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Serrated nozzle trailing edge for exhaust noise suppression

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • F02K-001/00
출원번호 UP-0200616 (2005-08-10)
등록번호 US-7543452 (2009-07-01)
발명자 / 주소
  • Reba, Ramons Andris
  • Wake, Brian Ernest
  • Narayanan, Satish
  • Maeder, Thierry
출원인 / 주소
  • United Technologies Corporation
대리인 / 주소
    Carlson, Gaskey & Olds
인용정보 피인용 횟수 : 9  인용 특허 : 28

초록

A nozzle for a gas turbine engine is provided with undulations on a core and/or fan exhaust flow nozzle. An annular wall defines a fluid flow passage and includes a base portion and an adjoining exit portion. The base portion is typically generally frustoconical in shape and includes an arcuate cont

대표청구항

What is claimed is: 1. A nozzle comprising: an annular wall defining a fluid flow passage and including a base portion and an adjoining exit portion, the exit portion including undulations in a generally radial direction that provide lobes and troughs in the annular wall that each respectively incl

이 특허에 인용된 특허 (28)

  1. Tse, Man-Chun, Aero-engine exhaust jet noise reduction assembly.
  2. Mundt, Christian, Bloom mixer for a turbofan engine.
  3. Presz ; Jr. Walter M. (Wilbraham MA) Paterson Robert W. (Simbury CT) Werle Michael J. (W. Hartford CT), Bodies with reduced surface drag.
  4. Maguire, Addison C., Bypass gas turbine aeroengines and exhaust mixers therefor.
  5. John F. Brausch ; Bangalore A. Janardan ; John W. Barter, IV ; Gregory E. Hoff, Chevron exhaust nozzle for a gas turbine engine.
  6. Hebert, Leonard J., Convergent/divergent segmented exhaust nozzle.
  7. Prouteau,Jackie; Miroudot,Fr챕d챕ric, Device for reducing the jet noise of a turbomachine.
  8. Kirker, Timothy J., Exhaust flow mixers and nozzles.
  9. Siefker, Robert G.; Vittal, Baily Ramachandra; Baker, Von David; Khalid, Syed Arif; Loebig, James Carl, Exhaust mixer and apparatus using same.
  10. Mavrocostas George (Lanarca CYX), Exhaust mixer for turbofan aeroengine.
  11. Hammond Mark H. ; Presz ; Jr. Walter M., Exhaust nozzle for suppressing infrared radiation.
  12. Steven H. Zysman ; Wesley K. Lord ; Gregory A. Kohlenberg, Gas turbine engine jet noise suppressor.
  13. Ayyagari ; Radhakrishna, Gas turbine mixer apparatus for suppressing engine core noise and engine fan noise.
  14. 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.
  15. Eiler Donald C. (South Windsor CT), Lobe mixer for gas turbine engine.
  16. Wynosky Thomas A. (Madison CT) Streib Richard A. (Palm Beach Gardens FL) Campbell Charles A. (Palm Beach Gardens FL), Lobe mixer for gas turbine engine.
  17. Wynosky Thomas A. (Madison CT) Eiler Donald C. (South Windsor CT) Blatt Jerrold R. (Newington CT), Lobed mixer/inverter.
  18. Singer Victor (Newark DE), Method of making rocket motor extendible nozzle exit cone.
  19. Gowda,Srinivasa Range; Early,Kevin Sean; Martens,Steven, Methods and apparatus for operating gas turbine engines.
  20. Gutmark,Ephraim Jeff; Martens,Steven, Methods and apparatus for operating gas turbine engines.
  21. Vuillamy Didier (Quincampoix FRX) Baudart Pierre-Andr (Vernon FRX) Tiret Etienne (La Chapelle Reanville FRX) Beaurain Andr (Chambly FRX), Rocket engine nozzle having a notched diverging portion.
  22. Martens, Steven, Shelf truncated chevron exhaust nozzle for reduction of exhaust noise and infrared (IR) signature.
  23. Blodgett,Keith Edward James; Early,Kevin Sean; Martens,Steven; Bailey,William Andrew; Price,Kenneth Daniel, Sinuous chevron exhaust nozzle.
  24. Mathews Douglas C. ; Low John K. C., Tabbed nozzle for jet noise suppression.
  25. Goutines,Marius; Julliard,Jacques Michel Albert; Loheac,Pierre; Miroudot,Fr��d��ric Raymond Jean; Nogues,Jean Michel; Thomas,St��phane, Turbomachine nozzle cover for reducing jet noise.
  26. Bardagi, Thierry; Dravet, Alain; Doussinault, Marc, Turbomachine nozzle with noise reduction.
  27. Seiner John M. ; Gilinsky Mikhail M., Undulated nozzle for enhanced exit area mixing.
  28. Ivie Paul B. (8447 Sanger Ave. Whittier CA 90606), Variably convergent exhaust nozzle for a model ducted fan unit.

이 특허를 인용한 특허 (9)

  1. Viswanathan, Krishnamurthy, Apparatus and method for reduction of jet noise from single jets.
  2. Huzzard Cunningham, Mark, Gas turbine engine exhaust mixer including circumferentially spaced-apart radial rows of tabs extending downstream on the radial walls, crests and troughs.
  3. ELKady, Ahmed Mostafa; Vandervort, Christian Lee; Ramakrishnan, Kishore, System and method for premixer wake and vortex filling for enhanced flame-holding resistance.
  4. Van Ness, II, Daniel K.; Tews, Brian E.; Rodriguez, Christian O., System and method to improve the exhaust pressure across a RAM air turbine through secondary flow mixing.
  5. Au, Dax; Bigot, Pascal Moise Michel; Briend, Pierre; Loheac, Pierre Philippe Marie, Turbomachine nozzle cover provided with triangular patterns having pairs of vertices for reducing jet noise.
  6. Niergarth, Daniel Alan; Prentice, Ian Francis; Kroger, Christopher James, Variable pitch fan blade retention system.
  7. Miller, Brandon Wayne; Prentice, Ian Francis; Niergarth, Daniel Alan, Variable pitch fan for gas turbine engine and method of assembling the same.
  8. Niergarth, Daniel Alan; Miller, Brandon Wayne; Bradley, Donald Albert, Variable-pitch rotor with remote counterweights.
  9. Thomas, Russell H.; Kinzie, Kevin W., Wet active chevron nozzle for controllable jet noise reduction.
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