Patent US3569894A successfully refreshed from Google Patents.
Patent US4135855A successfully refreshed from Google Patents.
US4135855A
Expired / Lapsed
US
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Hollow cooled blade or vane for a gas turbine engine
Assignee: Rolls Royce PLC
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Filing: 1974-10-02
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Granted: 1979-01-23
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Expires: 1994-10-02
Abstract
Abstract A hollow cooled blade or vane for a gas turbine engine is provided with cooling on certain areas of its interior surface by an impingement plate which is supported from and sealed to the blade interior by a pair of ribs.
Inventors
- 👤 Peter G. Peill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:49
CPC Classifications
F; F01; F01D; F01D5/00; F01D5/12; F01D5/14; F01D5/18; F01D5/186; F01D5/187; F01D5/188
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
88 words
A hollow cooled blade or vane for a gas turbine engine comprising a skin having an interior surface on which are formed a pair of ribs, each rib having a groove therein, an apertured plate having edges engaged in the grooves of said ribs and extending between the ribs and spaced from the interior surface of the blade and sealed to the interior surface at the ribs, and cooling fluid supply means adapted to cause cooling fluid to flow through the apertures to impingement cool the interior surface.
Claim 2
Dependent Claim
88 words
A hollow cooled blade or vane for a gas turbine engine comprising a skin having an interior surface on which are formed a pair of ribs, each rib having a groove therein, an apertured plate having edges engaged in the grooves of said ribs and extending between the ribs and spaced from the interior surface of the blade and sealed to the interior surface at the ribs, and cooling fluid supply means adapted to cause cooling fluid to flow through the apertures to impingement cool the interior surface.
Claim 3
Dependent Claim
43 words
A hollow cooled blade or vane as claimed in claim 1 and in which film cooling holes are formed in the skin of the vane passing from the space between the plate and the interior surface of the exterior surface of the vane.
Claim 4
Dependent Claim
31 words
A hollow cooled blade or vane as claimed in claim 1 and in which there are two adjacent ribs provided with facing grooves, said plate being mounted in the facing grooves.
Claim 5
Dependent Claim
35 words
A hollow cooled blade or vane as claimed in claim 1 and in which one said rib is provided with two said grooves within which one edge of each of two said plates are mounted.
Claim 6
Dependent Claim
34 words
A hollow cooled blade or vane as claimed in claim 1 and in which more than one said pair of ribs and plate are provided to enable cooling in more than one specific locality.
Claim 7
Dependent Claim
26 words
A hollow cooled blade or vane as claimed in claim 1 and in which said ribs extend in a spanwise direction of the blade or vane.
Claim 8
Dependent Claim
30 words
A hollow cooled blade or vane as claimed in claim 1 and in which further sealing means are provided to seal the ends of the plate to the interior surface.
Claim 9
Dependent Claim
34 words
A hollow cooled blade or vane as claimed in claim 1 and in which further cooling means are provided to cool those parts of the blade or vane not cooled through the apertured plates.
References Cited (Backward Citations)
US3528751A
Cited
US3799696A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-01-22 | 1982-07-24 | 1983-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-01-22 | 1986-07-24 | 1987-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-01-22 | 1990-07-24 | 1991-01-23 | $7700.00 | Window Closed / Lapsed |