US3238720A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ignition means for combustion chambers of gas turbines
Assignee: BMW Triebwerkbau GmbH
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Filing: 1962-06-13
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Granted: 1966-03-08
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Expires: 1982-06-13
Abstract
No abstract record available.
Inventors
- 👤 Larisch Kurt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:59
CPC Classifications
F; F02; F02C; F02C7/00; F02C7/26; F02C7/264; F23; F23R; F23R3/00; F23R3/28; F23R3/38
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
A COMBUSTION CHAMBER FOR GAS TURBINES HAVING A SUBSTANTIALLY ANNULARLY SHAPED COMBUSTION CHAMBER EFFECTIVELY FORMING A RADIALLY OUTER SECONDARY COMBUSTION SPACE PORTION ADJOINED BY A RADIALLY INNER PRIMARY COMBUSTION SPACE PORTION, FUEL INJECTION MEANS IN ONE OF SAID PORTIONS FOR INJECTING A FUEL-RICH MIXTURE INTO SAID COMBUSTION CHAMBER, IGNITION MEANS IN THE OTHER OF SAID PORTIONS FOR IGNITING THE FUEL DURING STARTING OF THE TURBINE, AND AUXILIARY MEANS DISPOSED IN SAID OTHER COMBUSTION SPACE PORTION FOR PROVIDING DURING INITIAL IGNITION OF SAID GAS TURBINE, AN OXYGEN-ENRICHED FLAME JET DIRECTED FROM SAID OTHER COMBUSTION SPACE PORTION TOWARD SAID ONE COMBUSTION SPACE PORTION WHICH IGNITES THE FUEL-RICH MIXTURE PRESENT THEREIN, SAID AUXILIARY MEANS BEING DISPOSED TO THE REAR OF SAID IGNITION MEANS AS VIEWED IN THE DIRECTION OF ROTATION OF SAID INJECTION MEANS AND SUBSTANTIALLY IN THE SAME PLANE AS SAID FUEL INJECTION MEANS.
Claim 2
Dependent Claim
142 words
A COMBUSTION CHAMBER FOR GAS TURBINES HAVING A SUBSTANTIALLY ANNULARLY SHAPED COMBUSTION CHAMBER EFFECTIVELY FORMING A RADIALLY OUTER SECONDARY COMBUSTION SPACE PORTION ADJOINED BY A RADIALLY INNER PRIMARY COMBUSTION SPACE PORTION, FUEL INJECTION MEANS IN ONE OF SAID PORTIONS FOR INJECTING A FUEL-RICH MIXTURE INTO SAID COMBUSTION CHAMBER, IGNITION MEANS IN THE OTHER OF SAID PORTIONS FOR IGNITING THE FUEL DURING STARTING OF THE TURBINE, AND AUXILIARY MEANS DISPOSED IN SAID OTHER COMBUSTION SPACE PORTION FOR PROVIDING DURING INITIAL IGNITION OF SAID GAS TURBINE, AN OXYGEN-ENRICHED FLAME JET DIRECTED FROM SAID OTHER COMBUSTION SPACE PORTION TOWARD SAID ONE COMBUSTION SPACE PORTION WHICH IGNITES THE FUEL-RICH MIXTURE PRESENT THEREIN, SAID AUXILIARY MEANS BEING DISPOSED TO THE REAR OF SAID IGNITION MEANS AS VIEWED IN THE DIRECTION OF ROTATION OF SAID INJECTION MEANS AND SUBSTANTIALLY IN THE SAME PLANE AS SAID FUEL INJECTION MEANS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-07 | 1969-09-06 | 1970-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-07 | 1973-09-06 | 1974-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-07 | 1977-09-06 | 1978-03-08 | $7700.00 | Window Closed / Lapsed |