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특허 상세정보

Apparatus for suppressing internally generated gas turbine engine low frequency noise

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F02K-001/00   
미국특허분류(USC) 181/213 ; 181/239 ; 181/247
출원번호 US-0965652 (1978-12-01)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 14  인용 특허 : 3
초록

A method and apparatus for suppressing internally generated gas turbine engine low frequency noise is disclosed. The apparatus is comprised of means for structuring the cross-sectional area of the gas flow path into one or more open elements of a predetermined size. The method involves a way of determining the size of each of the elements and the total number of elements.

대표
청구항

In a gas turbine engine including a gas flow path and a core exhaust nozzle, an apparatus for suppressing internally generated low frequency noise comprising: a one-piece, generally disc-shaped suppressor located within and at the downstream end of the core exhaust nozzle of the engine, said suppressor comprising a plurality of open elements therethrough, a characteristic dimension of each of said open elements being less than or equal to a suppressor constant times the acoustic wavelength of an internally generated noise frequency which is to be suppres...

이 특허를 인용한 특허 피인용횟수: 14

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  3. Stephen McCulloch. Choke restrictor devices and methods. USP2002086435216.
  4. Mason, Jeffrey Lee; Sieg, Daniel Alexander; Gutierrez, Carlos Eduardo; Glessner, John Carl; Lawless, Charles Steve. Compact high-pressure exhaust muffling devices. USP2013048430202.
  5. Haugen, Christina Granger Morrissey; Klasing, Kevin Samuel; Potokar, Christopher Jon; Proctor, Robert. High bleed flow muffling system. USP2013088511096.
  6. McCulloch,Stephen; Brinkley,Jimmy. High energy dissipative and erosion resistant fluid flow enhancer. USP2008127469720.
  7. Klasing, Kevin Samuel; Fintel, Bradley Willis; Glessner, John Carl; Mason, Jeffrey Lee; Potokar, Christopher Jon; Proctor, Robert. High pressure drop muffling system. USP2012118307943.
  8. Potokar, Christopher Jon. High pressure muffling devices. USP2013108550208.
  9. Hirt William J. (Bellevue WA) Caldwell Jack H. (Kent WA) Stachowiak Claude R. (Renton WA) Rushwald Ira B. (Seattle WA) Kumasaka Henry A. (Seattle WA). Jet engine noise suppressor. USP1990124979587.
  10. Gutmark,Ephraim Jeff; Callender,Bryan W.; Martens,Steven. Method and apparatus for operating gas turbine engines. USP2008087412832.
  11. Gutmark,Ephraim Jeff; Martens,Steven. Methods and apparatus for operating gas turbine engines. USP2007077246481.
  12. Bachman, Gene W.; Jones, Raymond M.; Cloeter, Michael D.; Lipp, Charles W.; Bartel, Mark J.; Coomes, Brady J.; Daigle, Scott J.; Janda, Steve F.. Mixer for continuous flow reactor, continuous flow reactor, method of forming such a mixer, and method of operating such a reactor. USP2014098827544.
  13. Haugen, Christina Granger Morrissey; Fintel, Bradley Willis; Green, Brian Richard; Klasing, Kevin Samuel. Modular louver system. USP2016079399951.
  14. Awad Elias A.. Noise reducing diffuser. USP1999075929396.