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특허 상세정보

Airfoil system for cruising flight

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B64C-023/06    B64C-009/00    B64C-021/10   
미국특허분류(USC) 244/204; 244/203; 244/213
출원번호 US-0138709 (2008-06-13)
등록번호 US-8882049 (2014-11-11)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Warmbier, Andrea Z.
인용정보 피인용 횟수 : 1  인용 특허 : 12
초록

An airfoil system includes an airfoil body and at least one flexible strip. The airfoil body has a top surface and a bottom surface, a chord length, a span, and a maximum thickness. Each flexible strip is attached along at least one edge thereof to either the top or bottom surface of the airfoil body. The flexible strip has a spanwise length that is a function of the airfoil body's span, a chordwise width that is a function of the airfoil body's chord length, and a thickness that is a function of the airfoil body's maximum thickness.

대표
청구항

1. An airfoil system, comprising; an airfoil body having a flap coupled to a main body at a flap separation, wherein said main body comprises a top surface and a bottom surface, and said airfoil having a chord length C, a span S, and a maximum thickness TMAX;a flexible strip comprising at least one edge and having a spanwise length that is approximately 0.5S to 1.0S, a chordwise width that is approximately 0.05C to 0.2C, and a thickness that is approximately 0.01TMAX to 0.05TMAX;wherein said flexible strip is attached to said top surface along said at le...

이 특허에 인용된 특허 (12)

  1. Maclean Brian J. (Daniel WY) Carpenter Bernard F. (Littleton CO) Misra Mohan S. (Golden CO). Adaptive control surface using antagonistic shape memory alloy tendons. USP1997095662294.
  2. Ferguson Stuart R. (Beverly Hills CA). Air foil having adjustable shape. USP1986044582278.
  3. Ashill Patrick R. (Bedfordshire GB2) Fulker John L. (Bedfordshire GB2). Airfoil with variable geometry expansion surface. USP1995075433404.
  4. Phillips, Warren F.. Apparatus and method for reducing induced drag on aircraft and other vehicles. USP2005116970773.
  5. Dunne, James P.; Pitt, Dale M.; Kilian, Kevin J.; White, Edward V.. Apparatus for variation of a wall skin. USP2003076588709.
  6. Cheung, Ken C. K.; Sullivan, Christopher J.. Conformable skin element system for active vortex control. USP2009087578483.
  7. Volk, John A.. Control system for alleviating a gust load on an aircraft wing. USP2004076766981.
  8. Sankrithi Mithra M. K. V. (417 Bellevue Way SE. #400 Bellevue WA 98004). Flexible flap for an airfoil. USP1984074460138.
  9. Greenhalgh Samuel (Doylestown PA). Lift enhancement device. USP1994085335886.
  10. McKillip ; Jr. Robert M.. Remotely controllable actuating device. USP1998055752672.
  11. Vijgen Paul M. H. W. (Hampton VA) Howard Floyd G. (Hampton VA) Bushnell Dennis M. (Wicomico VA) Holmes Bruce J. (Newport News VA). Serrated trailing edges for improving lift and drag characteristics of lifting surfaces. USP1992025088665.
  12. Vassberg, John Charles; Gregg, III, Robert D.. Variable trailing edge geometry and spanload control. USP2005016843452.