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특허 상세정보

Piezoelectric actuator

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B64C-013/24   
미국특허분류(USC) 244/75R ; 244/214 ; 244/219 ; 244/1125
출원번호 US-0271120 (1994-07-06)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 36  인용 특허 : 11

A piezoelectric actuator includes a plurality of linearly axially expandable hard piezoelectric rods located between two plates and are distributed about a central twistable core fastened between the plates, with the axis of the rod skew to the axis of the core, resembling a squirrel cage. The actuator produces a twisting movement between the plates, responsive to voltage induced expansion of those piezoelectric rods. Fly by Wire aircraft control is realized with the actuator in various systems providing all electric control of aerodynamic surfaces, incl...


An electromechanical transducer, comprising: a cylindrical shaped core, said core being torsionally flexible and longitudinally stiff, said core further defining an axis and having first and second ends; first and second end support plates fixed to the respective ends of said core, each said end plate including a peripheral portion extending radially outward beyond the outer surface of said core; a plurality of elongate rods of piezoelectric material, said plurality being equal to the integral number N, said rods being positioned about said core in non-i...

이 특허를 인용한 특허 피인용횟수: 36

  1. Eliahou-Niv Shaul,ILX ; Wygnanski Israel,ILX. Active flaperon assembly. USP2001066247670.
  2. Walls-Bruck, Marcus Peter Johannes; Bond, Ian Paul. Actuating apparatus. USP2013128607561.
  3. Alan J. Bilanin ; Robert M. McKillip, Jr.. Actuating device with at least three stable positions. USP2002026345792.
  4. McKillip ; Jr. Robert M.. Actuating device with multiple stable positions. USP2001046220550.
  5. Audren Jean Thierry,FRX. Actuator for an aircraft flight control surface. USP2000076082672.
  6. O'Shea, Hank. Aerial vehicle with variable aspect ratio deployable wings. USP2010117841559.
  7. Thomas Lorkowski DE; Frank Hermle DE; Peter Jaenker DE. Aerodynamic component with a leading edge flap. USP2002046371415.
  8. Campanile Lucio Flavio,DEX ; Hanselka Holger,DEX. Aerodynamic structure, for a landing flap, an airfoil, an elevator unit or a rudder unit, with a changeable cambering. USP2000016010098.
  9. Jaenker Peter,DEX. Airfoil member with a piezoelectrically actuated servo-flap. USP2001056231013.
  10. Audren Jean Thierry,FRX. Amplified active-material actuators. USP2001076268682.
  11. Armanios Erian A. ; Dancila D. Stefan. Apparatus and method for aerodynamic blowing control using smart materials. USP2000116142425.
  12. Chen,Jack. Camera and piezo ceramic motor therefor. USP2008027333724.
  13. Zoppitelli, Elio; Cornille, Eric. Constant velocity drive rotary-wing aircraft rotor with torque splitting differential. USP2004036712313.
  14. Dussac Marc,FRX. Device for reducing line noise inside a rotary-wing aircraft, especially a helicopter. USP2001056224014.
  15. Brewer, Paul R.; Bekircan, Suat; Raval, Reg R.. Dry lubricated rotary actuator for in blade rotor control. USP2016099440738.
  16. Lawrence, John M.. Dual rotor vertical takeoff and landing rotorcraft. USP2012048146854.
  17. Beauchamp, Charles H.; Plunkett, Stephen J.; Huyer, Stephen A.. Dynamically reconfigurable wind turbine blade assembly. USP2004086769873.
  18. Domzalski David B. ; Straub Friedrich K. ; Kennedy Dennis K.. Helicopter rotor blade flap actuator government interest. USP2000106135713.
  19. Westergaard, Carsten Hein; Hancock, Mark; Narasimalu, Srikanth. Hinged connection apparatus for securing a first wind turbine component to a second. USP2014118876473.
  20. Mayrides, Bryan D.; Welsh, William A.; DeVita, Michael Joseph; Lauder, Timothy Fred. Integration of rotary electrical actuator for swashplateless individual blade control. USP2016099452831.
  21. Facciano, Andrew B.; Moore, Robert T.; Hlavacek, Gregg J.; Seasly, Craig D.. Missile airframe and structure comprising piezoelectric fibers and method for active structural response control. USP2011118049148.
  22. William Edward Vanderbeck ; Gregory Weston Terpay ; Ka-Shu Lee ; George Gustave Zipfel ; Victor G. Mishkevich ; Thomas Edward Smith, Jr.. Permanent magnet phase-control motor. USP2002116476534.
  23. James E. Smith ; John L. Loth ; Robert P. M. Craven ; Robert Bond. Piezoelectric actuators for circulation controlled rotorcraft. USP2002076425553.
  24. Sechrist, William Stuart. Remote device control and power supply. USP2015089112377.
  25. Sechrist, William Stuart. Remote device control and power supply. USP2017029561764.
  26. Sechrist, William Stuart. Remote device control and power supply. USP2012048148843.
  27. Goepel, Ernst. Rotary actuator. USP2016089413273.
  28. Toulmay, Fran.cedilla.ois. Rotary wing aircraft with electric pitch control. USP2003036530542.
  29. Noriaki Katayama JP; Tatsuro Hongu JP; Eiichi Yamakawa JP. Rotor blade flap drive apparatus. USP2002126499690.
  30. Thomas Lorkowski DE; Frank Hermle DE. Rotor blade having a control flap. USP2002116481964.
  31. Bagai,Ashish. Rotor blade pitch control assembly. USP2006016984109.
  32. Wood,Jeffrey H. Shape changing structure. USP2007057216831.
  33. A. Dean Jacot ; Robert T. Ruggeri ; Dan J. Clingman. Shape memory alloy device and control method. USP2002126499952.
  34. Jacot Arthur Dean ; Julien Gerald J. ; Clingman Dan J.. Shape memory rotary actuator. USP2000056065934.
  35. Yu-Hang Ho. System and method for deflecting an aerodynamic control surface. USP2002116481667.
  36. Audren,Jean Thierry. Vibration motor primary flight control actuator. USP2007017165746.