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특허 상세정보

Dual action inlet door and method for use thereof

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B64D-027/00   
미국특허분류(USC) 244/053.B; 244/058
출원번호 US-0299147 (2005-12-08)
등록번호 US-7461814 (2008-12-09)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Ingrassia, Fisher & Lorenz, P.C.
인용정보 피인용 횟수 : 9  인용 특허 : 22

An inlet door assembly and method for reducing noise from an auxiliary power unit (APU) contained within an aircraft housing is provided. The inlet assembly includes an inlet duct, an actuator, and a door. The inlet duct is configured to extend from the auxiliary power unit to the aircraft housing and has a sidewall that defines a flow passage through which APU noise propagates. The actuator is disposed at least partially within the inlet duct. The door coupled to the actuator. The actuator is also configured to selectively rotate the door between at lea...


The invention claimed is: 1. An inlet door assembly for reducing noise from an auxiliary power unit (APU) contained within an aircraft having a forward end and an aft end, the inlet assembly comprising: a duct having a sidewall including a forward wall and an aft wall and defining an inlet port, an outlet port, and a flow passage therebetween through which APU noise propagates; a first door rotationally mounted on the forward wall of the duct and having an inner surface facing the duct flow passage and an outer surface forming an exterior of the aircraf...

이 특허에 인용된 특허 (22)

  1. Lord Thomas J. (Dayton OH). Air inlet control for aircraft or the like. USP1980054203566.
  2. Horikawa Makoto (Nagoya JPX). Air intake system of an aircraft. USP1990024899958.
  3. Mark D. Ralston. Aircraft auxiliary air intake with ram and flush opening door. USP2002026349899.
  4. Kim, John J.; Choi, Won Wook; Rohrlick, Myles A.. Apparatus and method for forming an air curtain for use with an aircraft. USP2003056565035.
  5. Genssler Hans-Peter (Munich DEX) Lotter Kurt (Riemerling DEX). Apparatus for improving aerodynamic flow conditions at the air intake of gas turbine engines. USP1987044655413.
  6. Reysa Gary D. ; Swenson Lynn A. ; Hutchison Robert A. ; Fung Kenny L.. Auxiliary power and thrust unit. USP2001066247668.
  7. Bennett Charles O. (Tacoma WA). Compression-sealed nacelle inlet door assembly. USP1984104474344.
  8. Amelio Armand F. (Yonkers NY). Engine air particle separator for use with gas turbine engine. USP1981124304094.
  9. Ben-Porat Avi (Norwalk CT). Fail-safe, anti-icing system for aircraft engines. USP1983084397431.
  10. Bartlett Eric R.,CAX. Fan shroud air door assembly. USP2000086106228.
  11. Noiseux,Noel; Bernard,Martin; Whiting,Michael Owen. Fire shield method. USP2007067232097.
  12. Mohn Larry W. (Edmonds WA). Flow deflector for fluid inlet. USP1979114174083.
  13. Holland ; Charles L. ; Nicoloff ; George B.. Inflatable air inlet duct. USP1978104121606.
  14. Sheoran Yogendra Y.. Inlet vortex bustor and ice protector for auxiliary power units. USP2001076264137.
  15. Blackner Anthony M.. Jet engine and method for reducing jet engine noise by reducing nacelle boundary layer thickness. USP2000086094907.
  16. Smith David R. (West Haven CT) Amelio Armand F. (New Milford CT). Low observable engine air inlet system. USP1997125697394.
  17. Amelio Armand F. (Yonkers NY) Barnard Richard S. (Monroe CT) Manzolli James J. (Seymour CT). Low observable engine inlet system. USP1997125694763.
  18. Johnson, Richard N.; Nelson, Paul E.. Method and apparatus for controlling aircraft airflow. USP2003106634597.
  19. Harvell John K. ; Michalski ; Jr. Joseph W. ; Freeman Craig A.. Method and apparatus for controlling the inlet duct leading to an auxiliary power unit. USP2001086272838.
  20. Vanderleest Siebold (Seattle WA). Scoop and inlet for auxiliary power units and method. USP1983124418879.
  21. Bardagi Thierry Pascal,FRX ; Jourdain Gerard Ernest Andre,FRX. System for the admission of air into a working section of a gas turbine engine. USP2000076082669.
  22. Tedstone, Donald J.. Vane fairing for inertial separator. USP1982084346860.