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US3148503A Expired / Lapsed US ⏱️ 0.0 years remaining

Combined gas and steam power plant

Assignee: National Research Council Canada
•
Filing: 1960-05-25
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Granted: 1964-09-15
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Expires: 1980-05-25
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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)

US2675672A Cited
US2231912A Cited
US2432177A Cited
US2603063A Cited

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

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