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특허 상세정보

Noise-reduced aircraft engine and method for reducing noise emissions of an aircraft engine

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F02K-001/34    F02K-001/46    F01N-001/14    F02K-001/28    F02K-001/44    F01N-001/00   
미국특허분류(USC) 181/213; 181/220; 415/119
출원번호 US-0818389 (2010-06-18)
등록번호 US-8220586 (2012-07-17)
우선권정보 DE-10 2009 032 841 (2009-07-13)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Klima, Timothy J.
인용정보 피인용 횟수 : 0  인용 특허 : 20
초록

A method for reducing noise emissions of an aircraft engine (3) having a gas turbine (7), includes providing a hot gas layer underneath at least one noise-emitting area of the aircraft engine.

대표
청구항

1. A method for reducing noise emissions of an aircraft engine, comprising: providing a hot gas source upstream of at least one noise-emitting area of the aircraft engine in relation to a direction of flight of the aircraft engine;forming hot gas from the hot gas source into a shell-like layer and flowing the shell-like layer externally of the aircraft engine in a downstream direction to extend downstream of and beneath the at least one noise-emitting area of the aircraft engine to create a boundary layer downstream of and beneath the at least one noise-...

이 특허에 인용된 특허 (20)

  1. Carey John P. (Upper Marlboro MD) Lee Robert (Cincinnati OH) Majjigi Rudramuni K. (Cincinnati OH). Acoustically shielded exhaust system for high thrust jet engines. USP1995045402963.
  2. Drzewiecki Tadeusz M. (Rockville MD) Niemczuk John B. (Kensington MD) Fuller Christopher R. (Norfolk VA) Thomas Russell H. (Hampton VA) Burdisso Ricardo A. (Blacksburg VA). Acousto-fluidic driver for active control of turbofan engine noise. USP1997095662136.
  3. Maestrello Lucio (Newport News VA). Apparatus and method for jet noise suppression. USP1983084398667.
  4. Dorris ; III John ; Smith David Michael ; Parekh David Espineli ; Kibens Valdis. Apparatus and methods for active flow control of a nozzle exhaust plume. USP2001106308898.
  5. Nelson Philip A. (Southampton GB2) Fisher Michael J. (Southampton GB2) Rioual Jean-Luc (Southampton GB2). Control of boundary layer flow. USP1993065222698.
  6. Lair, Jean-Pierre. Duplex mixer exhaust nozzle. USP2004096786038.
  7. Graziosi, Paolo; Kirtley, Kevin; Mani, Ramani. Fluidic chevrons and configurable thermal shield for jet noise reduction. USP2009097581692.
  8. Stangeland,Maynard L.. Inducer tip vortex suppressor. USP2006087097414.
  9. Stanek, Michael J.. Jet noise suppressor. USP2003066571549.
  10. Ritenour Paul E. (P.O. Box 27318 San Diego CA 92128). Low noise fan. USP1987094692091.
  11. Ngo Hieu Thien. Method and apparatus for a fan noise controller. USP2001066244817.
  12. Miller, Daniel N.; Yagle, Patrick J.; Ginn, Kerry B.; Hamstra, Jeffrey W.. Method and apparatus of asymmetric injection into subsonic flow of a high aspect ratio/complex geometry nozzle. USP2005116962044.
  13. Efremkin, Artem P.; Efremkin, Pavel V.. Method and device to increase thrust and efficiency of jet engine. USP2011088001762.
  14. Parente Charles A.. Noise suppression system for a jet engine. USP1998025721402.
  15. Duane C. McCormick ; Wesley K. Lord. Passively driven acoustic jet controlling boundary layers. USP2002046379110.
  16. Koff Steven G. (Cambridge MA) Nikkanen John P. (West Hartford CT) Mazzawy Robert S. (South Glastonbury CT). Rotor case treatment. USP1994055308225.
  17. Klees Garry W. (Mercer Island WA). Simplified method and apparatus for hot-shield jet noise suppression. USP1981094291782.
  18. Cowan ; Sr. Howard H. (3315 N. Godfrey #36 Midland TX 79707). System for suppressing engine exhaust noise. USP1995075428954.
  19. Goto Akira,JPX ; Katsumata Tatsuyoshi,JPX. Turbomachine. USP1998015707206.
  20. Thomas, Russell H.; Kinzie, Kevin W.. Wet active chevron nozzle for controllable jet noise reduction. USP2011098015819.