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특허 상세정보

Airfoil

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B64C-005/08    B64C-023/06   
미국특허분류(USC) 244/199 ; 244/46 ; 244/218
출원번호 US-0669350 (1984-11-08)
발명자 / 주소
인용정보 피인용 횟수 : 47  인용 특허 : 1
초록

This invention is an improved airfoil in the form of a plurality of controllable winglets which are used to reduce the stall characteristics of wing tips and to give them better lift capabilities. This is accomplished through relatively simple and yet highly efficient controls.

대표
청구항

An improved lifting surface comprising: a plurality of airfoil shaped winglets mounted spanwise along the outer tip portion of said lifting surface such that the leading edges of said winglets are generally normal to the free air stream; said winglets being tapered from their root chords to their tip chords to provide a degree of tip flow relief; said winglets being staggered outward in a spanwise direction such that the tip of each trailing winglet extends beyond the tip of each leading winglet whereby each trailing winglet will absorb energy from the w...

이 특허를 인용한 특허 피인용횟수: 47

  1. Guida, Nicholas R.. Active winglet. USP2014048684315.
  2. Guida, Nicholas R.. Active winglet. USP2017099764825.
  3. Mau, Knut; Grünewald, Michael; Reichenberger, Johann; Borchers, Ingo; Drobietz, Roger. Aerodynamic flap of an aircraft having a device which influences the flap vortex. USP2012018096513.
  4. Chankaya, Kurt M.; Maines, Brant H.. Aerodynamic force sensing apparatus. USP2018059963223.
  5. Van Dam Cornelis P. (Davis CA). Aircraft stall-spin entry deterrent system. USP1988104776542.
  6. Devenyi, Gabor. Aircraft wing having continuously rotating wing tips. USP2017049623960.
  7. Dizdarevic, Faruk; Dizdarevic, Mithad. Airlifting surface division. USP2003066578798.
  8. Cordier, Stephane; Briancon-Marjollet, Laurence. Bearing structure with reduced tip vortex. USP2003086607168.
  9. Guida, Nicholas R.. Controllable airflow modification device periodic load control. USP2017029567066.
  10. Sankrithi, Mithra M. K. V.; Frommer, Joshua B.. Controllable winglets. USP2010067744038.
  11. Schaber, Sven. Device for the generation of aerodynamic vortices and also a regulating flap and wing with a device for the generation of aerodynamic vortices. USP2014078783623.
  12. McLean, James D.. Efficient wing tip devices and methods for incorporating such devices into existing wing designs. USP2005056886778.
  13. Khorrami, Mehdi R.; Choudhan, Meelan M.. Flap edge noise reduction fins. USP2015099132909.
  14. Fairchild, Mark D.. Flight control method and apparatus to produce induced yaw. USP2010087780120.
  15. Fairchild,Mark D.. Flight control method and apparatus to produce induced yaw. USP2009037503527.
  16. Long, Donald James. Fluid dynamic body having escapelet openings for reducing induced and interference drag, and energizing stagnant flow. USP2014028651813.
  17. Stuhr, Victor K.. Integrated wingtip extensions for jet transport aircraft and other types of aircraft. USP2013108544800.
  18. Guida, Nicholas R.. Multiple controllable airflow modification devices. USP2015109162755.
  19. Guida, Nicholas R.. Multiple controllable airflow modification devices. USP2018059969487.
  20. Roman, Dino L.; Vassberg, John C.; Friedman, Douglas M.; Malachowski, Adam P.; Vegter, Christopher A.. Performance-enhancing winglet system and method. USP2015018936219.
  21. Takanori Tsukahara JP; Masahiro Obukata JP. Rotary blade of helicopter. USP2002106467732.
  22. McMahon, Timothy James; Kruse, John Scott; Kehrer, Adam L.. Rotatable wing tip joint and method of making same. USP2018019868517.
  23. Gratzer, Louis B.. Split blended winglet. USP20190410252793.
  24. Gratzer, Louis B.. Split blended winglet. USP20180610005546.
  25. Gratzer, Louis B.. Split blended winglet. USP2016049302766.
  26. Gratzer, Louis B.. Split blended winglet. USP2015028944386.
  27. Gratzer, Louis B.. Split blended winglet. USP20181010106247.
  28. Gratzer, Louis B.. Split spiroid. USP2017029580170.
  29. Gratzer, Louis B.. Split spiroid. USP2015059038963.
  30. Gratzer, Louis B.. Split spiroid. USP2016099434470.
  31. Roman, Dino L.; Vassberg, John C.; Friedman, Douglas M.; Malachowski, Adam P.; Vegter, Christopher A.. Split winglet system. USP2017059637226.
  32. Sakurai, Seiya; Jones, Kelly T.; Fox, Stephen J.; Fox, Bruce R.; Bennett, Nicholas I.; Good, Mark S.. Swing tip assembly rotation joint. USP2014048708286.
  33. Bussom, Richard; McVeigh, Michael A.; Narducci, Robert P.; Zientek, Thomas A.. System and method for improved rotor tip performance. USP2010077757992.
  34. Bussom,Richard; McVeigh,Michael A.; Narducci,Robert P.; Zientek,Thomas A.. System and method for improved rotor tip performance. USP2007097264200.
  35. Rinn Aaron ; Khamly Somphone ; Hornick David ; Obrigkeit Matthew ; Kota Sridhar. Variable camber airfoil. USP2000046045096.
  36. Ulrich La Roche CH; Lucas La Roche CH. Wing comprising a distal wing grid. USP2002086431499.
  37. Irving,Jan; Davies,Robert. Wing tip device. USP2007107275722.
  38. Wright, Christopher; Chu, James K.; Himisch, Jan. Wing tip device. USP2015119193445.
  39. Wright, Christopher; Chu, James K.; Himisch, Jan. Wing tip device. USP2015129199727.
  40. Wright, Christopher; Chu, James K.; Himisch, Jan. Wing tip device. USP2015059033282.
  41. Zaman, AbuMuhammed A.. Wing tip device for an aircraft wing. USP2016129511850.
  42. Gratzer, Louis B.. Wing tip with optimum loading. USP2016079381999.
  43. La Roche Ulrich,CHX. Wing with a wing grid as the end section. USP1998105823480.
  44. Roman, Dino L.; Vassberg, John C.; Friedman, Douglas M.; Malachowski, Adam P.; Vegter, Christopher A.. Winglet system. USP2016059346537.
  45. Roman, Dino L.; Vassberg, John C.; Friedman, Douglas M.; Malachowski, Adam P.; Vegter, Christopher A.. Winglet system and method. USP2015129216817.
  46. Roman, Dino L.; Vassberg, John C.; Friedman, Douglas M.; Malachowski, Adam P.; Vegter, Christopher A.. Winglet system having upper and lower winglet. USP2016109463871.
  47. Malachowski, Adam P.; Chaney, Stephen R.; Ebner, Norman K.; LeDoux, Stephen T.. Winglets with recessed surfaces, and associated systems and methods. USP2012038128035.