[특허]Method and apparatus for active control of combustion devices

Method and apparatus for active control of combustion devices 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F02C-005/00
출원번호	US-0106866 (1993-08-16)
발명자 / 주소	Wilson Kenneth (1213 Flora Way Ridgecrest CA 93555) Schadow Klaus (100 W. Sydnor Ridgecrest CA 93555) Smith Robert (315 Rancho Ridgecrest CA 93555) Gutmark Ephraim (602 Rio Bravo Ridgecrest CA 93555)
인용정보	피인용 횟수 : 39 인용 특허 : 0

초록 ▼

An improved technique for the active control of various combustion devices. This improved technique employs a flame kernel pulse actuator which produces periodic flame kernels by a spark ignition of a stoichiometric air and fuel mixture upstream of the combustion chamber. The discrete flame kernels are convected in a duct of premixed fuel and air which produce discrete pressure oscillations due to the energy release as each discrete flame propagates. Because the source of the energy release is essentially a chemical reaction, the flame kernel pulse actuator is able to produce a substantial amount of energy release even at the high operating pressures which are often encountered in many operational environments. These pressure oscillations may be adjusted to suppress or augment any combustion induced pressure oscillations as well as act to modulate the mixing layer between the fuel and air, thus controlling the downstream combustion process. The flame kernel pulse actuator comprises an actuator housing, a secondary fuel injection system, and an igniter. The combination of the igniter and fuel injection system produces a plurality of discrete flame kernels which are convected downstream toward the combustion chamber. The present flame kernel pulse actuator further includes a pressure sensor which is positioned so as to measure the acoustic oscillations in the combustion chamber and a controller device which uses the output of the sensor to control the frequency, phase shift, and amplitude of the discrete flame kernels.

대표청구항 ▼

A flame kernel pulse actuator for actively controlling the stability of an operating combustion device, said combustion device having an inlet duct, a combustion chamber, a primary fuel injection means, a fuel and air mixture, and an ignition means, said flame kernel pulse actuator comprising: an actuator housing adapted for attachment within said inlet duct of said combustion device, said housing defining an open aft end facing in a downstream orientation with respect to said combustion device; an auxiliary fuel injection means adapted for supplying an auxiliary fuel and air mixture within said actuator housing, said auxiliary fuel and air mixture supplied by said auxiliary fuel injection means being separate from the fuel and air mixture required for the operation of the combustion device; an igniter disposed in said actuator housing which in conjunction with said auxiliary fuel injection means produces a plurality of discrete flame kernels which are convected toward said open aft end of said actuator housing and released into said inlet duct, said discrete flame kernels further releasing a predetermined quantity of energy into said inlet duct and upstream of said combustion chamber, thereby producing discrete pressure oscillations in said inlet duct which propagate towards the combustion chamber; and a controlling means for actively controlling the frequency, phase shift, and amplitude of the discrete flame kernels in said inlet duct which affects the frequency, phase shift, and amplitude of said discrete pressure oscillations which in turn affects the stability of said operating combustion device.

이 특허를 인용한 특허 (39)

