Patent US3382672A successfully refreshed from Google Patents.
US3382672A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas turbine engine fuel control system
Assignee: General Electric Co
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Filing: 1966-11-02
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Granted: 1968-05-14
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Expires: 1986-11-02
Abstract
No abstract record available.
Inventors
- 👤 Michael W French
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:42
CPC Classifications
F; F02; F02C; F02C9/00; F02C9/26; F02C9/40
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
174 words
A FUEL CONTROL SYSTEM FOR AN OPERATOR CONTROLLED MULTIFUEL ENGINE HAVING A COMBUSTOR, SAID FUEL CONTROL SYSTEM COMPRISING: FIRST AND SECOND DELIVERY MEANS FOR PROVIDING FLOW PATHS FOR FIRST AND SECOND FUELS TO SAID COMBUSTOR, SAID DELIVERY MEANS INCLUDING FIRST AND SECOND VARIABLE AREA ORIFICE MEANS FOR SCHEDULING FLOW OF FUEL TO SAID COMBUSTOR, MEANS FOR ALTERNATELY AND SELECTIVELY CONTROLLING THE AREA OF SAID FIRST AND SECOND VARIABLE ORIFICE MEANS FOR SCHEDULING FLOW OF SAID FIRST AND SECOND FUELS TO SAID COMBUSTOR PRIMARILY AS A FUNCTION OF OPERATOR DEMAND, MEANS FOR INITIATING FLOW OF ONE OF SAID FUELS TO SAID COMBUSTOR AND TERMINATING FLOW OF THE OTHER OF SAID FUELS TO SAID COMBUSTOR THE VARIABLE AREA ORIFICE MEANS OF SAID FIRST AND SECOND DELIVERY MEANS HAVING AREA RELATIONSHIPS IN RESPONSE TO OPERATOR DEMAND SO THAT THE TOTAL ENERGY AVAILABLE FROM COMBUSTION OF FUEL DELIVERED THROUGH SAID FIRST AND SECOND VARIABLE AREA ORIFICE MEANS TO SAID COMBUSTOR IS SUBSTANTIALLY UNAFFECTED WHEN FLOW OF FUEL TO SAID COMBUSTOR IS SWITCHED FROM ONE FUEL TO THE OTHER.
Claim 2
Dependent Claim
174 words
A FUEL CONTROL SYSTEM FOR AN OPERATOR CONTROLLED MULTIFUEL ENGINE HAVING A COMBUSTOR, SAID FUEL CONTROL SYSTEM COMPRISING: FIRST AND SECOND DELIVERY MEANS FOR PROVIDING FLOW PATHS FOR FIRST AND SECOND FUELS TO SAID COMBUSTOR, SAID DELIVERY MEANS INCLUDING FIRST AND SECOND VARIABLE AREA ORIFICE MEANS FOR SCHEDULING FLOW OF FUEL TO SAID COMBUSTOR, MEANS FOR ALTERNATELY AND SELECTIVELY CONTROLLING THE AREA OF SAID FIRST AND SECOND VARIABLE ORIFICE MEANS FOR SCHEDULING FLOW OF SAID FIRST AND SECOND FUELS TO SAID COMBUSTOR PRIMARILY AS A FUNCTION OF OPERATOR DEMAND, MEANS FOR INITIATING FLOW OF ONE OF SAID FUELS TO SAID COMBUSTOR AND TERMINATING FLOW OF THE OTHER OF SAID FUELS TO SAID COMBUSTOR THE VARIABLE AREA ORIFICE MEANS OF SAID FIRST AND SECOND DELIVERY MEANS HAVING AREA RELATIONSHIPS IN RESPONSE TO OPERATOR DEMAND SO THAT THE TOTAL ENERGY AVAILABLE FROM COMBUSTION OF FUEL DELIVERED THROUGH SAID FIRST AND SECOND VARIABLE AREA ORIFICE MEANS TO SAID COMBUSTOR IS SUBSTANTIALLY UNAFFECTED WHEN FLOW OF FUEL TO SAID COMBUSTOR IS SWITCHED FROM ONE FUEL TO THE OTHER.
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) | 1971-05-14 | 1971-11-13 | 1972-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-14 | 1975-11-13 | 1976-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-14 | 1979-11-13 | 1980-05-14 | $7700.00 | Window Closed / Lapsed |