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특허 상세정보

Airfoil with variable geometry expansion surface

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B64C-003/44   
미국특허분류(USC) 244/200 ; 244/204 ; 244/219
출원번호 US-0190052 (1994-05-25)
우선권정보 GB-0016787 (1991-08-01)
국제출원번호 PCT/GB92/01396 (1992-07-28)
§371/§102 date 1994May2 (1994May2)
국제공개번호 WO-9302915 (1993-02-18)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 20  인용 특허 : 0

A wing, or similar article of airfoil section, has a variable geometry surface for the active control of shock strength and transonic wave drag. In one embodiment, the wing has a region of distensible skin (4) aft of the line of maximum section, which extends along the span of the wing in those areas that experience drag. Pressure means (10, 20, 30) within the wing outwardly deflect the distensible region and produce a local bulge in the expansion surface. This bulge induces pre-shock compression and reduces the effect of the shock. The bulge is retracte...


A shock reducing device for an article of airfoil section, said airfoil section having an expansion surface during transonic airflow conditions, said device comprising means for locally increasing the steady state thickness of the article in comparison with said article in an undeformed state, wherein said increase in thickness is located in a region of the expansion surface of the article, said region being centered aft of the line of maximum section of the article but forward of the trailing edge and extending along at least part of the span of the art...

이 특허를 인용한 특허 피인용횟수: 20

  1. Wood, Norman. Aerodynamic structure with asymmetrical shock bump. USP2018029896193.
  2. Wood, Norman. Aerodynamic structure with non-uniformly spaced shock bumps. USP2016059334045.
  3. Wood, Norman. Aerodynamic structure with series of shock bumps. USP2016109463870.
  4. Shams, Qamar A.; Liu, Tianshu. Airfoil system for cruising flight. USP2014118882049.
  5. Hassan, Ahmed A.; Osborne, Bradley A.; Schwimley, Scott; Billman, Garry; Billman, legal representative, Mary. Dynamic bumps for drag reduction at transonic-supersonic speeds. USP2011098016245.
  6. Dorsett Kenneth Merle ; Stewart Christopher Sean. Inflatable structures to control aircraft. USP2000016015115.
  7. Xi, Fengfeng; Finistauri, Allan Daniel; Moosavian, Amin. Morphing wing for an aircraft. USP2018019856012.
  8. Hemmelgarn, Christopher Douglas; Pelley, Bryan Michael. Passive adaptive structures. USP2015059033283.
  9. Hemmelgarn, Christopher Douglas; Pelley, Bryan Michael. Passive adaptive structures. USP2013048418967.
  10. Hemmelgarn, Christopher Douglas; Pelley, Bryan Michael; Cable, Kristin Marie; Kirby, Brandon Charles. Passive adaptive structures. USP2014038678324.
  11. Burchard, Alexander. Profiled wing unit of an aircraft. USP2005036869050.
  12. Wood, Norman. Shock bump. USP2012118302912.
  13. Leedy, Glenn. System for probing, testing, burn-in, repairing and programming of integrated circuits. USP2005056891387.
  14. Motosko, III, Stephen. Variable air foil and spoiler. USP2012028113470.
  15. Rinn Aaron ; Khamly Somphone ; Hornick David ; Obrigkeit Matthew ; Kota Sridhar. Variable camber airfoil. USP2000046045096.
  16. Dawson, Mark H.; Wallace, Jack. Variable length wind turbine blade having transition area elements. USP2012068206107.
  17. Baker, Jonathon P.; Jackson, Kevin Lee; Mayda, Edward A.; van Dam, Cornelis P.. Wind turbine with deployable air deflectors. USP2012068192161.
  18. van Dam, Cornelis P.; Jackson, Kevin Lee. Wind turbine with gust compensating air deflector. USP2012098267654.
  19. Nagel, Alexander; Bauminger, Shlomo. Wing and devices therefor. USP2015069061752.
  20. Law, Barnaby. Wing unit, in particular spar box, for forming aerodynamically active surfaces of an aircraft, in particular airfoils, horizontal tail units or rudder units of a plane. USP2009107607617.