Breidenthal, Robert E.; Casasanta, III, Vincenzo; Colannino, Joseph; Goodson, David B.; Prevo, Tracy A.; Rutkowski, Richard F.; Wiklof, Christopher A., Acoustic control of an electrodynamic combustion system.
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Breidenthal, Robert E.; Casasanta, III, Vincenzo; Colannino, Joseph; Goodson, David B.; Prevo, Tracy A.; Rutkowski, Richard F.; Wiklof, Christopher A., Acoustic control of an electrodynamic combustion system.
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Iasillo Robert J. ; Davis ; Jr. Lewis Berkley ; Black Stephen Hugh, Apparatus and method for active control of oscillations in gas turbine combustors.
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Umeh, Chukwueloka; Kammer, Leonardo C.; Shah, Minesh; Fortin, Jeffrey B.; Knobloch, Aaron; Myers, William J.; Mancini, Alfred Albert, Apparatus and method for gas turbine active combustion control system.
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Schuermans,Bruno; Zajadatz,Martin; Paschereit,Christian Oliver, Apparatus and method for testing combustion.
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Harrold,Ronald T.; Sanjana,Zal N.; Holm,Richard D., Apparatus for sensing pressure fluctuations in a hostile environment.
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Ryan, William Richard; Berksoy, Sanem, Automatic combustion control for a gas turbine.
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Ryan, William Richard; Berksoy, Sanem, Automatic combustion control for a gas turbine.
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Steele, David, Combustion device.
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Baramov, Lubomir; Taylor, Curtis L., Combustion resonance suppression.
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Bulat, Ghenadie, Combustion system for a gas turbine comprising a resonator.
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Glezer, Ari; Crittenden, Thomas M., Combustion-driven jet actuator.
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Gemmen Randall S. ; Richards George A. ; Yip Mui-Tong Joseph ; Robey Edward H. ; Cully Scott R. ; Addis Richard E., Combustor oscillating pressure stabilization and method.
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Richards George A. ; Gemmen Randall S., Combustor oscillation attenuation via the control of fuel-supply line dynamics.
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Dean Anthony John, Combustor tuning.
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Richards George A. ; Janus Michael C. ; Robey Edward H., Dynamically balanced fuel nozzle and method of operation.
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Parker, David; Ryan, William Richard, Gas turbine with flexible combustion sensor connection.
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Stanek, Michael J., High frequency pulsed fuel injector.
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Myers, Jr., William Joseph; Mancini, Alfred Albert; Hsiao, George Chia-Chun; Li, Shui-Chi; Hsieh, Shih-Yang; Mongia, Hukam Chand, Method and apparatus for actively controlling fuel flow to a mixer assembly of a gas turbine engine combustor.
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Ephraim Gutmark ; Christian Oliver Paschereit CH; Wolfgang Weisenstein CH, Method and apparatus for controlling thermoacoustic vibrations in a combustion system.
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Paschereit, Christian Oliver; Weisenstein, Wolfgang; Gutmark, Ephraim; Polifke, Wolfgang, Method and apparatus for minimizing thermoacoustic vibrations in gas-turbine combustion chambers.
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Saddoughi,Seyed Gholamali, Method and apparatus for modulating flow separation.
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Cohen, Jeffrey Mark; Rey, Nancy Mary; Rey, Gonzalo J.; Jacobson, Clas A., Method and apparatus for use with a gas fueled combustor.
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Seume Jorg,DEX ; Vortmeyer Nicolas,DEX ; Gleis Stephan,DEX ; Hermann Jakob,DEX ; Vortmeyer Dieter,DEX, Method and device for acoustic modulation of a flame produced by a hybrid burner.
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Polifke Wolfgang,CHX ; Paschereit Christian Oliver,CHX ; Dobbeling Klaus,CHX, Method and device for minimizing thermoacoustic vibrations in gas-turbine combustion chambers.
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Wilson, Kenneth J.; Yu, Kenneth H.; Parr, Timothy; Schadow, Klaus C., Method and device for modulation of a flame.
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Wilson, Kenneth J.; Yu, Kenneth H.; Parr, Timothy; Schadow, Klaus C., Method and device for modulation of a flame.
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Wilson, Kenneth J.; Yu, Kenneth H.; Parr, Timothy; Schadow, Klaus C., Method and device for modulation of a flame.
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Ephraim Gutmark ; Christian Oliver Paschereit CH; Wolfgang Weisenstein CH, Method for minimizing thermoacoustic oscillations in gas turbine combustion chambers.
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Ephraim Gutmark ; Christian Oliver Paschereit CH; Wolfgang Weisenstein CH, Method of controlling thermoacoustic vibrations in a combustion system, and combustion system.
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Taware,Avinash Vinayak; Shah,Minesh Ashok; Singh,Ajai; Ziminsky,Willy Steve; Wu,Pingchuan, Methods and apparatus for gas turbine engine lean blowout avoidance.
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Okumura Yasushi,JPX, Pulsated combustion apparatus and a method for controlling such a pulsated combustion apparatus.
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Winfree Don D. ; Hunter ; Jr. Louis G., Pulse detonation igniter for pulse detonation chambers.
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Taware, Avinash Vipayak; Shah, Minesh Ashok; Singh, Ajai; Ziminsky, Willy Steve; Wu, Pingchuan, System and apparatus for gas turbine engine lean blowout avoidance.
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Pinard, Pierre Francois; Hinckley, Kevin Michael; Tangirala, Venkat Eswarlu; Rasheed, Adam; Chapin, David Michael; Dean, Anthony John, System and method for passive valving for pulse detonation combustors.
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Critchley,Ian L.; Anson,Bruce; Caspermeyer,Matthew C.; Scott,Mike W., System and method for turbine engine adaptive control for mitigation of instabilities.
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Umeh, Chukwueloka Obiora; Haynes, Joel Meier; Goldmeer, Jeffrey Scott, System for controlling combustion dynamics and method for operating the same.
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Wasif, Samer P., Utilizing a diluent to lower combustion instabilities in a gas turbine engine.
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Graber, Curtis E., Vortex cannon with enhanced ring vortex generation.
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