Patent US4636006A successfully refreshed from Google Patents.
US4021139A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas turbine guide vane
Assignee: Brown Boveri Sulzer Turbomaschinen AG
•
Filing: 1975-10-30
•
Granted: 1977-05-03
•
Expires: 1995-10-30
Abstract
Abstract The cooled vane includes an insert from which cooling air is dispersed over the inner wall of the vane to flow from the leading edge to the trailing edge via air channels between the jacket and insert and thence from the trailing edge via air channels to the leading edge and through outlets to flow over the suction side of the vane surface.
Inventors
- 👤 Clifford John Franklin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:56
CPC Classifications
F; F01; F01D; F01D5/00; F01D5/12; F01D5/14; F01D5/18; F01D5/187; F01D5/188; F01D5/189; F05; F05D; F05D2260/00; F05D2260/20; F05D2260/201
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
206 words
A gas-turbine guide vane comprising a jacket disposed on a longitudinal axis and defining a leading edge, a trailing edge, an internal wall defining a hollow cavity, a pressure side and a suction side; a hollow insert in said cavity disposed in spaced relation to said wall to define an air chamber therein and a turbulence space between said insert and said jacket at said leading edge; a partition extending between said insert and said wall parallel to said axis at said leading edge on one side of said turbulence space; a plurality of openings in said insert at said leading edge communicating said air chamber with said turbulence space; a plurality of projections on said wall extending from said turbulence space toward said trailing edge on said pressure side to define air flow channels and from said trailing edge towards said partition on said suction side to define air flow channels; a plurality of outlets in said trailing edge communicating with said channels on said pressure side to exhaust a portion of cooling air; and a plurality of outlets in said leading edge communicating with said channels on said suction side to exhaust the remainder of the cooling air over the exterior of said jacket.
Claim 2
Dependent Claim
206 words
A gas-turbine guide vane comprising a jacket disposed on a longitudinal axis and defining a leading edge, a trailing edge, an internal wall defining a hollow cavity, a pressure side and a suction side; a hollow insert in said cavity disposed in spaced relation to said wall to define an air chamber therein and a turbulence space between said insert and said jacket at said leading edge; a partition extending between said insert and said wall parallel to said axis at said leading edge on one side of said turbulence space; a plurality of openings in said insert at said leading edge communicating said air chamber with said turbulence space; a plurality of projections on said wall extending from said turbulence space toward said trailing edge on said pressure side to define air flow channels and from said trailing edge towards said partition on said suction side to define air flow channels; a plurality of outlets in said trailing edge communicating with said channels on said pressure side to exhaust a portion of cooling air; and a plurality of outlets in said leading edge communicating with said channels on said suction side to exhaust the remainder of the cooling air over the exterior of said jacket.
Claim 3
Dependent Claim
49 words
A gas turbine guide vane as set forth in claim 1 which further comprises a collection space for air between said insert and said jacket on the side of said partition wall opposite said turbulence space and in communication with said channels and said outlets on said suction side.
Claim 4
Dependent Claim
38 words
A gas turbine guide vane as set forth in claim 1 wherein said outlets in said trailing edge are sized to exhaust approximately fifty percent of the cooling air flow passing through said channels on said pressure side.
Claim 5
Dependent Claim
26 words
A gas turbine guide vane as set forth in claim 1 wherein said projections on said pressure side terminate at different distances from said trailing edge.
Claim 6
Dependent Claim
266 words
A gas-turbine guide vane comprising a jacket disposed on a longitudinal axis and defining a leading edge, a trailing edge, an internal wall defining a hollow cavity, a pressure side and a suction side; a hollow insert in said cavity disposed in spaced relation to said wall to define an air chamber therein and a turbulence space between said insert and said jacket at said leading edge; a partition extending between said insert and said wall parallel to said axis at said leading edge on one side of said turbulence space to block a flow of air from passing to said suction side of said jacket; a plurality of openings in said insert at said leading edge communicating said air chamber with said turbulence space; a plurality of projections on said wall extending from said turbulence space toward said trailing edge on said pressure side to define air flow channels and from said trailing edge towards said partition on said suction side to define air flow channels; a plurality of outlets in said trailing edge communicating with said channels on said pressure side to exhaust a portion of cooling air; and a plurality of outlets in said leading edge communicating with said channels on said suction side to exhaust the remainder of the cooling air over the exterior of said jacket whereby cooling air delivered to said cavity flows into said turbulence space and sequentially through said air flow channel on said pressure side to said trailing edge and thence through said air flow channels on said suction side to said outlets in said leading edge.
Claim 7
Dependent Claim
266 words
A gas-turbine guide vane comprising a jacket disposed on a longitudinal axis and defining a leading edge, a trailing edge, an internal wall defining a hollow cavity, a pressure side and a suction side; a hollow insert in said cavity disposed in spaced relation to said wall to define an air chamber therein and a turbulence space between said insert and said jacket at said leading edge; a partition extending between said insert and said wall parallel to said axis at said leading edge on one side of said turbulence space to block a flow of air from passing to said suction side of said jacket; a plurality of openings in said insert at said leading edge communicating said air chamber with said turbulence space; a plurality of projections on said wall extending from said turbulence space toward said trailing edge on said pressure side to define air flow channels and from said trailing edge towards said partition on said suction side to define air flow channels; a plurality of outlets in said trailing edge communicating with said channels on said pressure side to exhaust a portion of cooling air; and a plurality of outlets in said leading edge communicating with said channels on said suction side to exhaust the remainder of the cooling air over the exterior of said jacket whereby cooling air delivered to said cavity flows into said turbulence space and sequentially through said air flow channel on said pressure side to said trailing edge and thence through said air flow channels on said suction side to said outlets in said leading edge.
Claim 8
Dependent Claim
38 words
A gas turbine guide vane as set forth in claim 5 wherein said outlets in said trailing edge are sized to exhaust approximately fifty percent of the cooling air flow passing through said channels on said pressure side.
Claim 9
Dependent Claim
26 words
A gas turbine guide vane as set forth in claim 5 wherein said projections on said pressure side terminate at different distances from said trailing edge.
References Cited (Backward Citations)
US3032314A
Cited
US3475107A
Cited
US3574481A
Cited
US3560107A
Cited
US3567333A
Cited
US3809494A
Cited
US3799696A
Cited
US3930748A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-05-02 | 1980-11-01 | 1981-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-05-02 | 1984-11-01 | 1985-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-05-02 | 1988-11-01 | 1989-05-03 | $7700.00 | Window Closed / Lapsed |