US4172361A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas turbine stator structure
Assignee: Individual
•
Filing: 1977-09-20
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Granted: 1979-10-30
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Expires: 1997-09-20
Abstract
Abstract In an automotive power plant, where the power turbine will repeatedly be stalled while different amounts of gas pass its stationary rotor, detrimental conditions at the outlet stator are avoided by designing the individual guide vanes so the leading edges are inclined in the direction of flow by an amount of 20°-60° with respect to a radial plane normal to the power turbine rotor axis. The inclination may be selected so it runs substantially straight from the radially inward end of the vane to its tip, or from the radially inward end as well as from the top to provide a notched, or U-shaped profile.
Inventors
- 👤 Sven-Olof Kronogard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 04:37
CPC Classifications
F; F01; F01D; F01D5/00; F01D5/12; F01D5/14; F01D5/141; F01D17/00; F01D17/10; F01D17/12; F01D17/14; F01D17/16; F01D17/162
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
122 words
An automotive gas turbine plant comprising at least one power turbine rotor and a gazifier portion operable independently thereof, a stator structure comprising a number of guide vanes downstream of said at least one turbine rotor, means for mounting said vanes in a substantially radial position, each of said guide vanes having a leading edge being inclined in the direction of flow of gases by an amount of 20°-60° with respect to a radial plane being normal to the power turbine rotor axis, and wherein, the leading edge of each guide vane is inclined from the radially inward part of the vane, as well as from the outward part of the vane to provide a substantially concave profile at the leading edge.
Claim 2
Dependent Claim
122 words
An automotive gas turbine plant comprising at least one power turbine rotor and a gazifier portion operable independently thereof, a stator structure comprising a number of guide vanes downstream of said at least one turbine rotor, means for mounting said vanes in a substantially radial position, each of said guide vanes having a leading edge being inclined in the direction of flow of gases by an amount of 20°-60° with respect to a radial plane being normal to the power turbine rotor axis, and wherein, the leading edge of each guide vane is inclined from the radially inward part of the vane, as well as from the outward part of the vane to provide a substantially concave profile at the leading edge.
References Cited (Backward Citations)
FR823441A
Cited
US3498057A
Cited
DE2158578A1
Cited
US3745629A
Cited
FR2294328A1
Cited
US4053256A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-10-29 | 1983-04-30 | 1983-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-10-29 | 1987-04-30 | 1987-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-10-29 | 1991-04-30 | 1991-10-30 | $7700.00 | Window Closed / Lapsed |