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특허 상세정보

Oscillating air jets for reducing HSI noise

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B64C-027/04   
미국특허분류(USC) 416/042 ; 416/003 ; 416/090A ; 416/091 ; 416/500 ; 415/119 ; 244/130 ; 244/199 ; 244/203 ; 244/204 ; 244/208
출원번호 US-0198843 (1998-11-24)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Stout, Uxa, Buyan & Mullins, LLPStout
인용정보 피인용 횟수 : 27  인용 특허 : 16
초록

Porous surfaces on an aerodynamic structure driven with positive and negative pressures are used in an active control system for attenuating shock waves responsible for high-speed impulsive (HSI) noise. The control system includes an array of apertures in the outer skin of the structure providing fluid communication between the exterior flow stream and an interior volume of the structure. A movable diaphragm within the structure pushes air out of and pulls air in through the apertures under the action of a drive mechanism within the structure, thus creat...

대표
청구항

[ What is claimed is:] [1.]1. An active control system for use on an aerodynamic structure having an outer skin surrounding an interior volume, the active control system comprising:an array of apertures disposed in the outer skin and providing fluid communication from the exterior of the outer skin to a portion of the interior volume;a diaphragm positioned in the interior volume and being displaceable between a first position and a second position, an actuating surface of the diaphragm being exposed to the portion of the interior volume such that displac...

이 특허에 인용된 특허 (16)

  1. Destuynder Roger (Noisy le Sec FRX) Bouttes Jacques (Paris FRX) Poisson-Quinton Philippe (Paris FRX). Active method and installation for the reduction of buffeting of the wings of an aircraft. USP1987114706902.
  2. Campbell Thomas G. (Cheshire CT). Aircraft rotor blade with passive tuned tab. USP1985044514143.
  3. O'Neil Patrick J.. Airfoil lift management device. USP1998095806808.
  4. Wilson William F. (Bedford TX). Automatic one-per-rev control system. USP1976053954229.
  5. Charles Bruce D. (Mesa AZ) Hassan Ahmed A. (Mesa AZ) Tadghighi Hormoz (Gilbert AZ) JanakiRam Ram D. (Mesa AZ) Sankar Lakshmi N. (Atlanta GA). Blade vortex interaction noise reduction techniques for a rotorcraft. USP1996125588800.
  6. Mangiarotty Rudolph A. (Seattle WA). Control of laminar flow in fluids by means of acoustic energy. USP1989024802642.
  7. Nordstrm Lennart (Linkping SEX). Control system having variably biased manipulatable unit. USP1986044580210.
  8. Tamura Raymond M. (218 Lagoon Dr. Honolulu HI 96819). Helicopter lifting and propelling apparatus. USP1979104169567.
  9. Zimmer Herbert (Friedrichshafen DEX). Helicopter rotor blade control. USP1989014799859.
  10. Glezer Ari ; Smith Barton L. ; Trautman Mark A.. Modifications of fluid flow about bodies and surfaces with synthetic jet actuators. USP1999095957413.
  11. Azuma Akira (Kawasaki JPX). Noise reduction device for rotorcraft. USP1996105562414.
  12. Hassan Ahmed A. ; Straub Friedrich K. ; Domzalski David B.. Oscillating air jets for helicopter rotor aerodynamic control and BVI noise reduction. USP2000076092990.
  13. Domzalski David B. ; Hassan Ahmed A. ; Kennedy Dennis K.. Oscillating air jets on aerodynamic surfaces. USP1999085938404.
  14. Johnson ; Jr. Raymond G. (Orange CT) Trustee Bill L. (Jamaica NY) Fischer William C. (Monroe CT). Pneumatic control valve actuator computer control arrangement. USP1985084534702.
  15. Schmitz Frederic H. (Palo Alto CA). Rotorcraft blade-vortex interaction controller. USP1995085437419.
  16. Coleman, Clint; Kurth, William T.. Wind turbine rotor aileron. USP1994065320491.

