US3132483A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas turbine engine combustion chamber
Assignee: Rolls Royce PLC
•
Filing: 1961-04-24
•
Granted: 1964-05-12
•
Expires: 1981-04-24
Abstract
No abstract record available.
Inventors
- 👤 Lefebvre Arthur Henry
- 👤 Smith Herbert Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:07
CPC Classifications
F; F23; F23R; F23R3/00; F23R3/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
AN ANNULAR COMBUSTION CHAMBER FOR A GAS TURBINE ENGINE COMPRISING SPACED OUTER AND INNER CONCENTRIC COEXTENSIVE CASINGS, SPACED OUTER AND INNER CONCENTRIC COEXTENSIVE ANNUALAR FLAME TUBES MOUNTED BETWEEN SAID OUTER AND INNER CASINGS, SAID OUTER FLAME TUBE HAVING AN INNER WALL BOUNDING THE COMBUSTION ZONE THEREIN, AND SAID INNER FLAME TUBE HAVING AN OUTER WALL BOUNDING THE COMBUSTION ZONE THEREIN, SAID OUTER AND INNER WALLS BOUNDING ANNULAR AXIALLY EXTENDING AIR PASSAGE THEREBETWEEN, PRIMARY AIR APERTURES IN SAID OUTER WALL AND IN SAID INNER WALL AND ESTABLISHING FLUID FLOW COMMUNICATION BETWEEN SAID AIR PASSAGE AND EACH OF SAID FLAME TUBES, EACH OF SAID PRIMARY AIR APERTURES BEING LOCATED CLOSELY ADJACENT THE UPSTREAM END OF THE RESPECTIVE FLAME TUBE, SAID PRIMARY AIR APERTURES BEING THE ONLY APERTURES LEADING INTO THE FLAME TUBES
Claim 2
Dependent Claim
130 words
AN ANNULAR COMBUSTION CHAMBER FOR A GAS TURBINE ENGINE COMPRISING SPACED OUTER AND INNER CONCENTRIC COEXTENSIVE CASINGS, SPACED OUTER AND INNER CONCENTRIC COEXTENSIVE ANNUALAR FLAME TUBES MOUNTED BETWEEN SAID OUTER AND INNER CASINGS, SAID OUTER FLAME TUBE HAVING AN INNER WALL BOUNDING THE COMBUSTION ZONE THEREIN, AND SAID INNER FLAME TUBE HAVING AN OUTER WALL BOUNDING THE COMBUSTION ZONE THEREIN, SAID OUTER AND INNER WALLS BOUNDING ANNULAR AXIALLY EXTENDING AIR PASSAGE THEREBETWEEN, PRIMARY AIR APERTURES IN SAID OUTER WALL AND IN SAID INNER WALL AND ESTABLISHING FLUID FLOW COMMUNICATION BETWEEN SAID AIR PASSAGE AND EACH OF SAID FLAME TUBES, EACH OF SAID PRIMARY AIR APERTURES BEING LOCATED CLOSELY ADJACENT THE UPSTREAM END OF THE RESPECTIVE FLAME TUBE, SAID PRIMARY AIR APERTURES BEING THE ONLY APERTURES LEADING INTO THE FLAME TUBES
References Cited (Backward Citations)
GB620270A
Cited
US2798360A
Cited
US2931174A
Cited
US2765621A
Cited
US2982098A
Cited
US2996884A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-05-12 | 1967-11-11 | 1968-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-12 | 1971-11-11 | 1972-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-12 | 1975-11-11 | 1976-05-12 | $7700.00 | Window Closed / Lapsed |