$\require{mediawiki-texvc}$
  • 검색어에 아래의 연산자를 사용하시면 더 정확한 검색결과를 얻을 수 있습니다.
  • 검색연산자
검색연산자 기능 검색시 예
() 우선순위가 가장 높은 연산자 예1) (나노 (기계 | machine))
공백 두 개의 검색어(식)을 모두 포함하고 있는 문서 검색 예1) (나노 기계)
예2) 나노 장영실
| 두 개의 검색어(식) 중 하나 이상 포함하고 있는 문서 검색 예1) (줄기세포 | 면역)
예2) 줄기세포 | 장영실
! NOT 이후에 있는 검색어가 포함된 문서는 제외 예1) (황금 !백금)
예2) !image
* 검색어의 *란에 0개 이상의 임의의 문자가 포함된 문서 검색 예) semi*
"" 따옴표 내의 구문과 완전히 일치하는 문서만 검색 예) "Transform and Quantization"

특허 상세정보

Device for reducing the noise emitted by the jet of an aircraft propulsion engine

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F02K-001/34    F02K-001/46   
출원번호 US-0696821 (2011-05-11)
등록번호 US-9422887 (2016-08-23)
우선권정보 FR-10 53756 (2010-05-12)
국제출원번호 PCT/FR2011/051060 (2011-05-11)
§371/§102 date 20121108 (20121108)
국제공개번호 WO2011/141678 (2011-11-17)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Oblon, McClelland, Maier & Neustadt, L.L.P
인용정보 피인용 횟수 : 0  인용 특허 : 11
초록

A gas exhaust nozzle for aircraft propulsion includes at least a downstream part with a trailing edge of chevron type formed of chevrons distributed along the periphery of the nozzle. Each chevron extends downstream between an upstream transverse plane and a downstream transverse plane with free edges oriented in two converging downstream directions and defining the trailing edge. The chevrons generate vortices at the boundary of the jet emitted by the nozzle. The gas exhaust nozzle includes a device to inject auxiliary gas jets upstream of the free edge...

대표
청구항

1. A gas exhaust nozzle for aircraft propulsion, comprising: at least a downstream part with a trailing edge of chevron type, formed of chevrons distributed along a periphery of the nozzle, the nozzle having a longitudinal axis, each chevron extending downstream and being entirely delimited between an upstream transverse plane and a downstream transverse plane, the upstream transverse plane being perpendicular to the longitudinal axis, said trailing edge defined by a plurality of free edges and each chevron including a first free edge and a second free e...

이 특허에 인용된 특허 (11)

  1. Feuillard,Philippe; Hemeury,Philippe; Gerri,Christian. Chevron-type primary exhaust nozzle for aircraft turbofan engine, and aircraft comprising such a nozzle. USP2008127469529.
  2. Huber, Jerome; Bonnet, Jean-Paul; Delville, Joel; Jordan, Peter; Strekowski, Francois. Device for reducing noise generated by an aircraft jet engine with curve ducts. USP2012048157050.
  3. Huber, Jerome; Bonnet, Jean-Paul; Delville, Joel; Jordan, Peter; Strekowski, Francois. Device with plane jets for reducing the noise generated by an aircraft engine. USP2012038132756.
  4. Huber, Jerome; Bonnet, Jean-Paul; Delville, Joel; Jordan, Peter; Strekowski, Francois. Device with secondary jets reducing the noise generated by an aircraft jet engine. USP2013038393139.
  5. 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.
  6. Gutmark,Ephraim Jeff; Martens,Steven. Methods and apparatus for operating gas turbine engines. USP2007077246481.
  7. Tisdale, Rudolph Morris; Uhler, Gregory Allen; Johnson, Michael Robert; Nye, Christopher Joseph. Modular chevron exhaust nozzle. USP2011047926285.
  8. Balzer, Ronald L.. Segmented mixing device having chevrons for exhaust noise reduction in jet engines. USP2003096612106.
  9. Blodgett,Keith Edward James; Early,Kevin Sean; Martens,Steven; Bailey,William Andrew; Price,Kenneth Daniel. Sinuous chevron exhaust nozzle. USP2007127305817.
  10. Alkislar, Mehmet B.; Butler, George W.; Reed, David H.. Systems and methods for reducing noise from jet engine exhaust. USP2011067966826.
  11. Thomas, Russell H.; Kinzie, Kevin W.. Wet active chevron nozzle for controllable jet noise reduction. USP2011098015819.