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특허 상세정보

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Systems and methods for reducing noise from jet engine exhaust

특허상세정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F02K-001/00   
미국특허분류(USC) 060/770; 181/213; 239/26517
출원번호 US-0707217 (2007-02-14)
등록번호 US7966826 (2011-06-15)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Perkins Coie LLP
인용정보 피인용 횟수 : 15  인용 특허 : 32
초록
▼

Jet engine nozzles with projections (e.g., chevrons) and injected flow, and associated systems and methods are disclosed. A method in accordance with one embodiment includes generating a first flow of gas with a jet engine, delivering the first flow through a nozzle having a trailing edge perimeter that includes multiple projections extending in an aft direction, and injecting a pressurized second flow of fluid into the first flow proximate to the projections. In other embodiments, other mixing enhancement devices (e.g., vortex generators) are carried by...

대표
청구항
▼

We claim: 1. A method for controlling aircraft engine nozzle flow, comprising: generating a first flow of gas with a jet engine;delivering the first flow through a nozzle having a trailing edge perimeter including multiple projections extending in an aft direction, with individual projections having a generally triangular shape with a tip region positioned aft of a base region; anddirecting a second flow of fluid into the first flow at least proximate to the projections via a plurality of apertures, with individual apertures being axially aligned with co...

이 특허에 인용된 특허 (32)

  1. Tse, Man-Chun. Aero-engine exhaust jet noise reduction assembly. USP2003116640537.
  2. Presz ; Jr. Walter M. ; Reynolds Gary. Alternating lobed mixer/ejector concept suppressor. USP1999035884472.
  3. Narayanan, Satish; Simonich, John; Schlinker, Robert Hans. Asymmetric serrated nozzle for exhaust noise reduction. USP2009047520124.
  4. John F. Brausch ; Bangalore A. Janardan ; John W. Barter, IV ; Gregory E. Hoff. Chevron exhaust nozzle for a gas turbine engine. USP2002036360528.
  5. Feuillard,Philippe; Hemeury,Philippe; Gerri,Christian. Chevron-type primary exhaust nozzle for aircraft turbofan engine, and aircraft comprising such a nozzle. USP2008127469529.
  6. Lair, Jean-Pierre. Confluent exhaust nozzle. USP2005126971229.
  7. Lair, Jean-Pierre. Confluent variable exhaust nozzle. USP2004066751944.
  8. Hebert, Leonard J.. Convergent/divergent segmented exhaust nozzle. USP2003126658839.
  9. Nesbitt, Eric H.; Butler, George W.; Reed, David H.. Deployable segmented exhaust nozzle for a jet engine. USP2004046718752.
  10. Prouteau,Jackie; Miroudot,Fr챕d챕ric. Device for reducing the jet noise of a turbomachine. USP2007127310939.
  11. Rodgers Leonard J. (Spondon GB2). Exhaust mixer for turbofan aeroengine. USP1984124487017.
  12. Birch, Nigel T; Webster, John R. Gas turbine engine exhaust nozzle having a noise attenuation device driven by shape memory material actuators. USP2004116813877.
  13. Rudolph Peter K. C. (Seattle WA). Gas turbine mixer apparatus. USP1980084215536.
  14. Papamoschou,Dimitri. Jet engine noise suppressor. USP2007117293401.
  15. Berman Charles H.. Jet engine noise suppressor assembly. USP1999095947412.
  16. Schlinker,Robert; Narayanan,Satish; Lord,Wesley K.; Kohlenberg,Gregory A.; Reba,Ramons; Simonich,John; Soteriou,Marios C.; Maeder,Thierry. Jet exhaust noise reduction system and method. USP2006107114323.
  17. Seiner John M. ; Gilinsky Mikhail M.. Jet nozzle having centerbody for enhanced exit area mixing. USP1999075924632.
  18. Martens,Steven; Saddoughi,Seyed Gholamali; Early,Kevin Sean. Method and apparatus for noise attenuation for gas turbine engines using at least one synthetic jet actuator for injecting air. USP2006067055329.
  19. Gowda,Srinivasa Range; Early,Kevin Sean; Martens,Steven. Methods and apparatus for operating gas turbine engines. USP2006087093423.
  20. Gutmark,Ephraim Jeff; Martens,Steven. Methods and apparatus for operating gas turbine engines. USP2007077246481.
  21. Shih, Chiang; Alvi, Farrukh S.; Krothapalli, Anjaneyulu. Microjet based control system. USP2005016837456.
  22. Koshoffer John M. (Green Hills OH). Mixed flow augmentor pre-mixer. USP1992065117628.
  23. Fletcher James C. Administrator of the National Aeronautics and Space Administration ; with respect to an invention of ( Palo Alto CA) Cheng Dah Y. (Palo Alto CA). Noise suppressor for turbo fan jet engines. USP1983024372110.
  24. Farquhar Bannister W. (Bellevue WA) Sokhey Jagdish S. (Renton WA). Primary-secondary ventilated flow mixer nozzle for high bypass turbo fan jet propulsion system. USP1989044819425.
  25. Dun, Roy. Scarf nozzle for a jet engine and method of using the same. USP2005116969028.
  26. Balzer, Ronald L.. Segmented mixing device having chevrons for exhaust noise reduction in jet engines. USP2004096786037.
  27. Balzer, Ronald L.. Segmented mixing device having chevrons for exhaust noise reduction in jet engines. USP2003096612106.
  28. Martens, Steven. Shelf truncated chevron exhaust nozzle for reduction of exhaust noise and infrared (IR) signature. USP2003036532729.
  29. Mathews Douglas C. ; Low John K. C.. Tabbed nozzle for jet noise suppression. USP2001116314721.
  30. Winter, Michael; Hanson, Russell B.. Thrust vectorable fan variable area nozzle for a gas turbine engine fan nacelle. USP2009127637095.
  31. Seiner John M. ; Gilinsky Mikhail M.. Undulated nozzle for enhanced exit area mixing. USP2000076082635.
  32. Lair,Jean Pierre. Ventilated confluent exhaust nozzle. USP2006037010905.

