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특허 상세정보

Controllable diffuser for an air intake of an aircraft

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B64D-033/02   
미국특허분류(USC) 137/151 ; 244/53B
출원번호 US-0807162 (1985-12-09)
우선권정보 DE-3444822 (1984-12-08)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 12  인용 특허 : 2

A diffuser for an air intake of an aircraft has an inlet and an outlet, both with variable cross-sectional flow areas. At least one wall section of a diffuser defining flow channel is movable by one or separate lever linkage systems for varying the inlet and outlet cross-sectional flow areas. A control circuit, preferably a closed loop control circuit responsive to a control program, makes sure that optimal flow cross-sectional areas are maintained at the inlet and outlet of the diffuser to optimize the operation of the diffuser.


A controllable diffuser for an air intake of an aircraft, comprising an air flow channel including an air inlet port, first means (11) for varying an inlet cross-sectional flow area (A1) of said air inlet port, an air outlet port, and second means (21, 22) for varying an outlet cross-sectional flow area (A2) of said air outlet port, said second means (21, 22) forming a backwardly facing step (23) in said outlet cross-sectional flow area (A2) for stabilizing a controlled boundary layer separation at said outlet cross-sectional flow area (A2).

이 특허를 인용한 특허 피인용횟수: 12

  1. Kastell, Dirk; Roering, Sebastian; Noriega, Wilson Willy Casas. Air duct for supplying ambient air in an aircraft. USP2014058721406.
  2. Alvarez, Franck; Chancerelle, Emeric; Porte, Alain; Prat, Damien. Air intake arrangement for a vehicle, in particular an aircraft. USP2016089422062.
  3. Leblanc, Andr?. Gas turbine inlet flow straightener. USP2005116959552.
  4. Koncsek Joseph L. ; Marrs Kenneth J.. Internal compression supersonic engine inlet. USP1999035881758.
  5. Koncsek, Joseph L.; McMahon, Steven L.; Bultman, Myron L.; Sangwin, Michael L.. Method and apparatus for controlling aircraft inlet air flow. USP2003106634595.
  6. Gruensfelder Cynthia Ann ; Wille Robert Henry. Mission adaptive inlet. USP2000076089505.
  7. Gruensfelder Cynthia Ann ; Wille Robert Henry. Mission adaptive inlet. USP2001076260567.
  8. Parikh, Pradip G.. Passive removal of suction air for laminar flow control, and associated systems and methods. USP2011017866609.
  9. Falempin Francois (Saint Michel sur Orge FRX). Symmetrical, two dimensional, supersonic and hypersonic air intake for the combustion air of an aircraft engine. USP1991045004187.
  10. Gupta, Anurag; Graziosi, Paolo; Mani, Ramani. System and method for actively changing an effective flow-through area of an inlet region of an aircraft engine. USP2003126655632.
  11. Lewis William J. (Somerset GB2) Woodward Clifford S. (Bristol GB2). Variable area aircraft air intake. USP1988114782657.
  12. Porte, Alain; Prat, Damien. Ventilating air intake arrangement with mobile closing device. USP2014028651925.