Patent US6404782B1 successfully refreshed from Google Patents.
US3883263A
Expired / Lapsed
US
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Device for cooling rotor blades with solid profile of motor vehicle gas turbines
Assignee: AUSBURG NUREMBERG AG
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Filing: 1973-12-20
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Granted: 1975-05-13
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Expires: 1993-12-20
Abstract
Abstract A device for cooling the twisted rotor blades with solid profile of a motor vehicle gas turbines, according to which on or in the support for the guiding device preceding the rotor part, nozzles actuated by cooling air are so arranged that that part of the turbine rotor which is adjacent to the active blade profile is swept over by the cooling air. Also, the guiding device has that part thereof which overlaps the ends of the rotor blades provided with nozzle means acted upon by cooling air, said nozzle means being so arranged that the cooling air flows off in radial direction.
Inventors
- 👤 Horst Mai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:38
CPC Classifications
F; F01; F01D; F01D11/00; F01D11/08; F01D11/10; F01D5/00; F01D5/02; F01D5/08; F01D5/081
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
151 words
In combination with a gas turbine rotor of a motor vehicle having a hub and twisted peripheral rotor blades with solid profile, a guide wheel coaxially arranged with said rotor and including: a central section extending around said hub, a peripheral section extending around said rotor blades, and guide blades interconnecting said central section and said peripheral section, annular chamber means radially inwardly of said guide wheel blades and provided with first nozzle means directed anD open toward that portion of said turbine rotor which is near to and radially inwardly of said peripheral rotor blades, said annular chamber means being adapted to be connected to a source of cooling air, and second nozzle means provided in said peripheral section and directed at least approximately radially toward the peripheral portion of said peripheral rotor blades, said second nozzle means being adapted to be connected to a source of compressed cooling air.
Claim 2
Dependent Claim
151 words
In combination with a gas turbine rotor of a motor vehicle having a hub and twisted peripheral rotor blades with solid profile, a guide wheel coaxially arranged with said rotor and including: a central section extending around said hub, a peripheral section extending around said rotor blades, and guide blades interconnecting said central section and said peripheral section, annular chamber means radially inwardly of said guide wheel blades and provided with first nozzle means directed anD open toward that portion of said turbine rotor which is near to and radially inwardly of said peripheral rotor blades, said annular chamber means being adapted to be connected to a source of cooling air, and second nozzle means provided in said peripheral section and directed at least approximately radially toward the peripheral portion of said peripheral rotor blades, said second nozzle means being adapted to be connected to a source of compressed cooling air.
Claim 3
Dependent Claim
20 words
An arrangement in combination according to claim 1 in which said second nozzle means includes at least one annular slot.
References Cited (Backward Citations)
US3583824A
Cited
US3791758A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-05-12 | 1978-11-11 | 1979-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-12 | 1982-11-11 | 1983-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-12 | 1986-11-11 | 1987-05-13 | $7700.00 | Window Closed / Lapsed |