US3148503A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined gas and steam power plant
Assignee: National Research Council Canada
•
Filing: 1960-05-25
•
Granted: 1964-09-15
•
Expires: 1980-05-25
Abstract
No abstract record available.
Inventors
- 👤 Donald C Macphail
- 👤 Ronald A Tyler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:18
CPC Classifications
F; F01; F01K; F01K23/00; F01K23/02; F01K23/06; F01K23/10; F01K23/101
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
251 words
A GAS TURBINE POWER PLANT COMPRISING A CONTINUOUS FLOW COMBUSTOR, A HIGH PRESSURE, CONTINUOUS FLOW AIR COMPRESSOR CONNECTED TO SAID COMBUSTOR TO SUPPLY AIR DIRECTLY THERETO, A LOW PRESSURE, CONTINUOUS FLOW AIR COMPRESSOR CONNECTED TO SAID HIGH PRESSURE AIR COMPRESSOR TO SUPPLY AIR THERETO, A GAS TURBINE CONNECTED TO RECEIVE OUTPUT GAS FROM SAID COMBUSTOR, A MAIN SHAFT INTERCONNECTING SAID GAS TURBINE AND SAID LOW PRESSURE COMPRESSOR, A LOAD TURBINE CONNECTED TO RECEIVE OUTPUT GAS FROM SAID COMBUSTOR, A STEAM TURBINE, A STEAM TURBINE SHAFT INTERCONNECTING SAID STEAM TURBINE AND SAID HIGH PRESSURE COMPRESSOR, SAID STEAM TURBINE SHAFT BEING INDEPENDENT OF SAID MAIN SHAFT AND DRIVING ONLY SAID HIGH PRESSURE COMPRESSOR, STEAM GENERATING MEANS FOR SUPPLYING STEAM TO SAID STEAM TURBINE, AND CONTROL MEANS FOR CONTROLLING FLOW OF FUEL TO SAID COMBUSTOR INDEPENDENTLY OF THE SPEED OF SAID STEAM TURBINE SHAFT, SAID CONTROL MEANS INCLUDING A CONTROL MECHANISM COMPRISING A FUEL VALVE CONTROLLING FLOW OF FUEL TO SAID COMBUSTOR, A STEAM VALVE CONTROLLING FLOW OF STEAM TO SAID STEAM TURBINE, AND THROTTLE MEANS FOR CONTROLLING SAID VALVES IN SUCH A MANNER THAT INITIAL OPENING MOVEMENT OF SAID THROTTLE MEANS FROM A DEAD IDLE CONDITION OPENS SAID STEAM VALVE TO EFFECT RAPID ACCELERATION OF SAID STEAM TURBINE SHAFT WITH CONSEQUENT RAPID INCREASE OF MASS FLOW THROUGH SAID COMBUSTOR AND ACCELERATION OF SAID MAIN SHAFT, WHILE FURTHER OPENING OF SAID THROTTLE MEANS SERVES TO OPEN SAID FUEL VALVE TO SUPPLY MORE FUEL TO SAID COMBUSTOR TO DEVELOP GREATER POWER AT SAID LOAD TURBINE.
Claim 2
Dependent Claim
251 words
A GAS TURBINE POWER PLANT COMPRISING A CONTINUOUS FLOW COMBUSTOR, A HIGH PRESSURE, CONTINUOUS FLOW AIR COMPRESSOR CONNECTED TO SAID COMBUSTOR TO SUPPLY AIR DIRECTLY THERETO, A LOW PRESSURE, CONTINUOUS FLOW AIR COMPRESSOR CONNECTED TO SAID HIGH PRESSURE AIR COMPRESSOR TO SUPPLY AIR THERETO, A GAS TURBINE CONNECTED TO RECEIVE OUTPUT GAS FROM SAID COMBUSTOR, A MAIN SHAFT INTERCONNECTING SAID GAS TURBINE AND SAID LOW PRESSURE COMPRESSOR, A LOAD TURBINE CONNECTED TO RECEIVE OUTPUT GAS FROM SAID COMBUSTOR, A STEAM TURBINE, A STEAM TURBINE SHAFT INTERCONNECTING SAID STEAM TURBINE AND SAID HIGH PRESSURE COMPRESSOR, SAID STEAM TURBINE SHAFT BEING INDEPENDENT OF SAID MAIN SHAFT AND DRIVING ONLY SAID HIGH PRESSURE COMPRESSOR, STEAM GENERATING MEANS FOR SUPPLYING STEAM TO SAID STEAM TURBINE, AND CONTROL MEANS FOR CONTROLLING FLOW OF FUEL TO SAID COMBUSTOR INDEPENDENTLY OF THE SPEED OF SAID STEAM TURBINE SHAFT, SAID CONTROL MEANS INCLUDING A CONTROL MECHANISM COMPRISING A FUEL VALVE CONTROLLING FLOW OF FUEL TO SAID COMBUSTOR, A STEAM VALVE CONTROLLING FLOW OF STEAM TO SAID STEAM TURBINE, AND THROTTLE MEANS FOR CONTROLLING SAID VALVES IN SUCH A MANNER THAT INITIAL OPENING MOVEMENT OF SAID THROTTLE MEANS FROM A DEAD IDLE CONDITION OPENS SAID STEAM VALVE TO EFFECT RAPID ACCELERATION OF SAID STEAM TURBINE SHAFT WITH CONSEQUENT RAPID INCREASE OF MASS FLOW THROUGH SAID COMBUSTOR AND ACCELERATION OF SAID MAIN SHAFT, WHILE FURTHER OPENING OF SAID THROTTLE MEANS SERVES TO OPEN SAID FUEL VALVE TO SUPPLY MORE FUEL TO SAID COMBUSTOR TO DEVELOP GREATER POWER AT SAID LOAD TURBINE.
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) | 1967-09-15 | 1968-03-16 | 1968-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-15 | 1972-03-16 | 1972-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-15 | 1976-03-16 | 1976-09-15 | $7700.00 | Window Closed / Lapsed |