이 특허를 인용한 특허 피인용횟수: 27

  1. Bauer, Michael; Schauwecker, Ludwig; Redmann, Daniel; Steigenberger, Josef. Aircraft engine with an apparatus for pulsating expiration of gas into the exhaust nozzle. USP2015119193469.
  2. Gölling, Burkhard; King, Rudibert; Heinz, Ulrich Notger; Nitsche, Wolfgang. Aircraft with an arrangement of flow-influencing devices. USP2014028645007.
  3. Gölling, Burkhard. Aircraft with wings and a system for minimizing the influence of unsteady flow states. USP2017059656740.
  4. Glezer, Ari; Crittenden, Thomas M.. Combustion-driven jet actuator. USP2003046554607.
  5. Hatton, Geoffrey; McIntosh, Simon. Craft having a rotatable fluid propulsion device. USP2012118302901.
  6. Hassan, Ahmed A.; Osborne, Bradley A.; Schwimley, Scott; Billman, Garry; Billman, legal representative, Mary. Dynamic bumps for drag reduction at transonic-supersonic speeds. USP2011098016245.
  7. Hartman,Peter A.; Meadowcroft,Edward T.. Engine inlet air particle separator with active flow control. USP2007117296395.
  8. Valdis Kibens ; Ganesh Raman. High frequency excitation apparatus and method for reducing jet and cavity noise. USP2002046375118.
  9. Hassan,Ahmed A.; Billman,Garry. Method and apparatus for controlling a vehicle. USP2006026994297.
  10. Hassan, Ahmed A.; JanakiRam, Ram D.. Method and device for altering the separation characteristics of air-flow over an aerodynamic surface via intermittent suction. USP2005036866234.
  11. Hassan, Ahmed A.; JanakiRam, Ram D.; Cerchie, Dino A.. Method and device for altering the separation characteristics of flow over an aerodynamic surface via hybrid intermittent blowing and suction. USP2005056899302.
  12. Hassan, Ahmed A.; Domzalski, David B.; JanakiRam, Ram D.. Method and device for low-noise underwater propulsion. USP2005026851990.
  13. Hassan, Ahmed A.; Domzalski, David B.. Method and device for low-noise underwater propulsion and for reducing hull drag. USP2005036860770.
  14. Benito, Pedro L.; Wang, Jing. Method and system for operating a wind turbine generator. USP2011087988414.
  15. Boespflug, Matthew Patrick; Saddoughi, Seyed Gholamali; Bennett, Jr., Grover Andrew; Opaits, Dmytro Floriyovych. Method of using an active flow control system for lift enhancement or destruction in a wind turbine blade. USP2015109162754.
  16. Seifert, Avraham; Stalnov, Oksana; Fono, Ilan; Dayan, Isaac; Troshin, Victor; Avnaim, Maor Hai; Palei, Vitali. Oscillatory vorticity generator and applications thereof. USP2014118876064.
  17. Whalen, Edward A.. Shaping a fluid cavity of a flow control actuator for creation of desired waveform characteristics. USP2015018931518.
  18. Baruzzini, Dan J.; Miller, Daniel N.; Domel, Neal D.; Hakes, Jeff G.. Suprression of shock-induced airflow separation. USP20180810054048.
  19. Reckzeh, Daniel; Goelling, Burkhard; Lengers, Matthias. Surface element for an aircraft, aircraft and method for improving high-lift generation on a surface element. USP2016039272772.
  20. Hatton, Geoffrey. Thrust generating apparatus. USP2010127857256.
  21. Zuteck, Michael D.; Zalusky, Leigh; Lees, Paul. Turbine blades and systems with forward blowing slots. USP20180710024300.
  22. Zuteck, Michael D.; Zalusky, Leigh; Lees, Paul. Turbine blades and systems with forward blowing slots. USP2015099133819.
  23. James C. Hayes CA. Vehicle with vertical wings and a stabilizing torque system of jets to use fluid energy for forward motion. USP2002106464167.
  24. Boldrin, Clete M.; Hassan, Ahmed A.. Vernier active flow control effector. USP2012038128036.
  25. Boldrin,Clete M.; Hassan,Ahmed A.. Vernier active flow control effector. USP2007087255309.
  26. McVeigh, Michael A.; Maciolek, Robert F.. Vortex generators on rotor blades to delay an onset of large oscillatory pitching moments and increase maximum lift. USP2010077748958.
  27. Reckzeh, Daniel; Goelling, Burkhard; Lengers, Matthias. Wing for an aircraft, aircraft and method for reducing aerodynamic drag and improving maximum lift. USP2016039278753.