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특허 상세정보

Exhaust silencer with baffles

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B64C-001/40    B64C-023/00   
미국특허분류(USC) 244/001N; 244/058
출원번호 US-0094179 (2011-04-26)
등록번호 US-8596568 (2013-12-03)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Kinney & Lange, P.A.
인용정보 피인용 횟수 : 1  인용 특허 : 35
초록

An exhaust silencer assembly includes an exhaust duct and an exhaust silencer. The exhaust silencer is disposed about the exhaust duct and has a plurality of solid baffles and at least one perforated baffle The exhaust silencer assembly is disposed downstream of an auxiliary power unit and at least partially attenuates the downstream noise of the combustion gases that result from operation of the auxiliary power unit. In one embodiment, at least one of the plurality of solid baffles is disposed to extend axially between generally radially extending solid...

대표
청구항

1. An exhaust silencer assembly comprising: an exhaust duct;an exhaust silencer disposed about the exhaust duct, the exhaust silencer including a plurality of solid baffles and at least one perforated baffle; andan auxiliary power unit arranged in communication with the exhaust duct, and wherein the at least one perforated baffle is disposed at a length along the exhaust duct from the auxiliary power unit that is 100% to 150% of an inner diameter of the exhaust duct,wherein one of the plurality of solid baffles connects to the at least one perforated baf...

이 특허에 인용된 특허 (35)

  1. Kempton,Andrew J; Baker,Nicholas J; McAlpine,Alan; Astley,Jeremy. Acoustic liner for gas turbine engine. USP2006107124856.
  2. Moffat, George H.; Stubbs, Gene Woodard; Voll, William Albert. Acoustic muffler for turbine engine. USP2004026695094.
  3. Plemons ; Jr. R. J. (1126 Rockledge Rd. Attalla AL 35954). Adjustable sound attenuating device. USP1993025183976.
  4. Albero, Jose; Lents, Charles E.; Sahm, Michael K.; Welch, Richard C.. Aircraft architecture with a reduced bleed aircraft secondary power system. USP2004036704625.
  5. Hoag Michael S. ; Plank Steven K.. Auxiliary power unit passive cooling system. USP2000076092360.
  6. Thompson,Robert G.; Hagshenas,Bezhad. Auxiliary power unit with an oil-free compressor. USP2006087093447.
  7. Tolman Alan G. (Phoenix AZ). Broad band acoustic attenuator. USP1981014244441.
  8. Man-Chun Tse CA. Butterfly valve noise suppressor. USP2002086439540.
  9. Thompson,Robert G.. Combined power main engine start system. USP2006097104072.
  10. Ross David F. (Scottsdale AZ) Lyon Craig A. (Mesa AZ). Compact muffler apparatus and associated methods. USP1987024645032.
  11. Williams,Nicholas A.. Composite muffler for use with airborne auxiliary power unit. USP2008107431125.
  12. Kim Jeung T. (Schenectady NY) Imam Imdad (Schenectady NY). Compressor noise attenuation using branch type resonator. USP1990054927342.
  13. Napier, James C.; Johnson, Wayne A.; Mickaelian, Stanley C.. Detection of oil in turbine engine bleed air. USP2005106957569.
  14. Ross David F. (Scottsdale AZ) Royalty Charles M. (Tempe AZ). Dual flow turbine engine muffler. USP1992115162620.
  15. Napier James C. (San Diego CA). Dual purpose apparatus for turbine engine exhaust noise and anti-surge air noise reduction. USP1992035097656.
  16. Tomren Raymond H. (Scottsdale AZ). Duct lining. USP1983124421455.
  17. Brown,Daniel V.; Asplund,Kyle D.; Michalski, Jr.,Joseph W.. Eccentric exhaust muffler for use with auxiliary power units. USP2008057367424.
  18. Sheoran Yogendra Y. (Scottsdale AZ) Schmittenberg Marc (Phoenix AZ) Lyon Craig A. (Mesa AZ) Royalty Charles M. (Tempe AZ) Kenzler Kurt T. (Chandler AZ) Davis Thomas W. (Tempe AZ). Exhaust eductor cooling system. USP1993115265408.
  19. Gardner James R. (Gilbert AZ) Wright William L. (Phoenix AZ) Hough Joseph W. (Phoenix AZ). Inlet guide vane dewhistler. USP1994125373691.
  20. Linder Charles G. (Chandler AZ). Intake vortex whistle silencing apparatus and methods. USP1984034436481.
  21. Linder Charles G. (Chandler AZ). Intake vortex whistle silencing apparatus and methods. USP1985074531356.
  22. George E. Wilmot, Jr. ; Gregory M. Ott. Integrated thermal management and coolant system for an aircraft. USP2002076415595.
  23. Blackner Anthony M.. Jet engine and method for reducing jet engine noise by reducing nacelle boundary layer thickness. USP2000086094907.
  24. Hirt William J. (Bellevue WA) Caldwell Jack H. (Kent WA) Stachowiak Claude R. (Renton WA) Rushwald Ira B. (Seattle WA) Kumasaka Henry A. (Seattle WA). Jet engine noise suppressor. USP1990124979587.
  25. Thompson ; Jr. Robert S. (Brighton MI). Multi-spool turbofan engine with turbine bleed. USP1997115687563.
  26. Campbell Thomas A. (Seattle WA) Dummeyer David M. (Snohomish WA) Yahyavi Mohammad (Bellevue WA). Passive cooling device and method for cooling an auxiliary power unit on an airplane. USP1997085655359.
  27. Dionne, Luc. Passive cooling system for auxiliary power unit installation. USP2005096942181.
  28. Hehmann ; Horst W. W. ; Kraft ; Robert E.. Phased treatment noise suppressor for acoustic duct applications. USP1978054091892.
  29. Yu, Jia; Chien, Eugene W.. Sound-absorbing exhaust nozzle center plug. USP2010087784283.
  30. Lwasa, Ronald M.; Chow, Allen D.. Thermally compliant APU exhaust duct arrangements and associated systems and methods. USP2010087765784.
  31. Sheoran, Yogendra Y.; Brown, Daniel V.; Edmonds, David H.. Tortuous path quiet exhaust eductor system. USP2003096615576.
  32. Napier James C. (San Diego CA) Thompson Robert G. (San Diego CA). Turbine inlet silencer. USP1992085140819.
  33. Napier James C. (San Diego CA) Thompson Robert G. (San Diego CA). Turbine inlet silencer. USP1996025491308.
  34. Lillibridge Robert W. ; McGuire Kenneth R. ; Phillips Edward J. ; Matthews Eugene James. Turbofan engine with reduced noise. USP1998015706651.
  35. Lillibridge Robert W. ; McGuire Kenneth R. ; Phillips Edward J. ; Matthews Eugene James. Turbofan engine with reduced noise. USP1999085943856.

이 특허를 인용한 특허 피인용횟수: 1

  1. Todorovic, Predrag. Gas turbine exhaust cone. USP2014078776946.