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특허 상세정보

Apparatus and method for the control of trailing wake flows

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B64C-023/00   
미국특허분류(USC) 244/199; 244/207
출원번호 US-0784067 (2004-02-20)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Hughes Law Firm, PLLC
인용정보 피인용 횟수 : 15  인용 특허 : 19
초록

A system and method for dissipating vortices that form at the wingtips on aircraft and from other airfoils. A jet air stream is discharged in a location at or proximate to the outer end portion of the airfoil into the vortex flow, and the jet air stream is moved cyclically back and forth. The cyclic movement can be at lower or higher frequencies to alleviate at least in part intensity of the vortex or accelerate instability of the vortex which leads to vortex dissipation.

대표
청구항

We claim: 1. An airfoil vortex dissipating system comprising: a) an airfoil having a leading edge, a trailing edge, an outer end portion, an upper aerodynamic surface, a lower aerodynamic surface, a spanwise axis, a forward to rear chord axis, and an alignment reference plane coincident with the spanwise axis and the chord axis, said airfoil being characterized in that when the airfoil is functioning to create aerodynamic lift, a vortex is created at said outer end portion of the airfoil, with said vortex having vortex core axis, a main circumferential ...

이 특허에 인용된 특허 (19)

  1. Hassan Ahmed A. ; Straub Friedrich K. ; Domzalski David B. ; Kennedy Dennis K.. Active blowing system for rotorcraft vortex interaction noise reduction. USP1998095813625.
  2. Huang, Xingzhong. Active vortex control with moveable jet. USP2003126668638.
  3. Taylor Robert M. (Vienna VA). Aerodynamic surface tip vortex attenuation system. USP1992105158251.
  4. Okinaga Tomioka JP. Aircraft installed snow remover. USP2002046378807.
  5. Johnstone Edmund H. (82 Salzburg Blvd. Apt. G Columbus IN 47201). Aircraft wing vortex deflector. USP1976083974986.
  6. Roland Stuff DE; Heinrich Vollmers DE. Aircraft with means for a premature breakdown of the wing vortex pair. USP2002076422518.
  7. Haney William R.. Airfoil vortex attenuation apparatus and method. USP1998095806807.
  8. Schmidt Robert N. ; Shaw Greg S.. Fluid flow control devices. USP1998055755408.
  9. Nosenchuck Daniel M. (Mercerville NJ) Brown Garry L. (Princeton NJ). Lifting body with reduced-strength trailing vortices. USP1996025492289.
  10. Erwin John R. (Paradise Valley AZ). Method and apparatus for controlling tip vortices. USP1976123997132.
  11. Huenecke, Klaus. Method and apparatus for reducing trailing vortices in the wake of an aircraft. USP2003026513761.
  12. McCarthy Peter T. (134 Park St. #5 Buffalo NY 14201). Tip vortex generation technology for creating a lift enhancing and drag reducing upwash effect. USP1997065634613.
  13. 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.
  14. Griswold ; II Roger W. (Ben Franklin Rd. Old Lyme CT 06371). Vortex alleviating wing tip. USP1984104477042.
  15. Yuan Shao Wen (2021 Highboro Way Falls Church VA 22043). Vortex control. USP1976023936013.
  16. Gutmark Ephraim J. ; Guillot Stephen A.. Vortical lift control over a highly swept wing. USP2000106138955.
  17. Ransick Thomas F. (Rockford IL). Wingtip turbine. USP1992095150859.
  18. Patterson ; Jr. James C. (Yorktown VA). Wingtip vortex dissipator for aircraft. USP1976103984070.
  19. Gerhardt Heinz Adolf. Wingtip vortex impeller device for reducing drag and vortex cancellation. USP1999075918835.

이 특허를 인용한 특허 피인용횟수: 15

  1. Shmilovich, Arvin; Yadlin, Yoram; Clark, Roger; Leopold, Donald. Apparatus and method for the control of trailing wake flows. USP2009107597289.
  2. Shmilovich, Arvin; Carralero, Michael A.. Autonomous power generation unit for auxiliary system on an airborne platform. USP2012078232706.
  3. 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.
  4. Khorrami, Mehdi R.; Choudhan, Meelan M.. Flap edge noise reduction fins. USP2015099132909.
  5. Long, Donald James. Fluid dynamic body having escapelet openings for reducing induced and interference drag, and energizing stagnant flow. USP2014028651813.
  6. Silich, Bert A.. Method and system for controlling fluid flow in relation to a foil and harnessing energy therefrom. USP2012048152109.
  7. Boer, Michael Frederick; Hoffe, Anthony Charles. Method for reducing in flight wake vortices and an aircraft wingtip arrangement used in such method. USP2014118894018.
  8. Hutcheson,Florence V.; Brooks,Thomas F.. Noise reduction of aircraft flap. USP2009027484930.
  9. Parikh, Pradip G.. Passive removal of suction air for laminar flow control, and associated systems and methods. USP2011017866609.
  10. Bensilum, Stéphane Emmanuel Daniel; Bertucchi, Jean; Mabboux, Gaétan Jean. Pylon for fixing an aircraft engine having unducted pusher propellers. USP2017069682783.
  11. Khorrami, Mehdi R.. Reactive orthotropic lattice diffuser for noise reduction. USP2016019227719.
  12. Lewis, Michael S.; Meserole, Jere S.; Dunn, Michael J.; Tillotson, Brian J.. Systems and methods for tracing aircraft vortices. USP2010037686253.
  13. Lewis, Michael S.; Meserole, Jere S.; Dunn, Michael J.; Tillotson, Brian J.. Systems and methods for tracing aircraft vortices. USP2013028376284.
  14. Lewis, Michael S.; Meserole, Jere S.; Dunn, Michael J.; Tillotson, Brian J.. Systems and methods for tracing aircraft vortices. USP2011017874522.
  15. McCaffrey, Michael G.. Systems and methods involving aerodynamic struts. USP2011108029234.