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Dual flow turbine engine muffler

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F01N-001/02    F01N-001/14   
미국특허분류(USC) 181/220 ; 181/250 ; 181/262
출원번호 US-0442378 (1989-11-28)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 36  인용 특허 : 0
초록

An elongate exhaust gas muffler for a turbine engine includes a foraminous central exhaust duct which is circumscribed along its length by a plurality of tuned dissipative and reactive noise attenuation chambers. At an inlet end of the muffler an annular secondary flow inlet is defined about the central exhaust duct and opens to the first sound attenuation chamber. A secondary flow of pressurized bleed air is receivable into the first attentuation treatment in the muffler.

대표
청구항
▼

A dual flow muffler for attenuating turbine engine noise, said muffler comprising: an exhaust duct extending axially through said muffler and defined by a foraminous duct wall having an inlet and an outlet for respectively receiving and discharging turbine engine exhaust gasses; a casing circumscribing said duct wall; a plurality of annular baffle walls disposed between said foraminous duct wall and said casing, said annular baffle walls axially spaced apart to define an axial array of tuned resonant noise attenuation cavities disposed about said foramin...

이 특허를 인용한 특허 피인용횟수: 36

  1. Gilcreest, Mark D.; Sleath, Trevor G.; Gelzer, Daniel F.; Windels, Merlin C.. Acoustically treated exhaust centerbody for jet engines and associated methods. USP2011098025122.
  2. Napier, James C.. Air inlet noise attenuation assembly. USP2015119194293.
  3. Ettere Mark. Aspiration device for vehicle engine exhaust system. USP1999065916136.
  4. Nguyen, Phuong H.; Sikora, Joseph A.; Campbell, Thomas A.. Automatic control systems for aircraft auxiliary power units, and associated methods. USP2011118061650.
  5. Nguyen, Phuong H.; Sikora, Joseph A.; Campbell, Thomas A.. Automatic control systems for aircraft auxiliary power units, and associated methods. USP2011027891605.
  6. Nguyen,Phuong H.; Sikora,Joseph A.; Campbell,Thomas A.. Automatic control systems for aircraft auxiliary power units, and associated methods. USP2008047364116.
  7. Williams,Nicholas A.. Auxiliary power unit exhaust duct with muffler incorporating an externally replaceable acoustic liner. USP2008047350619.
  8. Tretow, Paul R.; Chambers, David S.; Willie, Robert H.. Auxiliary power unit inlet apparatus and methods. USP2017049611050.
  9. Williams,Nicholas A.. Composite muffler for use with airborne auxiliary power unit. USP2008107431125.
  10. Campbell, Thomas A.; Chambers, David S.; Willie, Robert H.; Rust, Charles W.. Dual flow APU inlet and associated systems and methods. USP2009117611093.
  11. Campbell,Thomas A.; Chambers,David S.; Willie,Robert H.; Rust,Charles W.. Dual flow APU inlet and associated systems and methods. USP2008037344107.
  12. Brown,Daniel V.; Asplund,Kyle D.; Michalski, Jr.,Joseph W.. Eccentric exhaust muffler for use with auxiliary power units. USP2008057367424.
  13. Francisco, Jay M.; Jones, Anthony C.; Giddings, Greg R.; Thayalakhandan, Nagamany; Peel, Jason. Eductor exhaust silencer assembly with bypass gasflow. USP2013108556027.
  14. Kudernatsch, Gunter. Exhaust gas system with helmholtz resonator. USP2004036705428.
  15. Hoppes Mathew S. ; Oster Aaron C. ; Smith Timothy L.. Exhaust muffler. USP2001046220387.
  16. Brian H. Gerber. Exhaust muffler for an internal combustion engine. USP2002056382347.
  17. Francisco, Jay M.; Napier, James C.. Exhaust silencer with baffles. USP2013128596568.
  18. Zelinski, Joseph Raymond. Exhaust system having angled baffle. USP2003086609590.
  19. Piercey, III,Gerald S.. Generator support plenum. USP2009017482705.
  20. Bland,Robert; Ryan,William. High frequency dynamics resonator assembly. USP2006077080514.
  21. Cai, Chao; Cheng, Ming; Hung, Kin Chew. High performance muffler. USP2005056892853.
  22. Bayliss, Andrew J.; Paterson, John T.; Retz, Kevin. Independent power generation in aircraft. USP2015028950703.
  23. Bayliss, Andrew J.; Paterson, John T.; Retz, Kevin. Independent power generation in aircraft. USP2014028657227.
  24. Campbell,Thomas A.; Voll,William A.; Diamond,John A.. Integrated axially varying engine muffler, and associated methods and systems. USP2007097267297.
  25. Storm, Mark. Method and apparatus for improved noise attenuation in a dissipative internal combustion engine exhaust muffler. USP2003066571910.
  26. Francisco, Jay M.; Napier, James C.; Sapiro, Dan G.; Hagshenas, Behzad. Mixed-flow exhaust silencer assembly. USP2009087578369.
  27. Eliers, Daniel J.; Fagerlund, Allen C.. Modal attenuator. USP2016069376946.
  28. Khayalian, Garabed. Muffler device. USP2005076915877.
  29. Starobinski, Rudolf; Siercke, Matthias. Silencer for an auxiliary power unit of an aircraft. USP2014078763751.
  30. Fagerlund, Allen C.; Gossett, James L.. Simplified modal attenuator. USP2015018931591.
  31. Yu, Jia; Chien, Eugene W.. Sound-absorbing exhaust nozzle center plug. USP2010087784283.
  32. Zielinski, Edward; Bernier, Alan T.; Knechtel, Kent W.; Campbell, Thomas A.; White, Jeffrey J.; Ralston, Mark D.. Systems and methods for starting aircraft engines. USP2009047513119.
  33. Lwasa, Ronald M.; Chow, Allen D.. Thermally compliant APU exhaust duct arrangements and associated systems and methods. USP2010087765784.
  34. Sheoran, Yogendra Y.; Brown, Daniel V.; Edmonds, David H.. Tortuous path quiet exhaust eductor system. USP2003096615576.
  35. Turner, Jeffrey A.; Sheoran, Yogendra Y.; Bouldin, Bruce D.. Turbine engine diffusing exhaust muffler. USP2010077762374.
  36. Karimi, Kamiar J.; Liu, Shengyi; Liffring, Mark E.; Helton, Steven B.; Fu, Sheau-Wei (Johnny). Vehicle electrical power management and distribution. USP2014058738268.

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