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Acoustically shielded exhaust system for high thrust jet engines

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B64D-033/04   
미국특허분류(USC) 244/1N ; 239/26517 ; 239/26539 ; 60/2261
출원번호 US-0138569 (1993-10-18)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 15  인용 특허 : 0
초록

A flade exhaust nozzle for a high thrust jet engine is configured to form an acoustic shield around the core engine exhaust flowstream while supplementing engine thrust during all flight conditions, particularly during takeoff. The flade airflow is converted from an annular 360°flowstream to an arcuate flowstream extending around the lower half of the core engine exhaust flowstream so as to suppress exhaust noise directed at the surrounding community.

대표
청구항
▼

A flade exhaust system for a high thrust jet engine having a flade rotor producing a flade discharge airflow and a core engine producing an exhaust, said flade discharge airflow having a relatively low temperature and a relatively low velocity as compared to a relatively high temperature and a relatively high velocity of said exhaust of said core engine; said system comprising: a flade nozzle for exhausting said low temperature, low velocity flade discharge airflow from said jet engine; and duct means extending between said flade rotor and said flade noz...

이 특허를 인용한 특허 피인용횟수: 15

  1. Gutmark, Ephraim Jeff; Martens, Steven (nmn). Duplex tab exhaust nozzle. USP2012018087250.
  2. Giffin, III,Rollin George; Johnson,James Edward. FLADE gas turbine engine with counter-rotatable fans. USP2007077246484.
  3. Lariviere, Erin Lee; Ettorre, Stephen Michael. Flade discharge in 2-D exhaust nozzle. USP2015038984891.
  4. Johnson,James Edward. Flade gas turbine engine with fixed geometry inlet. USP2008077395657.
  5. Graziosi, Paolo; Kirtley, Kevin; Mani, Ramani. Fluidic chevrons and configurable thermal shield for jet noise reduction. USP2009097581692.
  6. Giffin, Rollin George; Johnson, James Edward. High pressure ratio aft fan. USP2009127631484.
  7. Chase, James D.; Garzon, German Andres. Jet nozzle plug with varying, non-circular cross sections. USP2013028371124.
  8. Giffin,Rollin George. Method and apparatus for assembling gas turbine engines. USP2006127144221.
  9. Papamoschou Dimitri (Mission Viejo CA). Method of eliminating mach waves from supersonic jets. USP1997015590520.
  10. Renggli, Bernard James; Jumper, Matthew Wilson; Price, Kenneth Daniel; Kuchar, Andrew Paul. Methods and apparatus for flade engine nozzle. USP2005096948317.
  11. Dawson, David Lynn; Lariviere, Erin Lee; Petersen, Brian Joseph; Ellerhorst, Robert Jerome. Multi-nozzle flow diverter for jet engine. USP2018039920710.
  12. Todorovic, Predrag. Noise-reduced aircraft engine and method for reducing noise emissions of an aircraft engine. USP2012078220586.
  13. Petty, Dale William. Sliding ramp nozzle system for a gas turbine engine. USP2014068739548.
  14. Norris Elwood G.. Sound reduction method and system for jet engines. USP1999105966452.
  15. Su Michael W. ; Podleski Steve D. ; Gally Thomas A. ; Newsum Sean A.. Turbo fan engine nacelle exhaust system with concave primary nozzle plug. USP2001016178740.

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