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특허 상세정보

Airfoil tip vortex control

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B64C-023/00   
미국특허분류(USC) 244/40R ; 244/41 ; 244/91 ; 416/23
출원번호 US-0648247 (1976-01-12)
발명자 / 주소
인용정보 피인용 횟수 : 37  인용 특허 : 0
초록

Device for diminishing tip vortices in an aircraft. For the purpose of diminishing the tip vortices generated by aircraft there are provided retractable foils at or near the airfoil, as wing, tips in question and projecting upwardly and/or downwardly therefrom. The operation of the retractable foils is satisfactory if such foils are parallel to the centerline of the aircraft but it is preferable if such foils are angled slightly with respect thereto, such as if the leading edge of the upper foil is angled approximately 10°inwardly toward the fuselage of ...

대표
청구항

For an airfoil of an aircraft having a longitudinal centerline, wherein the airfoil includes an upper surface, a bottom surface and an end, the improvement comprising: a collapsible foil oriented substantially perpendicular to one said surface of said airfoil at least adjacent said end thereof and aligned at least approximately parallel to the longitudinal centerline of said aircraft; and controllable power means for selectably extending said foil into an extended position and collapsing said foil to a fully collapsed position, said collapsible foil in s...

이 특허를 인용한 특허 피인용횟수: 37

  1. Guida, Nicholas R.. Active winglet. USP2014048684315.
  2. Guida, Nicholas R.. Active winglet. USP2017099764825.
  3. Osborne, Bradley A.; Schwimley, Scott L.. Aerodynamic fan control effector. USP2011087997538.
  4. Speer, Stephen R.. Aircraft winglet design having a compound curve profile. USP20180810053209.
  5. Fort F. Felker. Aircraft with elliptical winglets. USP2002116484968.
  6. Roland Stuff DE; Heinrich Vollmers DE. Aircraft with means for a premature breakdown of the wing vortex pair. USP2002076422518.
  7. Werthmann, Vitalij; Kordt, Michael. Concept of a variable winglet for lateral load reduction for combined lateral and vertical load reduction, and for improving the performance of means of locomotion. USP2014068757555.
  8. Guida, Nicholas R.. Controllable airflow modification device periodic load control. USP2017029567066.
  9. Groeger Theodore O. (2 Collamore Cir. West Orange NJ 07052). Convertible airplane. USP1979084165846.
  10. Larssen, Jon V.; Calkins, Frederick T.. Deployable flap edge fence. USP2010077753316.
  11. Larssen, Jon V.; Calkins, Frederick T.. Deployable flap edge fence. USP2013068469315.
  12. Lisy Frederick J. ; Schmidt Robert N.. Deployable flow control device. USP2000086105904.
  13. Jenkins Michael W. (Marietta GA). Flight control mechanism for airplanes. USP1981014247063.
  14. Reighart ; II ; Ray R.. Free vortex aircraft. USP1978064093160.
  15. Prince, Troy S; Kolacinski, Richard; Patel, Mehul. Hierarchical closed-loop flow control system for aircraft, missiles and munitions. USP2016049310166.
  16. Prince, Troy S; Kolacinski, Richard; Patel, Mehul. Hierarchical closed-loop flow control system for aircraft, missiles and munitions. USP20181110139209.
  17. McCarthy,Peter T.. High efficiency tip vortex reversal and induced drag reduction. USP2009037497403.
  18. Hieu T. Ngo ; Lisa E. Barlow. Lifting surface with active variable tip member and method for influencing lifting surface behavior therewith. USP2002056394397.
  19. Guida, Nicholas R.. Multiple controllable airflow modification devices. USP2015109162755.
  20. Guida, Nicholas R.. Multiple controllable airflow modification devices. USP2018059969487.
  21. Narramore, Jimmy Charles. Retractable vortex generator. USP2011027878457.
  22. Gratzer, Louis B.. Split blended winglet. USP20190410252793.
  23. Gratzer, Louis B.. Split blended winglet. USP20180610005546.
  24. Gratzer, Louis B.. Split blended winglet. USP2016049302766.
  25. Gratzer, Louis B.. Split blended winglet. USP2015028944386.
  26. Gratzer, Louis B.. Split blended winglet. USP20181010106247.
  27. Gratzer, Louis B.. Split spiroid. USP2017029580170.
  28. Gratzer, Louis B.. Split spiroid. USP2015059038963.
  29. Gratzer, Louis B.. Split spiroid. USP2016099434470.
  30. May, Peter. System and method for reducing airfoil vortices. USP2011118061661.
  31. Bilanin Alan J. ; Quackenbush Todd R.. System and method of vortex wake control using vortex leveraging. USP2000036042059.
  32. Ross James C. ; Storms Bruce L.. Tip fence for reduction of lift-generated airframe noise. USP1998045738298.
  33. Wright, Christopher; Chu, James K.; Himisch, Jan. Wing tip device. USP2015119193445.
  34. Wright, Christopher; Chu, James K.; Himisch, Jan. Wing tip device. USP2015129199727.
  35. Wright, Christopher; Chu, James K.; Himisch, Jan. Wing tip device. USP2015059033282.
  36. Gratzer, Louis B.. Wing tip with optimum loading. USP2016079381999.
  37. Zenobi Thomas J. (Perkasie PA) Ayoub Peter (Bryn Mawr PA). Yaw stabilization for aircraft ejection seats. USP1984094470565.