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특허 상세정보

Perforated skin structure for laminar-flow systems

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B64C-021/06    B64C-021/00   
미국특허분류(USC) 244/209
출원번호 US-0511930 (2003-04-17)
국제출원번호 PCT/US03/012008 (2003-04-17)
§371/§102 date 20041018 (20041018)
국제공개번호 WO03/089295 (2003-10-30)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 16  인용 특허 : 12
초록

The outer skin (100) of an aerodynamic body ( 40) has perforations (200) arranged in particular patterns in respective spanwise extending groups or bundles (250). Each perforation is preferably a micro-slot with a length of 100 to 3000 μm and a width of 50 to 250 μm. Air is sucked through the micro-slots from the boundary layer flowing over the outer skin, to achieve boundary layer control. In each bundle, the pattern, size, orientation, and other parameters of the micro-slots are designed to achieve mutual destructive interference of flow dist...

대표
청구항

The invention claimed is: 1. A laminar flow control apparatus comprising: an outer skin having a plurality of perforations communicating therethrough, and having an outer surface adapted to be exposed to an airflow including a boundary layer airstream flowing along said outer surface; and a suction system communicating with said perforations on a side of said outer skin opposite said outer surface and adapted to suck air from the boundary layer airstream through said perforations; wherein flow disturbances are created in the boundary layer airstream due...

이 특허에 인용된 특허 (12)

  1. Anxionnaz Rene (8 ; RUE Nicolas Chuquet 75-Paris FR). Device for regulating and recovering the boundary layer over the surface of a body such as an aircraft in flight. USP1976043951360.
  2. Coffinberry George A. (West Chester OH). Gas turbine engine fan duct base pressure drag reduction. USP1992085141182.
  3. Kraenzien Peter,DEX. Leading edge construction for an aerodynamic surface and method of making the same. USP2000046050523.
  4. Kiknadze Gennady Iraklevich,RUX ; Gachechiladze Ivan Alexandrovich,RUX ; Oleinikov Valery Grigorievich,RUX. Method and apparatus for controlling the boundary or wall layer of a continuous medium. USP2000096119987.
  5. DeCoux Steven P. (Long Beach CA). Method and apparatus for laminar flow control. USP1994055316032.
  6. Kamiadakis George Em ; Du Yiging. Method and apparatus for reducing turbulent drag. USP2001126332593.
  7. Josef Mertens DE; Henri Lajain DE. Method of fabricating leading edge nose structures of aerodynamic surfaces. USP2002076415510.
  8. Horstman Raymond H. (Auburn WA). Perforated wing panel with variable porosity. USP1993115263667.
  9. Patel, Mehul P.; DiCocco, Jack M; Prince, Troy. Reconfigurable porous technology for fluid flow control and method of controlling flow. USP2005036866233.
  10. Meister Juergen,DEX ; Pfennig Juergen,DEX ; Held Werner,DEX. Rudder assembly with a controlled boundary layer control for an aircraft. USP1999055899416.
  11. Pfennig Juergen,DEX ; Meister Juergen,DEX. Suction device for boundary layer control in an aircraft. USP2001046216982.
  12. Breit Hubert,DEX. Suction generator system in an aircraft for maintaining a laminar boundary flow. USP1999035884873.

이 특허를 인용한 특허 피인용횟수: 16

  1. Zhu, Xiaoyi. Aircraft generating a lift from an interior thereof. USP2014128910903.
  2. Rupp, Peter L.; Parikh, Pradip G.; Ng, Lian L.; Vijgen, Paul M.. Apparatus and methods for extending hybrid laminar flow control. USP2016119487288.
  3. Sheaf, Christopher T. J.; Hussain, Zahid M.. Boundary layer energiser. USP2013018348199.
  4. Knight, Glenn A; Maguire, Alan R; Robinson, Daniel; Bostock, George; Wilson, Mark J. Compressor tip injector. USP20181210145387.
  5. Gerber, Martin. Device for boundary layer suction and composite component therefor. USP2014088800915.
  6. Zhong, Xiaolin; Fong, Kahei Danny; Wang, Xiaowen. Hypersonic laminar flow control. USP20180910071798.
  7. Koppelman, Henry J.; Gregg, Paul S.. Laminar flow panel. USP2014078783624.
  8. Crouch, Jeffrey D.; Ng, Lian L.; Sutanto, Mary I.. Laminar flow surfaces with selected roughness distributions, and associated methods. USP2010127850126.
  9. Kruckenberg, Teresa M.; Pujar, Vijay V.. Lightning strike protection. USP2013108561934.
  10. Kruckenberg, Teresa M.; Hill, Valerie A.; Mazany, Anthony Michael; Young, Eloise; Chiou, Song. Low density lightning strike protection for use in airplanes. USP2015028962130.
  11. Atassi, Oliver V.. Nacelle with porous surfaces. USP2015038974177.
  12. Kruckenberg, Teresa M.; Hill, Valerie A.. Nacelles and nacelle components containing nanoreinforced carbon fiber composite material. USP2010117832983.
  13. Parikh, Pradip G.. Passive removal of suction air for laminar flow control, and associated systems and methods. USP2011017866609.
  14. Reckzeh, Daniel; Goelling, Burkhard; Lengers, Matthias. Surface element for an aircraft, aircraft and method for improving high-lift generation on a surface element. USP2016039272772.
  15. Melton, Patrick Benedict; Chila, Ronald James; Khan, Abdul Rafey; Antoniono, Carolyn Ashley. System and method for flow control in gas turbine engine. USP2014128919127.
  16. Reckzeh, Daniel; Goelling, Burkhard; Lengers, Matthias. Wing for an aircraft, aircraft and method for reducing aerodynamic drag and improving maximum lift. USP2016039278753.