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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-033/02    B64D-033/00   
미국특허분류(USC) 244/053.B
출원번호 US-0789827 (2004-02-27)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Ingrassia Fisher &
인용정보 피인용 횟수 : 20  인용 특허 : 21

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 ...


We claim: 1. An inlet door assembly for reducing noise from an auxiliary power unit (APU) contained within an aircraft having an aft end, the inlet assembly comprising: a duct having an inlet port, an outlet port, and a flow passage therebetween through which APU noise propagates; and a door rotationally mounted on the duct and configured to selectively rotate between at least a first position, in which at least a portion of the door deflects the APU noise in a first direction toward the aircraft aft end, and a second position, in which at least a porti...

이 특허에 인용된 특허 (21)

  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. Amelio Armand F. (Yonkers NY). Engine air particle separator for use with gas turbine engine. USP1981124304094.
  8. Ben-Porat Avi (Norwalk CT). Fail-safe, anti-icing system for aircraft engines. USP1983084397431.
  9. Bartlett Eric R.,CAX. Fan shroud air door assembly. USP2000086106228.
  10. Mohn Larry W. (Edmonds WA). Flow deflector for fluid inlet. USP1979114174083.
  11. Holland ; Charles L. ; Nicoloff ; George B.. Inflatable air inlet duct. USP1978104121606.
  12. Sheoran Yogendra Y.. Inlet vortex bustor and ice protector for auxiliary power units. USP2001076264137.
  13. Blackner Anthony M.. Jet engine and method for reducing jet engine noise by reducing nacelle boundary layer thickness. USP2000086094907.
  14. Smith David R. (West Haven CT) Amelio Armand F. (New Milford CT). Low observable engine air inlet system. USP1997125697394.
  15. Amelio Armand F. (Yonkers NY) Barnard Richard S. (Monroe CT) Manzolli James J. (Seymour CT). Low observable engine inlet system. USP1997125694763.
  16. 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.
  17. Vanderleest Siebold (Seattle WA). Scoop and inlet for auxiliary power units and method. USP1983124418879.
  18. Hirtsiefer Artur (Neunkirchen-Seelscheid DEX). Support for holding a closing element. USP1996085546705.
  19. 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.
  20. Tedstone, Donald J.. Vane fairing for inertial separator. USP1982084346860.
  21. Eric D. Swanger. Ventilation unit for vehicles. USP2002026347484.

이 특허를 인용한 특허 피인용횟수: 20

  1. Kastell, Dirk; Roering, Sebastian; Noriega, Wilson Willy Casas. Air duct for supplying ambient air in an aircraft. USP2014058721406.
  2. Parikh, Pradip G.; Willie, Robert H.. Air inlet and method for a highspeed mobile platform. USP2011017861968.
  3. Braeutigam, Ralf. Air inlet combining a filter and a bypass device for use with a turbine engine. USP2016029254921.
  4. Light, Stacey H.; Minick, Alan B.. Aircraft fluid diversion inlet louver. USP2012128322981.
  5. Lo, Charles. Bi-metallic actuator for selectively controlling air flow between plena in a gas turbine engine. USP2016029267390.
  6. Parikh, Pradip G.. Combined cabin air and heat exchanger RAM air inlets for aircraft environmental control systems, and associated methods of use. USP2010127849702.
  7. Sheoran, Yogendra Y.; Michalski, Jr., Joseph W.; Asplund, Kyle D.. Diffusing air inlet door assembly. USP2009107600714.
  8. Baumann, Joerg. Emergency ram air inlet valve of an aircraft. USP2013058439061.
  9. Teia Dos Santos Mendes Gomes, Luis Daniel. Flow guiding system, turbo engine with a flow guiding system and method for manufacturing a flow guiding system. USP2017089719424.
  10. Eichholz, Johannes; Beier, Jens; Solntsev, Alexander; Schmidt, Ruediger. Fresh air inlet for an aircraft. USP2015038973867.
  11. Klimpel, Frank; Schmidt, Rüdiger. Method and system for emergency ventilation of an aircraft cabin in the case of a leak in the area of an air mixer. USP2016029266601.
  12. Petrac, Markus. Method for controlling the internal pressure in an aircraft. USP2014118876040.
  13. Dyer, Richard S.; Kaemming, Thomas A.; Horne, III, Samuel E.. Multi-path inlet for aircraft engine. USP2012078210474.
  14. Duong, Loc Q.; Gupta, Shiv C.; Hu, Xiaolan. Radial compressor of asymmetric cyclic sector with coupled blades tuned at anti-nodes. USP2012058172510.
  15. Duong, Loc Q.; Gupta, Shiv C.; Hu, Xiaolan. Radial compressor with blades decoupled and tuned at anti-nodes. USP2012058172511.
  16. Parikh, Pradip G.; Hastings, E. Dale. Ram air inlets for use with aircraft environmental control systems and other aircraft and non-aircraft systems. USP2009117618006.
  17. Francisco, Jay M.. Rotating auxiliary power unit air inlet door. USP2012018096498.
  18. Lo, Charles; Alford, Ted; Anderson, Morris. System for directing air flow to a plurality of plena. USP2015069045998.
  19. Schlinker, Robert Hans; Napier, James C.; Polak, David R.; Lin, Ray-Sing; Liljenberg, Scott A.; Jones, Anthony C.. System for reducing compressor noise. USP2012058167540.
  20. Parikh, Pradip G; Atkey, Warren A. Tandem air inlet apparatus and method for an airborne mobile platform. USP2009127624944.