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Auxiliary power unit exhaust duct with muffler incorporating an externally replaceable acoustic liner

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B64D-033/02    B64D-033/00   
미국특허분류(USC) 181/214; 181/217; 181/210; 181/211; 181/212; 181/216; 181/241; 181/243; 244/053.B; 244/001.N; 060/766; 060/752; 060/796
출원번호 US-0999887 (2004-11-30)
등록번호 US-7350619 (2008-04-01)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Ingrassia Fisher & Lorenz
인용정보 피인용 횟수 : 6  인용 특허 : 31
초록

Methods and apparatus are provided for an exhaust duct having an externally replaceable acoustic liner. The exhaust duct includes a forward section that is configured to be axially coupled with a bulkhead collar on the aircraft, a body section that is coupled to the forward section and a stinger cap that includes the replaceable acoustic liner. The replaceable acoustic liner is configured to be slideably received by the body section.

대표
청구항
▼

We claim: 1. An exhaust duct for use in an aircraft, comprising: a forward section configured to be axially coupled with the aircraft; a body section coupled to the forward section; and a stinger cap with an acoustic liner, the acoustic liner configured to be slideably received by the body section, and replaceable from outside the aircraft. 2. The exhaust duct of claim 1, wherein the acoustic liner is formed from acoustically permeable material. 3. The exhaust duct of claim 2, wherein the acoustically permeable material is feltmetal or perfmetal. ...

이 특허에 인용된 특허 (31)

  1. Moffat, George H.; Stubbs, Gene Woodard; Voll, William Albert. Acoustic muffler for turbine engine. USP2004026695094.
  2. Secrest Lynn Thomas ; Tetley Paul Antony. Acoustic silencer nozzle. USP2000096112850.
  3. Joy John R. (Brighton MI). Aircraft auxiliary power unit. USP1988074759178.
  4. Hogeboom William H. ; Bielak Gerald W.. Aircraft engine acoustic liner and method of making same. USP2001046209679.
  5. Reysa Gary D. ; Swenson Lynn A. ; Hutchison Robert A. ; Fung Kenny L.. Auxiliary power and thrust unit. USP2001066247668.
  6. Chien Kuo-Feng (c/o Hung Hsing Patent Service Center P.O. Box 55-1670 Taipei (10477) TWX). Car silencer for absorbing sound and exhaust pollutants. USP1993115266755.
  7. Rodgers Colin (San Diego CA) Vershure ; Jr. Roy W. (Escondido CA). Combined auxiliary and emergency power unit. USP1989094864812.
  8. Batey J. Gary. Core flow expansion chamber device system for reduction of jet turbine engine noise. USP1998065758488.
  9. Liston Laurence D. N. ; Schoepf Joseph L.. Detachable integral aircraft tailcone and power assembly. USP2001106308915.
  10. Liston Laurence D. N. ; Schoepf Joseph L. ; Royalty Charles Michael. Detachable integral aircraft tailcone and power assembly. USP2001066244539.
  11. Liston Laurence D. N. ; Schoepf Joseph L. ; Royalty Charles Michael. Detachable integral aircraft tailcone and power assembly. USP2000036039287.
  12. Ross David F. (Scottsdale AZ) Royalty Charles M. (Tempe AZ). Dual flow turbine engine muffler. USP1992115162620.
  13. Napier James C. (San Diego CA). Dual purpose apparatus for turbine engine exhaust noise and anti-surge air noise reduction. USP1992035097656.
  14. Glahn, J. Axel; Sahm, Michael K.. Engine integrated auxiliary power unit. USP2005116968701.
  15. Kawamata, Noriyuki; Koishi, Hiroaki; Kurata, Kou. Exhaust apparatus for vehicle. USP2005116968922.
  16. Hill, Alan; Sixsmith, Paul. Exhaust gas nozzle for fan. USP2004016676503.
  17. Modi, Roberto; Bonciani, Luciano; Ceccherini, Gianni. Flame tube or “liner” for a combustion chamber of a gas turbine with low emission of pollutants. USP2005116966187.
  18. Dixon James T. (Jupiter FL) Glickstein Marvin R. (North Palm Beach FL). Integrated auxiliary power system. USP1994115363641.
  19. Torkelson Delbert W. (Claremore OK). Jet engine noise suppression system. USP1990034909346.
  20. Lemire, Jacques; Olsen, Kirk W.; DePriest, Francis J.; Law, Thomas R.; Whiteford, Gerald P.; Bachmeyer, Paul J.. Mounting assembly for an aircraft auxiliary power unit and method. USP2003066581874.
  21. D'Amico ; Jr. John ; Newman Jeffrey M.. Muffler packing method with injection of cartrided continuous filament fiberglass. USP2000046053276.
  22. 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.
  23. Anderson Robert Elon ; Parente Charles A.. One-piece engine inlet acoustic barrel. USP1998065768778.
  24. Clay Moran ; Rodney Lee Asher. Refractive wave muffler. USP2002076415887.
  25. Flintham,Stuart A.. Serviceable muffler. USP2006097100736.
  26. Hoy Robert W. (Warsaw IN). Sound attenuator. USP1983124421202.
  27. Soligny Marcel R. (Chevilly Larue FRX) Duponchel Jean-Pierre D. J. (Dammarie les Lys FRX) Hoch Rene G. (La Rochette FRX). Thrust reverser and silencer assembly of turbojet engines. USP1982104353516.
  28. Sheoran, Yogendra Y.; Brown, Daniel V.; Edmonds, David H.. Tortuous path quiet exhaust eductor system. USP2003096615576.
  29. Lillibridge Robert W. ; McGuire Kenneth R. ; Phillips Edward J. ; Matthews Eugene James. Turbofan engine with reduced noise. USP1998015706651.
  30. Lillibridge Robert W. ; McGuire Kenneth R. ; Phillips Edward J. ; Matthews Eugene James. Turbofan engine with reduced noise. USP1998085791138.
  31. Herman Gerald T. (Seattle WA). Turbojet engine nozzle for attenuating core and turbine noise. USP1979024137992.

이 특허를 인용한 특허 피인용횟수: 6

  1. Francisco, Jay M.; Napier, James C.. Arrangement for maintaining flow to an air inlet of an auxiliary power unit assembly. USP2014058733694.
  2. Napier, James C.; Francisco, Jay M.. Low noise exhaust ducting system. USP2013028371521.
  3. Francisco, Jay M.; Napier, James C.; Sapiro, Dan G.; Hagshenas, Behzad. Mixed-flow exhaust silencer assembly. USP2009087578369.
  4. Heeb, Gerald. Muffler including a resonator slide-in unit. USP2015069057313.
  5. Allford, Peter. Panel assembly including deformable seal. USP2011027891671.
  6. Baarck, Jenny N.; Krayenvenger, Daren; Proscia, William; Jones, Christopher D.. Turbine engine tailcone resonator. USP2009067552796.

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