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Cylindrical wing tip with helical slot

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B64D-027/02   
미국특허분류(USC) 244/199
출원번호 US-0474879 (2002-04-09)
우선권정보 FR-0004998 (2001-04-11)
국제출원번호 PCT/FR02/01232 (2004-04-14)
§371/§102 date 20040414 (20040414)
국제공개번호 WO02/08349 (2002-10-24)
발명자 / 주소
대리인 / 주소
    Young &
인용정보 피인용 횟수 : 24  인용 특허 : 9
초록
▼

A device having the form of a cylindrical spiral cavity and/or incorporating a helicoidal slot, making it possible to reduce induced drag and marginal swirl (vortex) and increase drag/lift ratio. Integrated with the wingtip or articulated on the wingtip, it can be adapted for all airfoils, in particular the wings of airplanes and gliders, helicopter blades and the tips or tractor or pusher airscrews, wind-powered generator blades and for surface vessels or submarines where lift or direction is used in triple axis (vertical, horizontal, and yaw) displacem...

대표
청구항
▼

1. A device for mounting on a wingtip, the device comprising:a generally cylindrical hollow body having a helicoidal slot in a side thereof and a side that is arranged and adapted to be attached to a wingtip; and said hollow body having an ovoid bevel cut extending toward a leading edge of said hollow body opposite the side of said hollow body that is arranged and adapted to be attached to a wingtip. 2. The device of claim 1, wherein said hollow body is arranged and adapted to be attached to a wingtip parallel to or on an airfoil chord of the wingtip.3. ...

이 특허에 인용된 특허 (9)

  1. Haney William R. (6507 Foxboro Dr. Mayfield Village OH 44143). Air foil providing vortex attenuation. USP1994035297764.
  2. Boyle ; Jr. James J. (2957 Longleat Woods Sarasota FL 34235). Aircraft. USP1994075332177.
  3. Erwin John R. (Paradise Valley AZ). Method and apparatus for controlling tip vortices. USP1976123997132.
  4. Jerry E. Carlow. Mobius-like joining structure for fluid dynamic foils. USP2002116474604.
  5. Egolf T. Alan ; Wake Brian E.. Ovate loop for rotary-wing blades. USP2001076260809.
  6. Gratzer Louis B. (2201 3rd Ave. #2004 Seattle WA 98121). Spiroid-tipped wing. USP1992045102068.
  7. Truax, Philip P.; Miller, Daniel N.; Hamstra, Jeffrey W.; Yagle, Patrick J.. System and method for actively manipulating and controlling fluid flow over a surface. USP2004016682021.
  8. Griswold ; II Roger W. (Ben Franklin Rd. Old Lyme CT 06371). Vortex alleviating wing tip. USP1984104477042.
  9. Patterson ; Jr. James C. (Yorktown VA). Wingtip vortex propeller. USP1985084533101.

이 특허를 인용한 특허 피인용횟수: 24

  1. Harman, Jayden David; Penney, Kimberly; Lees, Paul; Koelman, Onno. Axial flow fan. USP2012128328522.
  2. Alford, Jr., Lionel D.; Clayman, Jr., Gary J.. Blended winglet. USP2010017644892.
  3. Dickman, Clifford C.. Directional control for a helicopter. USP2013108561938.
  4. Harman, Jayden David. Fluid circulation system. USP2011017862302.
  5. Long, Donald James. Fluid dynamic body having escapelet openings for reducing induced and interference drag, and energizing stagnant flow. USP2014028651813.
  6. Harman, Jayden David. Fluid flow control device. USP2010097802583.
  7. Harman, Jayden David. Fluid flow control device. USP2014018631827.
  8. Harman, Jayden David. Fluid flow controller. USP2011077980271.
  9. Harman, Jayden David. Fluid flow controller. USP2013028381870.
  10. Harman, Jayden David. Fluid flow controller. USP2014058733497.
  11. Harman, Jayden David. Heat exchanger. USP2010107814967.
  12. Harman,Jayden David. Heat exchanger. USP2007107287580.
  13. Harman,Jayden David. Heat exchanger. USP2006087096934.
  14. Harman, Jayden David. Housing for a centrifugal fan, pump, or turbine. USP2010117832984.
  15. Harman,Jayden David. Housing for a centrifugal fan, pump, or turbine. USP2008087416385.
  16. Shah, Parthiv N.. Methods and apparatus for deployable swirl vanes. USP2017029567867.
  17. Harman,Jayden David; Penney,Kimberly. Rotor. USP200806D570996.
  18. Harman,Jayden David; Penney,Kimberly. Rotor. USP200806D570999.
  19. Harman, Jayden David. Sound attenuator. USP2010017644804.
  20. Shah, Parthiv N.. Variable geometry aircraft pylon structure and related operation techniques. USP2014108857761.
  21. Harman, Jayden David. Vortex ring generator. USP2010087766279.
  22. Harman, Jayden David. Vortex ring generator. USP2010037673834.
  23. Harman,Jayden David. Vortical flow rotor. USP2009027488151.
  24. Hugues, Christian. Wingtip device for the tip of a wing, blade of a wind generator or marine generator for reducing or even eliminating marginal swirl. USP2013118585371.

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