Patent US3074472A successfully refreshed from Google Patents.
US3074472A
Expired / Lapsed
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Fuel feeding system for gas turbine engines
Assignee: Bendix Corp
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Filing: 1960-08-29
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Granted: 1963-01-22
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Expires: 1980-08-29
Abstract
No abstract record available.
Inventors
- 👤 Howard J Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:40
CPC Classifications
F; F02; F02C; F02C9/00; F02C9/16; F02K; F02K3/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
185 words
IN A FUEL FEED AND POWER CONTROL SYSTEM FOR A GAS TURBINE ENGINE HAVING A BURNER OR GENERATOR TO WHICH AIR IS SUPPLIED UNDER PRESSURE BY A DYNAMIC COMPRESSOR DRIVEN BY THE TURBINE, MEANS DEFINING A FUEL CONDUIT HAVING A FUEL FEED OR METERING RESTRICTION THEREIN, A THROTTLE VALVE FOR VARYING THE AREA OF SAID RESTRICTION TO ACCELERATE AND DECELERATE THE ENGINE, PRESSURE REGULATOR MEANS FOR AUTOMATICALLY CONTROLLING A METERING HEAD ACROSS SAID RESTRICTION INCLUDING A REGULATOR VALVE, PRESSURE RESPONSIVE MEANS CONNECTED TO SAID REGULATOR VALVE AND MEANS FOR PRODUCING A DIFFERENTIAL ACROSS SAID PRESSURE RESPONSIVE MEANS CONNECTED TO SAID REGULATOR VALVE AND MEANS FOR PRODUCING A DIFFERENTIAL ACROSS SAID PRESSURE RESPONSIVE MEANS AS A FUNCTION OF ENGINE SPEED TO MAINTAIN THE METERING HEAD ACROSS THE THROTTLE VALVE WITHIN PREDETERMINED UPPER LIMITS DURING ACCELERATION, MEANS RESPONSIVE TO CHANGES IN DENSITY OF THE AIR FLOWING TO THE ENGINE FOR ALSO VARYING THE METERING HEAD, A FUEL PUMP FOR PRESSURIZING THE FUEL FLOWING TO THE REGULATOR VALVE, MEANS DEFINING A FLOW PASSAGE ARRANGED TO BY-PASS PRESSURIZED FUEL FROM A POINT UPSTREAM OF SAID REGULATOR VALVE AROUND SAID
Claim 2
Dependent Claim
185 words
IN A FUEL FEED AND POWER CONTROL SYSTEM FOR A GAS TURBINE ENGINE HAVING A BURNER OR GENERATOR TO WHICH AIR IS SUPPLIED UNDER PRESSURE BY A DYNAMIC COMPRESSOR DRIVEN BY THE TURBINE, MEANS DEFINING A FUEL CONDUIT HAVING A FUEL FEED OR METERING RESTRICTION THEREIN, A THROTTLE VALVE FOR VARYING THE AREA OF SAID RESTRICTION TO ACCELERATE AND DECELERATE THE ENGINE, PRESSURE REGULATOR MEANS FOR AUTOMATICALLY CONTROLLING A METERING HEAD ACROSS SAID RESTRICTION INCLUDING A REGULATOR VALVE, PRESSURE RESPONSIVE MEANS CONNECTED TO SAID REGULATOR VALVE AND MEANS FOR PRODUCING A DIFFERENTIAL ACROSS SAID PRESSURE RESPONSIVE MEANS CONNECTED TO SAID REGULATOR VALVE AND MEANS FOR PRODUCING A DIFFERENTIAL ACROSS SAID PRESSURE RESPONSIVE MEANS AS A FUNCTION OF ENGINE SPEED TO MAINTAIN THE METERING HEAD ACROSS THE THROTTLE VALVE WITHIN PREDETERMINED UPPER LIMITS DURING ACCELERATION, MEANS RESPONSIVE TO CHANGES IN DENSITY OF THE AIR FLOWING TO THE ENGINE FOR ALSO VARYING THE METERING HEAD, A FUEL PUMP FOR PRESSURIZING THE FUEL FLOWING TO THE REGULATOR VALVE, MEANS DEFINING A FLOW PASSAGE ARRANGED TO BY-PASS PRESSURIZED FUEL FROM A POINT UPSTREAM OF SAID REGULATOR VALVE AROUND SAID
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) | 1966-01-21 | 1966-07-23 | 1967-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-21 | 1970-07-23 | 1971-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-21 | 1974-07-23 | 1975-01-22 | $7700.00 | Window Closed / Lapsed |