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특허 상세정보

Venturi enhanced airfoil

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B64C-021/04   
미국특허분류(USC) 244/121 ; 244/23R ; 244/207 ; 244/208
출원번호 US-0426536 (1989-10-24)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 16  인용 특허 : 5

A basic airfoil has its operating performance improved by incorporating one or more apertures in the airfoil adjacent its trailing edge. These apertures extend from the upper surface of the airfoil down through to the lower surface of the airfoil. The entry port and the exit port of these apertures has a greater circumference than that of the throat circumference which is intermediate thereto. This structure forms a venturi having a vertical axis. Spaced below the throat of the aperture are a plurality of air nozzles that communicate with an air plenum c...


An aircraft comprising: an airfoil, said airfoil defining an upper surface, a lower surface, a leading edge, and a trailing edge, said airfoil further defining a slot extending therethrough between said upper surface and said lower surface, said slot thus defining an entrance port in said upper surface and an exit port in said lower surface, said exit port being located farther aft on said airfoil than said entrance port, said slot being located adjacent to said tailing edge and defined by a throat portion, a converging portion extending from said entran...

이 특허를 인용한 특허 피인용횟수: 16

  1. Steer, David. Aerodynamic lifting system. USP2017119815545.
  2. Grove,Graham Bond. Aerofoil arrangement. USP2008127461820.
  3. Palmer Steven D.. Apparatus for measuring lift forces based upon differential pressure between surfaces of an aircraft. USP1998045737222.
  4. Zha, Gecheng. Fluid systems that include a co-flow jet. USP20181010106246.
  5. Zha, Gecheng. Fluid systems that include a co-flow jet. USP20190410252789.
  6. Evulet, Andrei. Fluidic propulsive system and thrust and lift generator for aerial vehicles. USP20190210207812.
  7. Christoph, Kessler. Helicopter having collision avoidance apparatus. USP2013068473189.
  8. Malvestuto, Jr., Frank S.. High-lift, low-drag, stall-resistant airfoil. USP2004056732972.
  9. Palmer Steven D.. Method and apparatus for flight parameter monitoring and control. USP2001066253126.
  10. Palmer Steven D.. Method and apparatus for measuring forces based upon differential pressure between surfaces of an aircraft. USP1999126002972.
  11. Palmer Steven D.. Method for flight parameter monitoring and control. USP1998085796612.
  12. Janecek, Thomas F.. Self-cooling fan assembly. USP2016069360020.
  13. Chan, Andre S.; Hendriks, Ferdinand; Takemori, Keiichi. System and apparatus for mass-balanced spoiler in disk storage devices. USP2011128077430.
  14. Duane C. McCormick ; Daniel L. Gysling. Tangentially directed acoustic jet controlling boundary layer. USP2002056390418.
  15. Miller Robin Mihekun ; Tunkel Roman N.. Vibration-driven acoustic jet controlling boundary layer separation. USP2000086109566.
  16. Tanaka, Motofumi; Osako, Toshiki; Shioda, Kazunori; Matsuda, Hisashi; Uchida, Tatsuro; Shimura, Naohiko. Vortex generating apparatus and vortex generating method. USP20181010086926.