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특허 상세정보

Vortex alleviating wing tip

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B64C-023/00   
미국특허분류(USC) 244/199 ; 244/91
출원번호 US-0458736 (1983-01-17)
발명자 / 주소
인용정보 피인용 횟수 : 29  인용 특허 : 1
초록

A wing tip is contoured and shaped to bring about a controlled mergence of fluid flows across the upper and lower wing surfaces and alleviation of the resulting vortex when the wing is producing lift or thrust. Control through geometry of the wing tip can be augmented by discharging fluid into the merging flows which weakens the strength of the vortex and results in more rapid dissipation in the wake of an aircraft. Additionally, the origin of the vortex is prevented from migrating inboard of the wing tip which improves overall wing efficiency.

대표
청구항

An aircraft comprising a main body and an airfoil having upper and lower surfaces for producing lift when the airfoil is moved through air, the airfoil being connected at one end with the body of the craft and having an opposite, outer end from which fluid dynamic vortices emanate due to the mergence of fluid flows from above and below the foil while the foil is producing lift, the outer end of the foil projecting spanwise and having upper and lower surfaces meeting substantially at 180 degrees without concave portions at any spanwise section in the part...

이 특허를 인용한 특허 피인용횟수: 29

  1. Crouch Jeffrey D. ; Spalart Philippe R.. Active system for early destruction of trailing vortices. USP2000076082679.
  2. Shmilovich, Arvin; Yadlin, Yoram; Clark, Roger W.. Active systems and methods for controlling an airfoil vortex. USP2011098016244.
  3. Van Dam Cornelis P. (Davis CA). Aircraft stall-spin entry deterrent system. USP1988104776542.
  4. Dizdarevic, Faruk; Dizdarevic, Mithad. Airlifting surface division. USP2003066578798.
  5. Shmilovich, Arvin; Yadlin, Yoram; Clark, Roger; Leopold, Donald. Apparatus and method for the control of trailing wake flows. USP2009107597289.
  6. Shmilovich,Arvin; Yadlin,Yoram; Clark,Roger; Leopold,Donald. Apparatus and method for the control of trailing wake flows. USP2006097100875.
  7. Flaig Axel,DEX ; Schwetzler Detlev,DEX ; Stache ; deceased Ulrich,DEXITX by Ronald Seiler ; legal representative. Apparatus for influencing a wing root airflow in an aircraft. USP2000116152404.
  8. Hugues, Christian. Cylindrical wing tip with helical slot. USP2005056892988.
  9. Larssen, Jon V.; Calkins, Frederick T.. Deployable flap edge fence. USP2010077753316.
  10. Larssen, Jon V.; Calkins, Frederick T.. Deployable flap edge fence. USP2013068469315.
  11. Perry Frederick J. (Yeovil GB2). Helicopter rotor blades. USP1990124975022.
  12. Isotani, Kazuhide; Hayama, Kenji. High-lift device of flight vehicle. USP2016049302761.
  13. Isotani, Kazuhide; Hayama, Kenji. High-lift device of flight vehicle. USP2017049623956.
  14. Isotani, Kazuhide; Hayama, Kenji. High-lift device of flight vehicle. USP2017039586672.
  15. Campbell, Jr., Darrell D.; Lyons, Brett I.. Laminar flow winglet. USP20180710035588.
  16. Hieu T. Ngo ; Lisa E. Barlow. Lifting surface with active variable tip member and method for influencing lifting surface behavior therewith. USP2002056394397.
  17. Wyrembek,Susanne; May,Peter; Muthreich,Klaus. Method and device for steepening a landing approach of an aircraft. USP2008017316371.
  18. Campbell, Jr., Darrell D.; Lyons, Brett I.. Natural laminar flow wingtip. USP2015099145203.
  19. Straw, Anthony D.. Space access system with reusable booster. USP2014088800934.
  20. Reckzeh, Daniel; Goelling, Burkhard; Lengers, Matthias. Surface element for an aircraft, aircraft and method for improving high-lift generation on a surface element. USP2016039272772.
  21. Bilanin Alan J. ; Quackenbush Todd R.. System and method of vortex wake control using vortex leveraging. USP2000036042059.
  22. Shmilovich, Arvin; Yadlin, Yoram; Clark, Roger W.; Leopold, Donald H.. Systems and methods for destabilizing an airfoil vortex. USP2010027661629.
  23. Lewis, Michael S.; Meserole, Jere S.; Dunn, Michael J.; Tillotson, Brian J.. Systems and methods for tracing aircraft vortices. USP2010037686253.
  24. Lewis, Michael S.; Meserole, Jere S.; Dunn, Michael J.; Tillotson, Brian J.. Systems and methods for tracing aircraft vortices. USP2013028376284.
  25. Lewis, Michael S.; Meserole, Jere S.; Dunn, Michael J.; Tillotson, Brian J.. Systems and methods for tracing aircraft vortices. USP2011017874522.
  26. Eaton, John K.; Matalanis, Claude. Translating active Gurney flap to alleviate aircraft wake vortex hazard. USP2010067740206.
  27. Remington Paul J. ; Coney William B. ; Curtis Alan Robert Douglas. Use of flow injection and extraction to control blade vortex interaction and high speed impulsive noise in helicopters. USP2001096283406.
  28. Reckzeh, Daniel; Goelling, Burkhard; Lengers, Matthias. Wing for an aircraft, aircraft and method for reducing aerodynamic drag and improving maximum lift. USP2016039278753.
  29. Irving,Jan; Davies,Robert. Wing tip device. USP2007107275722.