이 특허를 인용한 특허 피인용횟수: 15

  1. Bodard, Guillaume; Vuillemin, Alexandre Alfred Gaston. Device for reducing the noise emitted by the jet of an aircraft propulsion engine. USP2016089422887.
  2. Dijoud, Delphine Edith; Fauvelet, Benoit Marc Michel; Vincent, Thomas Alain Christian. Fan nozzle of adjustable section. USP2012048156727.
  3. Kupratis, Daniel B.. Gas turbine engine having core auxiliary duct passage. USP2013028371806.
  4. Baltas, Constantine; Hauser, Joseph R.. Gas turbine engine with a variable exit area fan nozzle, nacelle assembly of such a engine, and corresponding operating method. USP2012098256225.
  5. Hyde, Roderick A.; Ishikawa, Muriel Y.; Jung, Edward K. Y.; Kare, Jordin T.; Myhrvold, Nathan P.; Tegreene, Clarence T.; Weaver, Thomas A.; Wood, Jr., Lowell L.; Wood, Victoria Y. H.. Hybrid propulsive engine including at least one independently rotatable compressor rotor. USP2013128596036.
  6. Foster, Glenn B.; Hyde, Roderick A.; Ishikawa, Muriel Y.; Jung, Edward K. Y.; Kare, Jordin T.; Myhrvold, Nathan P.; Tegreene, Clarence T.; Weaver, Thomas Allan; Wood, Jr., Lowell L.; Wood, Victoria Y. H.. Hybrid propulsive engine including at least one independently rotatable compressor stator. USP2012028109073.
  7. Hyde, Roderick A.; Ishikawa, Muriel Y.; Jung, Edward K. Y.; Kare, Jordin T.; Myhrvold, Nathan P.; Tegreene, Clarence T.; Weaver, Thomas A.; Wood, Jr., Lowell L.; Wood, Victoria Y. H.. Hybrid propulsive engine including at least one independently rotatable compressor stator. USP2013108549833.
  8. Foster, Glenn B.; Hyde, Roderick A.; Ishikawa, Muriel Y.; Jung, Edward K. Y.; Kare, Jordin T.; Myhrvold, Nathan P.; Tegreene, Clarence T.; Weaver, Thomas Allan; Wood, Jr., Lowell L.; Wood, Victoria Y. H.. Hybrid propulsive engine including at least one independently rotatable propeller/fan. USP2012018099944.
  9. Hyde, Roderick A.; Ishikawa, Muriel Y.; Jung, Edward K. Y.; Kare, Jordin T.; Myhrvold, Nathan P.; Tegreene, Clarence T.; Weaver, Thomas Allan; Wood, Jr., Lowell L.; Wood, Victoria Y. H.. Hybrid propulsive engine including at least one independently rotatable propeller/fan. USP2014108857191.
  10. Foster, Glenn B.; Hyde, Roderick A.; Ishikawa, Muriel Y.; Jung, Edward K. Y.; Kare, Jordin T.; Myhrvold, Nathan P.; Tegreene, Clarence T.; Weaver, Thomas Allan; Wood, Jr., Lowell L.; Wood, Victoria Y. H.. Hybrid propulsive engine including at least one independently rotatable turbine stator. USP2012108291716.
  11. Caruel, Pierre; Marin Martinod, Thierry. Noise reduction device for turbojet nacelle with mobile chevrons, and associated nacelle. USP2013048430203.
  12. Tanaka, Nozomi; Kusuda, Shinya; Oishi, Tsutomu; Oba, Yoshinori. Noise reduction system with chamber. USP2014088813907.
  13. Meyer, Robert. Nozzle, structural element, and method of producing a nozzle. USP2016119500161.
  14. Huber, Jerome; Bonnet, Jean-Paul; Delville, Joel; Jordan, Peter; Strekowski, Francois. Systems and methods for reducing noise from jet engine exhaust. USP2014078770921.
  15. McMahan, Kevin Weston; Schott, Carl Gerard; Ingram, Clint Luigie; Siden, Gunnar Leif; Pierre, Sylvain. Transition duct assembly with modified trailing edge in turbine system. USP2016109458732.

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