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특허 상세정보

Hush kit for jet engine

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F02K-003/02   
미국특허분류(USC) 60/2262 ; ; 60/2261 ; ; 60/262 ; ; 60/725
출원번호 US-0499112 (1995-07-06)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 20  인용 특허 : 18

A hush kit for jet aircraft engine includes a respaced inlet guide vane to provide an increased space between the fixed guide vanes of the inlet and the rotating fan blades of the fan connected to the core engine, a mixer for mixing hot exhaust gas from the core engine with colder bypass fan air, and an acoustic barrel to reduce the noise generated by the mixed air flowing through the thrust reverser downstream of the core engine. The acoustic barrel includes an outer imperforate layer, an inner perforate layer and a multi-cellular core sandwiched thereb...


A noise reduction assembly for a jet engine having a core engine generating axial exhaust gas flow through a downstream end thereof, an inlet having a plurality of fixed guide vanes at an upstream end of the core engine, an outer casing defining an annular bypass duct surrounding the core engine, a fan positioned downstream from the inlet for generating axial fan air flow through the bypass duct, a thrust reverser for selectively converting axial flow of exhaust gas and fan air into reverse thrust, and a tail pipe disposed to axially receive and discharg...

이 특허에 인용된 특허 (18)

  1. Tolman Alan G. (Phoenix AZ). Broad band acoustic attenuator. USP1981014244441.
  2. Dhoore Louis G. (Seattle WA) Schultz William H. (Bellevue WA). Combination bulk absorber-honeycomb acoustic panels. USP1980114235303.
  3. Wiseman Albert D. (Wilmington OH). Engine noise suppression kit for the nacelles of a jet aircraft. USP1988064751979.
  4. Kirker, Timothy J.. Exhaust flow mixers and nozzles. USP1985104543784.
  5. Torkelson Delbert W. (Catoosa OK) Jannetta Thomas J. (Tulsa OK) Nikkanen John P. (West Hartford CT) Webb Daniel E. (Wethersfield CT) Zysman Steven H. (Middletown CT) Colletti William D. (Cromwell CT). Fixed geometry mixer/ejector suppression system for turbofan aircraft engines. USP1995085440875.
  6. Torkelson Delbert W. (Claremore OK). Jet engine noise suppression system. USP1990034909346.
  7. Eiler Donald C. (South Windsor CT). Lobe mixer for gas turbine engine. USP1983084401269.
  8. Batey John G. (Cordova TN) Burrets Park W. (Memphis TN) Grewe William F. (Memphis TN) Whitestone Bruce G. (Germantown TN) Yerger Mark D. (Collierville TN). Noise reduction kit for jet turbine engines. USP1992075127602.
  9. Birbragher Fernando (Miami FL). Noise reduction nacelle. USP1988074759513.
  10. Carr Thomas W. (Chula Vista CA) Rose Philip M. (Chula Vista CA). Quiet nacelle system and hush kit. USP1988024723626.
  11. Carr Thomas W. (Chula Vista CA) Rose Philip M. (Chula Vista CA) Marsh Alan H. (Huntington Beach CA). Quiet nacelle system and hush kit. USP1989044817756.
  12. Shuttleworth, Richmond G.; Snyder, Gene R.; Ballou, Richard P.. Sound absorbing structure. USP1983054384634.
  13. Mathews Douglas C. (Marlborough CT) Peracchio Aldo A. (South Windsor CT). Sound absorbing structure for a gas turbine engine. USP1984064452335.
  14. Bonneau Hilaire (Boucherville CAX). Sound suppressor liner. USP1984024433751.
  15. Forestier Alexandre (Vaux le Penil FRX) Pluquet Alain A. (Melun FRX) Rosa Roger A. (Morangis FRX) Tabet Mansour (Melun FRX) Teysseyre Pierre M. (Juvisy sur Orge FRX). Soundproofing for a gas pipe, in particular for the fan jet of a turbojet, and equipment for its fabrication. USP1984054449607.
  16. Wagenfeld Robert E. (New York NY). System for reducing aircraft noise and hush kit. USP1989064836469.
  17. Herman Gerald T. (Seattle WA). Turbojet engine nozzle for attenuating core and turbine noise. USP1979024137992.
  18. Laskody Jerome R. (Carnation WA). Vortex mixers for reducing the noise emitted by jet engines. USP1980084217756.

이 특허를 인용한 특허 피인용횟수: 20

  1. Chiou, Song; Yu, Jia; Hubert, Claude; Layland, Michael. Acoustic barrel for aircraft engine nacelle including crack and delamination stoppers. USP2010097798285.
  2. Alkabie,Hisham. Aerodynamic trip to improve acoustic transmission loss and reduce noise level for gas turbine engine. USP2007067234304.
  3. Vincent, Thomas Alain Christian. Central body for a turbojet exhaust channel, turbojet. USP2011027886543.
  4. Bouty, Eric Jean-Louis; Dravet, Alain; Le Docte, Thierry Jacques Albert; Riou, Georges Jean Xavier; Vincent, Thomas Alain Christian. Central body of a turbojet nozzle. USP2011027891195.
  5. Alkabie, Hisham. HPT aerodynamic trip to improve acoustic transmission loss and reduce noise level for auxiliary power unit. USP2009057533534.
  6. Baude, Pierre Michel; Jouanchicot, Didier Jacques Andre. Helicopter gas turbine engine with sound level lowered by ejector hush kitting. USP2011087993099.
  7. Anderson, Jack H.. Jet nozzle mixer. USP2005026854260.
  8. Anderson,Jack H. Jet nozzle mixer. USP2007087251927.
  9. Anderson,Jack H.. Jet nozzle mixer. USP2006097111448.
  10. Anderson,Jack H.. Jet nozzle mixer. USP2006037017331.
  11. Shah, Parthiv N.. Methods and apparatus for deployable swirl vanes. USP2017029567867.
  12. Sawyers-Abbott, Nigel David; Foster, Joseph P.. Nacelle mounted latching system. USP20180910066510.
  13. Lata Perez, Jes?s Mar?a. Noise reduction conduit for static components in aircraft engines. USP2005086935834.
  14. Marley, Scott. Non-handed thrust reverser for installation on handed aircraft gas turbine propulsion engines. USP2013058439305.
  15. Chiou, Song; Yu, Jia; Hubert, Claude; Layland, Michael. Reinforcement members for aircraft propulsion system components configured to address delamination of the inner fixed structure. USP2015049016042.
  16. Dong,Paulynn; Geck,Kellan P.; Mathis,David M.; Hall,James A.; Gentile,David P.; Zonneveld,Jennifer L.. Shroud for an air turbine starter. USP2007067232289.
  17. Lair, Jean-Pierre. Thrust reverser nozzle for a turbofan gas turbine engine. USP2011098015797.
  18. Beutin,Bruno; Dos Santos,Nelson; Fert,Jeremy; Lacorre,Fabienne; Picard,Jean Louis. Turbojet having a large bypass ratio. USP2008107430852.
  19. Osman, Medhat. Ultra hush exhaust system (UHES). USP20181210156207.
  20. Shah, Parthiv N.. Variable geometry aircraft pylon structure and related operation techniques. USP2014108857761.