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특허 상세정보

Jet engine noise suppressor

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F01N-001/08    F02K-001/00   
미국특허분류(USC) 181/213 ; 181/264 ; 181/269 ; 181/273
출원번호 US-0388246 (1989-08-01)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 37  인용 특허 : 10
초록

A compressor bleed air passageway includes a duct having an upstream section (48) which terminates in a baffle (44) and a downstream duct section (54) having a forward portion (56) which surrounds the baffle (44). Bleed air flow through openings (58) in the baffle wall (52). This reduces velocity of the bleed air stream at the duct discharge port to a value equal to or less than Mach 1.0. The baffle (44) has virtually no effect on a low-velocity, low-pressure air stream. The downstream duct section (54) may be perforated and surrounded by outer wall (64)...

대표
청구항

In a system for bleeding air from a compressor of an aircraft engine to maintain compressor stability, said system including a flow passageway having an inlet end portion communicating with the engine and a discharge port communicating to atmosphere, an improvement for suppressing noise generated by supersonic exhause air from said discharge port, said improvement comprising: a baffle positioned in the passageway and having openings through which exhaust gas passes when moving through the passageway from said inlet end portion to the discharge port; said...

이 특허를 인용한 특허 피인용횟수: 37

  1. Chiou, Song; Yu, Jia; Hubert, Claude; Layland, Michael. Acoustic barrel for aircraft engine nacelle including crack and delamination stoppers. USP2010097798285.
  2. Moffat, George H.; Stubbs, Gene Woodard; Voll, William Albert. Acoustic muffler for turbine engine. USP2004026695094.
  3. Nguyen, Phuong H.; Sikora, Joseph A.; Campbell, Thomas A.. Automatic control systems for aircraft auxiliary power units, and associated methods. USP2011118061650.
  4. Nguyen, Phuong H.; Sikora, Joseph A.; Campbell, Thomas A.. Automatic control systems for aircraft auxiliary power units, and associated methods. USP2011027891605.
  5. Nguyen,Phuong H.; Sikora,Joseph A.; Campbell,Thomas A.. Automatic control systems for aircraft auxiliary power units, and associated methods. USP2008047364116.
  6. Mason, Jeffrey Lee; Sieg, Daniel Alexander; Gutierrez, Carlos Eduardo; Glessner, John Carl; Lawless, Charles Steve. Compact high-pressure exhaust muffling devices. USP2013048430202.
  7. Williams,Nicholas A.. Composite muffler for use with airborne auxiliary power unit. USP2008107431125.
  8. Batey J. Gary. Core flow expansion chamber device system for reduction of jet turbine engine noise. USP1998065758488.
  9. Wang, Cheng-Zhang; Phillips, Thomas G.; Cloud, David F.; Munsell, Peter M.. Customer bleed air pressure loss reduction. USP20181110119468.
  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.; Napier, James C.. Exhaust silencer with baffles. USP2013128596568.
  14. Wilcox, David Eugene; Kolberg, Thomas; Hammer, Mike. Fire containment apparatuses for aircraft duct assemblies. USP2017059650149.
  15. Dougan, Jr., Donald; Carminati, Daniel; Wang, Cheng-Zhang. Gas turbine engine outer case with contoured bleed boss. USP2016129528391.
  16. Haugen, Christina Granger Morrissey; Klasing, Kevin Samuel; Potokar, Christopher Jon; Proctor, Robert. High bleed flow muffling system. USP2013088511096.
  17. Klasing, Kevin Samuel; Fintel, Bradley Willis; Glessner, John Carl; Mason, Jeffrey Lee; Potokar, Christopher Jon; Proctor, Robert. High pressure drop muffling system. USP2012118307943.
  18. Potokar, Christopher Jon. High pressure muffling devices. USP2013108550208.
  19. Bayliss, Andrew J.; Paterson, John T.; Retz, Kevin. Independent power generation in aircraft. USP2015028950703.
  20. Bayliss, Andrew J.; Paterson, John T.; Retz, Kevin. Independent power generation in aircraft. USP2014028657227.
  21. Campbell,Thomas A.; Voll,William A.; Diamond,John A.. Integrated axially varying engine muffler, and associated methods and systems. USP2007097267297.
  22. Eliers, Daniel J.; Fagerlund, Allen C.. Modal attenuator. USP2016069376946.
  23. Haugen, Christina Granger Morrissey; Fintel, Bradley Willis; Green, Brian Richard; Klasing, Kevin Samuel. Modular louver system. USP2016079399951.
  24. Tomell, Phillip A.; Shafer, Ronny A.; Gopinathan, Anil; Paczuski, Andrew W.; DiFlora, Michael A.. Reciprocating piston compressor having improved noise attenuation. USP2004086776589.
  25. Tomell, Phillip A.; Shafer, Ronny A.; Gopinathan, Anil; Paczuski, Andrew W.; DiFlora, Michael A.. Reciprocating piston compressor having improved noise attenuation. USP2003056558137.
  26. Tomell,Phillip A; Shafer,Ronny A; Gopinathan,Anil; Paczuski,Andrew W; DiFlora,Michael A. Reciprocating piston compressor having improved noise attenuation. USP2007057210912.
  27. 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.
  28. Seyler,Andreas; L��we,Hans Joachim; Von Der Hagen,Joachim; St��nner,Helmut. Silencer. USP2008117448469.
  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. Keller,Uwe; Lowe,Hans Joachim; Von Der Hagen,Joachim; Metz,Dietmar; Stonner,Helmut. Sound absorber. USP2008067387188.
  32. Stein, Eric; Leaves, Perry. System and method for increasing coupling of an axle rotary transformer. USP2017029583260.
  33. 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.
  34. Lwasa, Ronald M.; Chow, Allen D.. Thermally compliant APU exhaust duct arrangements and associated systems and methods. USP2010087765784.
  35. Turner, Jeffrey A.; Sheoran, Yogendra Y.; Bouldin, Bruce D.. Turbine engine diffusing exhaust muffler. USP2010077762374.
  36. Kiyomori Asano JP; Hiroyuki Okada JP; Hitoshi Kato JP. Two stroke, multiple cylinder engine for small vehicle. USP2002076415747.
  37. Karimi, Kamiar J.; Liu, Shengyi; Liffring, Mark E.; Helton, Steven B.; Fu, Sheau-Wei (Johnny). Vehicle electrical power management and distribution. USP2014058738268.