US3139727A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel control for jet engines
Assignee: RTX Corp
•
Filing: 1955-03-03
•
Granted: 1964-07-07
•
Expires: 1975-03-03
Abstract
No abstract record available.
Inventors
- 👤 Bruce N Torell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:45
CPC Classifications
F; F02; F02K; F02K3/00
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
113 words
FOR A GAS TURBINE POWER PLANT HAVING A COMPRESSOR AND FUEL SUPPLY MEANS INCLUDING A CONDUIT, VALVE MEANS IN SAID CONDUIT FOR REGULATING FUEL FLOW TO SAID POWER PLANT, MEANS FOR CONTROLLING SAID VALVE MEANS AS A FUNCTION OF COMPRESSOR SPEED, COMPRESSOR INLET PRESSURE AND COMPRESSOR DISCHARGE PRESSURE, FIRST ACCELERATION LIMIT MEANS POSITIONED AS A FUNCTION OF COMPRESSOR INLET TEMPERATURE FOR LIMITING THE OPENING OF SAID VALVE MEANS IN ACCORDANCE WITH SAID FUNCTION, AND SECOND ACCELERATION LIMIT MEANS, INDEPENDENT OF SAID FIRST ACCELERATION LIMIT MEANS, POSITIONED AS A FUNCTION OF COMPRESSOR INLET TEMPERATURE, COMPRESSOR SPEED AND COMPRESSOR INLET PRESSURE FOR LIMITING THE OPENING OF SAID VALVE MEANS IN ACCORDANCE WITH SAID LAST-MENTIONED FUNCTION.
Claim 2
Dependent Claim
113 words
FOR A GAS TURBINE POWER PLANT HAVING A COMPRESSOR AND FUEL SUPPLY MEANS INCLUDING A CONDUIT, VALVE MEANS IN SAID CONDUIT FOR REGULATING FUEL FLOW TO SAID POWER PLANT, MEANS FOR CONTROLLING SAID VALVE MEANS AS A FUNCTION OF COMPRESSOR SPEED, COMPRESSOR INLET PRESSURE AND COMPRESSOR DISCHARGE PRESSURE, FIRST ACCELERATION LIMIT MEANS POSITIONED AS A FUNCTION OF COMPRESSOR INLET TEMPERATURE FOR LIMITING THE OPENING OF SAID VALVE MEANS IN ACCORDANCE WITH SAID FUNCTION, AND SECOND ACCELERATION LIMIT MEANS, INDEPENDENT OF SAID FIRST ACCELERATION LIMIT MEANS, POSITIONED AS A FUNCTION OF COMPRESSOR INLET TEMPERATURE, COMPRESSOR SPEED AND COMPRESSOR INLET PRESSURE FOR LIMITING THE OPENING OF SAID VALVE MEANS IN ACCORDANCE WITH SAID LAST-MENTIONED FUNCTION.
Claim 3
Dependent Claim
81 words
FOR A GAS TURBINE POWER PLANT HAVING A COMPRESSOR AND FUEL SUPPLY MEANS INCLUDING A CONDUIT, VALVE MEANS IN SAID CONDUIT FOR REGULATING FUEL FLOW TO SAID POWER PLANT, MEANS FOR CONTROLLING SAID VALVE MEANS AS A FUNCTION OF COMPRESSOR SPEED AND COMPRESSOR DISCHARGE PRESSURE, MEANS CONNECTED TO SAID VALVE MEANS FOR SCHEDULING FUEL FLOW TO MAINTAIN SELECTED COMPRESSOR SPEEDS THROUGHOUT THE RANGE OF OPERATION OF SAID COMPRESSOR, AND MEANS FOR BIASING THE SELECTION AS A FUNCTION OF COMPRESSOR INLET PRESSURE.
Claim 4
Dependent Claim
81 words
FOR A GAS TURBINE POWER PLANT HAVING A COMPRESSOR AND FUEL SUPPLY MEANS INCLUDING A CONDUIT, VALVE MEANS IN SAID CONDUIT FOR REGULATING FUEL FLOW TO SAID POWER PLANT, MEANS FOR CONTROLLING SAID VALVE MEANS AS A FUNCTION OF COMPRESSOR SPEED AND COMPRESSOR DISCHARGE PRESSURE, MEANS CONNECTED TO SAID VALVE MEANS FOR SCHEDULING FUEL FLOW TO MAINTAIN SELECTED COMPRESSOR SPEEDS THROUGHOUT THE RANGE OF OPERATION OF SAID COMPRESSOR, AND MEANS FOR BIASING THE SELECTION AS A FUNCTION OF COMPRESSOR INLET PRESSURE.
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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) | 1967-07-07 | 1968-01-06 | 1968-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-07 | 1972-01-06 | 1972-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-07 | 1976-01-06 | 1976-07-07 | $7700.00 | Window Closed / Lapsed |