
US4392063A
Cited
US4638173A
Cited
US5126612A
Cited
SU1575270A1
Cited
JPH02299439A
Cited
US5021697A
Cited
US5083040A
Cited
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 |