Patent FR804958A successfully refreshed from Google Patents.
US3972181A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Turbine cooling air regulation
Assignee: RTX Corp
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Filing: 1974-03-08
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Granted: 1976-08-03
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Expires: 1994-03-08
Abstract
Abstract Turbine cooling air regulation is obtained by directing cooling air through turbine cooling valve means to manifold means located internally of the roots of blades mounted on a turbine rotor disk. The manifold means has sealing engagement with the rotor disk and directs air from within, through passages to the interior of the blade where it passes through openings on the surface of the blade. The cooling system can include a plurality of turbine cooling valves which can be operated in unison, or independently actuated and scheduled.
Inventors
- 👤 Kenny M. Swayne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:53
CPC Classifications
F; F01; F01D; F01D9/00; F01D9/02; F01D9/04; F01D9/041; F01D11/00; F01D11/001; F01D5/00; F01D5/12; F01D5/14; F01D5/18
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
262 words
In a gas turbine engine having a compressor, a combustion section, and a turbine section, said turbine section having a turbine rotor mounted for rotation with turbine blades mounted therearound, a cooling manifold being located rearwardly of said turbine rotor and inwardly of said turbine blades, turbine vanes located in said turbine section rearwardly of said turbine blades, said cooling manifold having first opening means at its outer periphery, said turbine rotor having second opening means connected to the interior of said blades, said outer periphery of said cooling manifold having sealing cooperation around its first opening means with the second opening means of said turbine rotor, said first opening means and said second opening means being radially aligned, a plurality of said turbine blades having openings therein connecting the interior of said blades to the exterior thereof, a turbine cooling valve means positioned rearwardly of said cooling manifold and radially inwardly of said turbine vanes to direct cooling fluid to said cooling manifold, a supply of cooling fluid, a first manifold means located radially inwardly from the turbine vanes, a second manifold means located around the turbine vanes, a plurality of said turbine vanes being hollow for connecting said second manifold means to said first manifold means, means for actuating said turbine cooling valve means, said actuating means including an actuating rod extending from said turbine cooling valve means to the exterior of said turbine section, first conduit means connecting said supply to said second manifold means, second conduit means connecting said first manifold means to said turbine cooling valve means.
Claim 2
Dependent Claim
262 words
In a gas turbine engine having a compressor, a combustion section, and a turbine section, said turbine section having a turbine rotor mounted for rotation with turbine blades mounted therearound, a cooling manifold being located rearwardly of said turbine rotor and inwardly of said turbine blades, turbine vanes located in said turbine section rearwardly of said turbine blades, said cooling manifold having first opening means at its outer periphery, said turbine rotor having second opening means connected to the interior of said blades, said outer periphery of said cooling manifold having sealing cooperation around its first opening means with the second opening means of said turbine rotor, said first opening means and said second opening means being radially aligned, a plurality of said turbine blades having openings therein connecting the interior of said blades to the exterior thereof, a turbine cooling valve means positioned rearwardly of said cooling manifold and radially inwardly of said turbine vanes to direct cooling fluid to said cooling manifold, a supply of cooling fluid, a first manifold means located radially inwardly from the turbine vanes, a second manifold means located around the turbine vanes, a plurality of said turbine vanes being hollow for connecting said second manifold means to said first manifold means, means for actuating said turbine cooling valve means, said actuating means including an actuating rod extending from said turbine cooling valve means to the exterior of said turbine section, first conduit means connecting said supply to said second manifold means, second conduit means connecting said first manifold means to said turbine cooling valve means.
Claim 3
Dependent Claim
49 words
A combination as set forth in claim 1 wherein the first opening means of said cooling manifold is an annular opening formed on the outer periphery of the cooling manifold, each outer edge of the annular opening being located the same distance from the centerline of the turbine rotor.
Claim 4
Dependent Claim
70 words
A combination as set forth in claim 1 wherein said turbine blades are divided by a partition forming a forward compartment and a rearward compartment, the second opening means of said turbine rotor being connected to the rearward compartment, said turbine rotor having a third opening means connecting the area forward of the disk to the forward compartment, means for continuously supplying a cooling fluid to the third opening means.
Claim 5
Dependent Claim
143 words
A combination as set forth in claim 1 wherein a second turbine rotor having second turbine blades mounted therearound is mounted for rotation behind said turbine cooling valve means, a second cooling manifold being located forwardly of said second turbine rotor and inwardly of said second turbine blades, said second cooling manifold having third opening means at its outer periphery, said second turbine rotor having fourth opening means connected to the interior of said second blades, said outer periphery of said second cooling manifold having sealing cooperation around its third opening means with the fourth opening means of said second turbine rotor, a plurality of said second turbine blades having openings therein connecting the interior of said second blades to the exterior thereof, said turbine cooling valve means positioned forwardly of said second cooling manifold directing cooling fluid to said second cooling manifold.
Claim 6
Dependent Claim
94 words
A combination as set forth in claim 1 wherein said second conduit means comprises an annular manifold located radially inwardly from said first manifold means, said turbine cooling valve means comprises a housing extending inwardly from the inner surface of the annular manifold, said housing having an inner bore, said housing having an opening for cooling fluid flow entering said inner bore, duct means connecting said opening to said cooling manifold, a valving member slideable within said bore to open and close the bore opening, said actuating rod being connected to said valving member.
Claim 7
Dependent Claim
57 words
A combination as set forth in claim 5 wherein said bore has a second opening in said housing to permit air to enter the cavity behind the turbine rotor, said valving member closing said second opening when said cooling fluid flow opening is open and opening said second opening when said cooling fluid flow opening is closed.
