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특허 상세정보

Deployable flap edge fence

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B64C-023/06   
미국특허분류(USC) 244/199.4; 244/204.1
출원번호 US-0764253 (2010-04-21)
등록번호 US-8469315 (2013-06-25)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Parsons Behle & Latimer
인용정보 피인용 횟수 : 1  인용 특허 : 14

A method and systems are disclosed for reducing fluid flow noise. The method and systems use a thermal mechanism to deploy a flap edge fence during landing and/or other operating conditions, and stow the flap edge fence during other operational conditions such as cruise. The flap edge fence is controlled passively by ambient temperature or actively by a controller based on temperature changes corresponding to various operating conditions.


1. A method for reducing airflow noise for an aircraft having, a wing main element, a flap coupled to the wing main element, and a flap edge fence coupled to the flap, the method comprising: shaping the flap edge fence into a deployed shape and position for a first set of flight conditions to reduce the airflow noise; andshaping the flap edge fence into a stowed shape and position for a second set of flight conditions to reduce drag. 2. The method according to claim 1, wherein the flap edge fence is made of a shape memory alloy and is reconfigured in res...

이 특허에 인용된 특허 (14)

  1. Jeffrey W. Moe. Aircraft wing and method for reducing airframe-generated noise. USP2002096454219.
  2. Nelson Wilbur C. (1540 Cedar Bend Drive Ann Arbor MI 48103). Airfoil tip vortex control. USP1977044017041.
  3. Cox Ronald A. (Norman OK). Concealable flap-actuated vortex generator. USP1993105253828.
  4. Michael Campbell. Controllable vortex generator. USP2002086427948.
  5. Kennedy Dennis K. ; Straub Friedrich K. ; Hassan Ahmed A.. Helicopter in-flight rotor tracking system, method, and smart actuator therefor. USP2001116322324.
  6. Hieu T. Ngo ; Lisa E. Barlow. Lifting surface with active variable tip member and method for influencing lifting surface behavior therewith. USP2002056394397.
  7. Wygnanski Israel (4559 N. Placita de las Charcras Tucson AZ 85718). Method and apparatus for delaying the separation of flow from a solid surface. USP1993055209438.
  8. Blackner Anthony M. ; Zierten Thomas A.. Method and apparatus for reducing airframe aerosound. USP1998055749546.
  9. Ingo Borchers DE; Roger Drobietz DE; Michael Gruenewald DE; Knut Mau DE; Johann Reichenberger DE. Noise reducing vortex generators on aircraft wing control surfaces. USP2002126491260.
  10. McKillip ; Jr. Robert M.. Remotely controllable actuating device. USP1998055752672.
  11. Jacot Arthur Dean ; Julien Gerald J. ; Clingman Dan J.. Shape memory rotary actuator. USP2000056065934.
  12. Ross James C. ; Storms Bruce L.. Tip fence for reduction of lift-generated airframe noise. USP1998045738298.
  13. Griswold ; II Roger W. (Ben Franklin Rd. Old Lyme CT 06371). Vortex alleviating wing tip. USP1984104477042.
  14. Daude Martine (Rsidence les Tuileries 4 ; Square Castiglione 78150 Le Chesnay FRX). Winglets for aircraft wing tips. USP1984074457479.