Power plants – Combustion products used as motive fluid – Combined with regulation of power output feature
Reexamination Certificate
2011-06-28
2011-06-28
Cuff, Michael (Department: 3741)
Power plants
Combustion products used as motive fluid
Combined with regulation of power output feature
C060S776000
Reexamination Certificate
active
07966801
ABSTRACT:
An Active Combustion Control System and method provides for monitoring combustor pressure and modulating fuel to a gas turbine combustor to prevent combustion dynamics and/or flame extinguishments. The system includes an actuator, wherein the actuator periodically injects pulsed fuel into the combustor. The apparatus also includes a sensor connected to the combustion chamber down stream from an inlet, where the sensor generates a signal detecting the pressure oscillations in the combustor. The apparatus controls the actuator in response to the sensor. The apparatus prompts the actuator to periodically inject pulsed fuel into the combustor at a predetermined sympathetic frequency and magnitude, thereby controlling the amplitude of the pressure oscillations in the combustor by modulating the natural oscillations.
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Fortin Jeffrey B.
Kammer Leonardo C.
Knobloch Aaron
Mancini Alfred Albert
Myers William J.
Cuff Michael
DeCristofare Richard A.
General Electric Company
Wongwian Phutthiwat
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