Claim 8
Dependent Claim
65 words
A combination as set forth in claim 1 wherein a plurality of turbine cooling valve means are positioned rearwardly of said cooling manifold, said valve means being circumferentially spaced radially inwardly of said second conduit means, each turbine cooling valve means having an actuating rod, said actuating rods extending to the exterior of said turbine section where they can be actuated in unison or individually.
Claim 9
Dependent Claim
259 words
In a gas turbine engine having a compressor, a combustion section, and a turbine section, said turbine section having two turbine rotors mounted for rotation with turbine blades mounted therearound, a cooling manifold being located between said turbine rotors and inwardly of said turbine blades, turbine vanes located in said turbine section between said turbine blades of said two rotors, said cooling manifold having first opening means at its outer periphery, one of said turbine rotors having second opening means connected to the interior of said blades, said outer periphery of said cooling manifold having sealing cooperation around its first opening means with the second opening means of said one turbine rotor, a plurality of said turbine blades on said one turbine rotor having openings therein connecting the interior of said blades to the exterior thereof, a turbine cooling valve means positioned rearwardly of said cooling manifold and radially inwardly of said turbine vanes to direct cooling fluid to said cooling manifold, a supply of cooling fluid, means for directing said cooling fluid to said cooling valve means, first sealing means sealing each of said turbine rotors with an annular sealing member connected to the inner end of said turbine vanes, said turbine cooling valve means comprising a housing, said housing having an inner bore, said housing having an opening for cooling fluid flow entering said inner bore, duct means connecting said opening to said cooling manifold, a valving member slidable within said bore to open and close the bore opening, actuating means being connected to said valving member.
Claim 10
Dependent Claim
259 words
In a gas turbine engine having a compressor, a combustion section, and a turbine section, said turbine section having two turbine rotors mounted for rotation with turbine blades mounted therearound, a cooling manifold being located between said turbine rotors and inwardly of said turbine blades, turbine vanes located in said turbine section between said turbine blades of said two rotors, said cooling manifold having first opening means at its outer periphery, one of said turbine rotors having second opening means connected to the interior of said blades, said outer periphery of said cooling manifold having sealing cooperation around its first opening means with the second opening means of said one turbine rotor, a plurality of said turbine blades on said one turbine rotor having openings therein connecting the interior of said blades to the exterior thereof, a turbine cooling valve means positioned rearwardly of said cooling manifold and radially inwardly of said turbine vanes to direct cooling fluid to said cooling manifold, a supply of cooling fluid, means for directing said cooling fluid to said cooling valve means, first sealing means sealing each of said turbine rotors with an annular sealing member connected to the inner end of said turbine vanes, said turbine cooling valve means comprising a housing, said housing having an inner bore, said housing having an opening for cooling fluid flow entering said inner bore, duct means connecting said opening to said cooling manifold, a valving member slidable within said bore to open and close the bore opening, actuating means being connected to said valving member.
Claim 11
Dependent Claim
57 words
A combination as set forth in claim 8 wherein said bore has a second opening in said housing to permit air to enter the cavity between the turbine rotors, said valving member closing said second opening when said cooling fluid flow opening is open and opening said second opening when said cooling fluid flow opening is closed.
Claim 12
Dependent Claim
238 words
In a gas turbine engine having a compressor, a combustion section, and a turbine section, said turbine section having a turbine rotor mounted for rotation with turbine blades mounted therearound, a cooling manifold being located rearwardly of said turbine rotor and inwardly of said turbine blades, turbine vanes located in said turbine section rearwardly of said turbine blades, said cooling manifold having first opening means at its outer periphery, said turbine rotor having second opening means connected to the interior of said blades, said outer periphery of said cooling manifold having sealing cooperation around its first opening means with the second opening means of said turbine rotor, a plurality of said turbine blades having openings therein connecting the interior of said blades to the exterior thereof, a turbine cooling valve means positioned rearwardly of said cooling manifold and radially inwardly of said turbine vanes to direct cooling fluid to said cooling manifold, a supply of cooling fluid, means for directing said cooling fluid to said cooling valve means, said turbine blades being divided by a partition forming a forward compartment and a rearward compartment, the second opening means of said turbine rotor being connected to the rearward compartment, an area forward of the rotor, said turbine rotor having a third opening means connecting the area forward of the rotor to the forward compartment, means for continuously supplying a cooling fluid to said area and the third opening means.
Claim 13
Dependent Claim
238 words
In a gas turbine engine having a compressor, a combustion section, and a turbine section, said turbine section having a turbine rotor mounted for rotation with turbine blades mounted therearound, a cooling manifold being located rearwardly of said turbine rotor and inwardly of said turbine blades, turbine vanes located in said turbine section rearwardly of said turbine blades, said cooling manifold having first opening means at its outer periphery, said turbine rotor having second opening means connected to the interior of said blades, said outer periphery of said cooling manifold having sealing cooperation around its first opening means with the second opening means of said turbine rotor, a plurality of said turbine blades having openings therein connecting the interior of said blades to the exterior thereof, a turbine cooling valve means positioned rearwardly of said cooling manifold and radially inwardly of said turbine vanes to direct cooling fluid to said cooling manifold, a supply of cooling fluid, means for directing said cooling fluid to said cooling valve means, said turbine blades being divided by a partition forming a forward compartment and a rearward compartment, the second opening means of said turbine rotor being connected to the rearward compartment, an area forward of the rotor, said turbine rotor having a third opening means connecting the area forward of the rotor to the forward compartment, means for continuously supplying a cooling fluid to said area and the third opening means.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-08-03 | 1980-02-02 | 1980-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-08-03 | 1984-02-02 | 1984-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-08-03 | 1988-02-02 | 1988-08-03 | $7700.00 | Window Closed / Lapsed |