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Variable area nozzle for gas turbine engines driven by shape memory alloy actuators

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) G05G-001/00   
미국특허분류(USC) 074/469; 244/219
출원번호 US-0755566 (2004-01-12)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 18  인용 특허 : 10
초록
▼

A gas turbine engine includes a variable area nozzle having a plurality of flaps. The flaps are actuated by a plurality of actuating mechanisms driven by shape memory alloy (SMA) actuators to vary fan exist nozzle area. The SMA actuator has a deformed shape in its martensitic state and a parent shape in its austenitic state. The SMA actuator is heated to transform from martensitic state to austenitic state generating a force output to actuate the flaps. The variable area nozzle also includes a plurality of return mechanisms deforming the SMA actuator whe...

대표
청구항
▼

We claim: 1. A mechanism comprising: a four bar linkage having a non-movable rigid member and movable members; and a SMA actuator engaging at least one movable member to provide movement thereto, said SMA actuator having a plurality of SMA segments that move linearly from a first position to a second position upon transition from a martensitic state to an austenitic state. 2. The mechanism according to claim 1 wherein said four bar linkage is a parallel four bar linkage such that the plurality of SMA segments of said SMA actuator cooperate with the f...

이 특허에 인용된 특허 (10)

  1. Cincotta Manuel (Tiverton RI) Nadolink Richard H. (Portsmouth RI). Articulated control surface. USP1992055114104.
  2. Beauchamp Charles H. (Jamestown RI) Cincotta ; Jr. Manuel (Tiverton RI) Raffa Anthony V. (Newport RI) Gauthier Benoit G. (Little Compton RI). Articulated fin/wing control system. USP1993025186420.
  3. Palmer Mark D. (45 Calvin St. Rochester NY 14612). Double action spring actuator. USP1989034811564.
  4. Brudnicki Myron J. (San Pedro CA). Rotary actuator. USP1995035396769.
  5. Yaeger, John R.; Morgan, Robert K.. Self-protecting and conditioning memory metal actuator. USP1985124559512.
  6. Morgan Robert K. (Pleasant Hill CA) Yaeger John R. (Sunnyvale CA). Self-regulated actuator. USP1985064524343.
  7. Cole James B. (Mercer Island WA). Variable camber airfoil. USP1977104053124.
  8. Roglin Robert L. (Duluth GA) Hanagud Sathyanaraya (Atlanta GA). Variable camber control of airfoil. USP1992095150864.
  9. McKinney Maurice E. (Bellevue WA) Rudolph Peter K. C. (Seattle WA). Variable camber leading edge mechanism with Krueger flap. USP1984014427168.
  10. Banks Ridgway (7411 Park Vista El Cerrito CA 94530). Vertically oscillating heat engine. USP1987094691518.

이 특허를 인용한 특허 피인용횟수: 18

  1. Zsurka, Mark. Aerodynamic track fairing for a gas turbine engine fan nacelle. USP20190310240561.
  2. Calder, David Patrick; Bhutiani, Pupinder. Apparatus and methods for linear actuation of flow altering components of jet engine nozzle. USP2013128613398.
  3. Chir, Adam P; Rolt, Andrew M. Cooling system for an aero gas turbine engine. USP2014098833053.
  4. Aronsson, Egon; Billett, Mike. Device for moving at least one moveable element in a gas turbine. USP2011017866228.
  5. Core, Robert A.. Dilating fan duct nozzle. USP2010057716932.
  6. Rosenkrans, William E.; Morris, Robert J.. Flutter sensing system for a gas turbine engine. USP2014028646251.
  7. Webster, John Richard. Gas turbine engine exhaust nozzle having a composite article having a shape memory material member. USP2012108291710.
  8. Prasad, Dilip; Feng, Jinzhang; Sabnis, Jayant S.. Gas turbine engine inlet with noise reduction features. USP2012108286654.
  9. Petty, Dale William; Swanson, Timothy A.; McMahon, Shawn M.. Gas turbine engine systems involving variable nozzles with flexible panels. USP2016029267463.
  10. Petty, Dale William; McMahon, Shawn M.; Murphy, Michael Joseph; Zamora, Sean P.; Swanson, Timothy A.. Gas turbine engine systems involving variable nozzles with sliding doors. USP2013018356483.
  11. Zamora, Sean P.; Murphy, Michael Joseph. Gas turbine engine with variable area fan nozzle. USP2012038141366.
  12. Shmilovich, Arvin; Yadlin, Yoram; Smith, David M.; Clark, Roger W.. Integrated engine exhaust systems and methods for drag and thermal stress reduction. USP2010037669785.
  13. Shmilovich, Arvin; Yadlin, Yoram; Smith, David M.; Clark, Roger W.. Integrated engine exhaust systems and methods for drag and thermal stress reduction. USP2010097798423.
  14. Wood,Jeffrey H. Shape changing structure. USP2007057216831.
  15. Mankame, Nilesh D.; Shaw, John Andrew; Reedlunn, Benjamin; Browne, Alan L.; Gao, Xiujie; Alexander, Paul W.; Aase, Jan H.; Johnson, Nancy L.; Strom, Kenneth A.; Naik, Sanjeev M.; Namuduri, Chandra S.; Stevenson, Robin; Rodgers, William R.; Ulicny, John C.; Henry, Christopher P.; Krajewski, Paul E.; Brammajyosula, Ravindra. Shape memory alloy cables. USP2012098272214.
  16. Wagner, Joel H.. Systems and methods involving variable throat area vanes. USP2012068197209.
  17. Schwark, Jr., Fred W.; Atassi, Oliver V.; Owen, William D.. Variable area fan nozzle bearing track. USP2013058443586.
  18. Khan, Abdul Rafey; Citeno, Joseph; Stevenson, Christian Xavier; Zuo, Baifang. Variable area fuel nozzle. USP2012028123150.

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