Patent US3586459A successfully refreshed from Google Patents.
US3586459A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multistage gas turbine for conversion from a single-shaft to a two-shaft turbine
Assignee: Sulzer AG
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Filing: 1969-04-30
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Granted: 1971-06-22
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Expires: 1989-04-30
Abstract
Abstract Various basic components of the turbine are made in standardized manners so as to be converted from a single-shaft turbine to a two-shaft turbine and vice versa. The rotor discs are made to be incorporated as a last stage in a compressor turbine or incorporated in the useful power turbine when the second shaft is added.
Inventors
- 👤 Ferdinand Zerlauth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:34
CPC Classifications
F; F02; F02C; F02C7/00; F02C7/20; F01; F01D; F01D5/00; F01D5/02; F01D5/06; F01D9/00; F01D9/02; F01D9/04; F01D9/041; F01D9/042; F02C3/00; F02C3/04; F02C3/10; Y; Y10; Y10S; Y10S415/00; Y10S415/912
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
246 words
A multistage gas turbine plant comprising a drive turbine having a drive turbine shaft journal and a first plurality of rotor discs for carrying blades mounted in said drive turbine upstream of said drive turbine shaft journal; a power turbine having a power turbine shaft journal coaxially spaced downstream from and of less length than said drive turbine shaft journal, said power turbine journal being of similar construction to said drive turbine shaft journal for mounting in said drive turbine in place of said drive turbine shaft journal; and a second plurality of rotor discs carrying blades mounted in said power turbine downstream of and adjacent to said power turbine shaft journal, each disc of said second plurality of rotor discs being of similar construction to said first plurality of rotor discs for mounting in said drive turbine between said first plurality of rotor discs and said power turbine shaft journal therein; A first bearing housing rotatably supporting said drive turbine shaft journal therein; and a second bearing housing rotatably supporting said power turbine shaft journal therein, said second bearing housing being of similar construction to said first bearing housing and means whereby upon mounting of said power turbine shaft journal in place of said drive turbine shaft journal with said second plurality of rotor discs between said first plurality of rotor discs and said first bearing housing rotatably mounting said power turbine shaft journal therein, the turbine plant is converted to a single shaft turbine.
Claim 2
Dependent Claim
246 words
A multistage gas turbine plant comprising a drive turbine having a drive turbine shaft journal and a first plurality of rotor discs for carrying blades mounted in said drive turbine upstream of said drive turbine shaft journal; a power turbine having a power turbine shaft journal coaxially spaced downstream from and of less length than said drive turbine shaft journal, said power turbine journal being of similar construction to said drive turbine shaft journal for mounting in said drive turbine in place of said drive turbine shaft journal; and a second plurality of rotor discs carrying blades mounted in said power turbine downstream of and adjacent to said power turbine shaft journal, each disc of said second plurality of rotor discs being of similar construction to said first plurality of rotor discs for mounting in said drive turbine between said first plurality of rotor discs and said power turbine shaft journal therein; A first bearing housing rotatably supporting said drive turbine shaft journal therein; and a second bearing housing rotatably supporting said power turbine shaft journal therein, said second bearing housing being of similar construction to said first bearing housing and means whereby upon mounting of said power turbine shaft journal in place of said drive turbine shaft journal with said second plurality of rotor discs between said first plurality of rotor discs and said first bearing housing rotatably mounting said power turbine shaft journal therein, the turbine plant is converted to a single shaft turbine.
Claim 3
Dependent Claim
30 words
A multistage gas turbine plant as set forth in claim 1 which further comprises a central housing disposed between said bearing housings with said bearing housings in symmetric relation therewith.
Claim 4
Dependent Claim
37 words
A multistage gas turbine plant as set forth in claim 1 which further comprises an adapter piece in bridging relation between the last rotor disc of said first plurality of rotor discs and said first bEaring housing.
Claim 5
Dependent Claim
73 words
A multistage gas turbine plant as set forth in claim 1 which further comprises a compressor connected to said drive turbine shaft journal for rotation therewith, a rotor bearing rotatably mounting said compressor and a shaft bearing rotatably supporting said drive turbine shaft journal in said first bearing housing and being sized to rotatably support said power turbine shaft journal therein, said rotor bearing and shaft bearing being spaced apart a fixed distance.
Claim 6
Dependent Claim
46 words
A multistage gas turbine plant as set forth in claim 1 which further comprises a guide vane carrier surrounding said first plurality of rotor discs and an elongated extension part mounted on the downstream end of said carrier to surround said second plurality of rotor discs.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-21 | 1974-12-21 | 1975-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-21 | 1978-12-21 | 1979-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-21 | 1982-12-21 | 1983-06-22 | $7700.00 | Window Closed / Lapsed |