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특허 상세정보

Aerofoil arrangement

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B64C-003/44    B64C-003/00   
미국특허분류(USC) 244/219; 244/207; 416/240; 416/DIG.5
출원번호 US-0477257 (2002-05-09)
등록번호 US-7461820 (2008-12-09)
우선권정보 NZ-511661(2001-05-11)
국제출원번호 PCT/NZ02/000090 (2002-05-09)
§371/§102 date 20040617 (20040617)
국제공개번호 WO02/092428 (2002-11-21)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Dann, Dorfman, Herrell and Skillman, P.C.
인용정보 피인용 횟수 : 1  인용 특허 : 30
초록

Upper surface (13) of an aerofoil (or rotor blade) is provided with nozzles or slots (14, 16) at leading portion (15) and trailing portion (17) to assist attachment of airflow by discharging gas towards trailing edge (11). Gas discharged may be heated, eg coming from rocket-type combustion chambers within the aerofoil. The aerofoil may be adjustable between high profile (as shown) and low profile (for supersonic flight) using jacks that pivot sections of upper surface (13) at leading and trailing edges (10-11).

대표
청구항

I claim: 1. An aerofoil having a chord length and a depth and which is adjustable between a high profile configuration for subsonic flow and a low profile configuration for supersonic flow, the aerofoil having an initial angle of attack to oncoming airflow of at least about 22 degrees, the aerofoil including a leading edge which generates a subsonic leading edge breakaway flow in the high profile configuration that comes from beneath the leading edge, an upper surface having a leading portion inclined away from the leading edge and a trailing portion re...

이 특허에 인용된 특허 (30)

  1. Hassan Ahmed A. ; Straub Friedrich K. ; Domzalski David B. ; Kennedy Dennis K.. Active blowing system for rotorcraft vortex interaction noise reduction. USP1998095813625.
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  8. Grotz Charles A. (Seattle WA). Boundary layer scoop for the enhancement of Coanda effect flow deflection over a wing/flap surface. USP1979034146197.
  9. Statkus Frank D. (Woodinville WA). Continuous skin, variable camber airfoil edge actuating mechanism. USP1982094351502.
  10. Byron David E. (Casselberry FL). Cooling method and apparatus for wings and other fuselage components. USP1990104962903.
  11. Chandraker, Amrit Lal. Cylindrical blades for axial steam turbines. USP2005126979178.
  12. Runge Thomas M. (2501 Galewood Pl. Austin TX 78703). Fan jet engine bypass air delivery system for blown wing aircraft lift augmentation device. USP1982044326686.
  13. Widnall Sheila E. (Lexington MA) Widnall William S. (Lexington MA) Gorgen William E. (Wayzata MN) Evernham Jeffrey T. (Carmel IN). Flexible tailored elastic airfoil section. USP1993015181678.
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  16. Amelio Armand F. (Yonkers NY) Fischer ; Jr. William C. (Monroe CT). Mechanically actuated slot for circulation control rotor. USP1990104966526.
  17. Bartoe ; Jr. Otto E. (Boulder CO). Method and structure for airfoil thrust and lift control. USP1983074391424.
  18. Hirt William J. (Bellevue WA) Grotz Charles A. (Seattle WA). Method of and apparatus for enhancing Coanda flow attachment over a wing and flap surface. USP1977044019696.
  19. Daniel P. Ivkovich, Jr. ; Andrew J. Skoog ; Jane A. Murphy ; Thomas W. Rentz. Method of forming a multilayer ceramic coating. USP2002116485590.
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  28. Knight Mark J. (Bridgnorth GB2). Variable camber stator vane. USP1994055314301.
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