Patent US3174281A successfully refreshed from Google Patents.
US3174281A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Afterburner fuel control
Assignee: Motors Liquidation Co
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Filing: 1962-12-14
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Granted: 1965-03-23
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Expires: 1982-12-14
Abstract
No abstract record available.
Inventors
- 👤 Harry C Zeisloft
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:06
CPC Classifications
F; F02; F02C; F02C9/00; F02C9/26; F02C9/32; F02C9/34; F02K; F02K3/00; F02K3/08; F02K3/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
181 words
AN AFTERBURNER FUEL CONTROL FOR A TURBOJET ENGINE HAVING MAIN COMBUSTION APPARATUS, MEANS FOR SUPPLYING FUEL THERETO, A TURBINE, AN AFTERBURNER, AND MEANS FOR SUPPLYING FUEL TO THE AFTERBURNER, THE AFTERBURNER FUEL CONTROL COMPRISING, IN COMBINATION, MEANS FOR CONTROLLING AFTERBURNER FUEL FLOW TO MAINTAIN SAID FLOW IN A DETERMINED RATIO TO MAIN FUEL FLOW, MEANS CONNECTED TO THE CONTROLLING MEANS ADAPTED TO DETERMINE THE SAID RATIO INCLUDING THREEDIMENSIONAL CAM MEANS MOVED IN ONE SENSE IN RESPONSE TO TURBINE SPEED AND IN ANOTHER SENSE IN RESPONSE TO ENGINE INLET AIR TEMPERATURE, THE CAM MEANS HAVING A FOLLOWER AND BEING A CONTOURED THAT THE MOVEMENT OF THE FOLLOWER REPRESENTS THE RELATION BETWEEN ENGINE AIR FLOW AND MAIN FUEL FLOW, AND MANUALLY CONTROLLABLE VARIABLE RATIO SETTING MEANS CONNECTING THE CAM FOLLOWER TO THE AFTERBURNER FUEL FLOW CONTROLLING MEANS; MEANS RESPONSIVE TO ENGINE INLET AIR TEMPERATURE COUPLED TO THE RATIO SETTING MEANS ADAPTED TO DECREASE THE RATIO SETTING IN RESPONSE TO INLET TEMPERATURE ABOVE A PREDETERMINED LEVEL, AND MEANS RESPONSIVE TO THE RADIO SETTING MEANS FOR REDUCING THE PREDETERMINED LEVEL AS THE RATIO SETTING INCREASES.
Claim 2
Dependent Claim
181 words
AN AFTERBURNER FUEL CONTROL FOR A TURBOJET ENGINE HAVING MAIN COMBUSTION APPARATUS, MEANS FOR SUPPLYING FUEL THERETO, A TURBINE, AN AFTERBURNER, AND MEANS FOR SUPPLYING FUEL TO THE AFTERBURNER, THE AFTERBURNER FUEL CONTROL COMPRISING, IN COMBINATION, MEANS FOR CONTROLLING AFTERBURNER FUEL FLOW TO MAINTAIN SAID FLOW IN A DETERMINED RATIO TO MAIN FUEL FLOW, MEANS CONNECTED TO THE CONTROLLING MEANS ADAPTED TO DETERMINE THE SAID RATIO INCLUDING THREEDIMENSIONAL CAM MEANS MOVED IN ONE SENSE IN RESPONSE TO TURBINE SPEED AND IN ANOTHER SENSE IN RESPONSE TO ENGINE INLET AIR TEMPERATURE, THE CAM MEANS HAVING A FOLLOWER AND BEING A CONTOURED THAT THE MOVEMENT OF THE FOLLOWER REPRESENTS THE RELATION BETWEEN ENGINE AIR FLOW AND MAIN FUEL FLOW, AND MANUALLY CONTROLLABLE VARIABLE RATIO SETTING MEANS CONNECTING THE CAM FOLLOWER TO THE AFTERBURNER FUEL FLOW CONTROLLING MEANS; MEANS RESPONSIVE TO ENGINE INLET AIR TEMPERATURE COUPLED TO THE RATIO SETTING MEANS ADAPTED TO DECREASE THE RATIO SETTING IN RESPONSE TO INLET TEMPERATURE ABOVE A PREDETERMINED LEVEL, AND MEANS RESPONSIVE TO THE RADIO SETTING MEANS FOR REDUCING THE PREDETERMINED LEVEL AS THE RATIO SETTING INCREASES.
References Cited (Backward Citations)
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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) | 1968-03-22 | 1968-09-21 | 1969-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-22 | 1972-09-21 | 1973-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-22 | 1976-09-21 | 1977-03-23 | $7700.00 | Window Closed / Lapsed |