Invention Grant
US07000378B2 Gas turbine engine exhaust nozzle having a noise attenuation device driven by shape memory material actuators 有权
具有由形状记忆材料致动器驱动的噪声衰减装置的燃气轮机发动机排气喷嘴

  • Patent Title: Gas turbine engine exhaust nozzle having a noise attenuation device driven by shape memory material actuators
  • Patent Title (中): 具有由形状记忆材料致动器驱动的噪声衰减装置的燃气轮机发动机排气喷嘴
  • Application No.: US10950551
    Application Date: 2004-09-28
  • Publication No.: US07000378B2
    Publication Date: 2006-02-21
  • Inventor: Nigel T BirchJohn R Webster
  • Applicant: Nigel T BirchJohn R Webster
  • Applicant Address: GB London
  • Assignee: Rolls-Royce plc
  • Current Assignee: Rolls-Royce plc
  • Current Assignee Address: GB London
  • Agency: Manelli Denison & Selter PLLC
  • Agent W. Warren Taltavull
  • Priority: GB0105349 20010303
  • Main IPC: F02F3/02
  • IPC: F02F3/02
Gas turbine engine exhaust nozzle having a noise attenuation device driven by shape memory material actuators
Abstract:
A gas turbine engine exhaust nozzle arrangement for the flow of exhaust gases therethrough between an upstream end and a downstream end thereof comprising a nozzle and a plurality of tabs which extend in a generally axial direction from a downstream portion of the nozzle wherein the nozzle further comprises an actuation mechanism capable of moving the tabs between a first deployed position, where the tabs interact with a gas stream to reduce exhaust noise thereof, and a second non-deployed position, where the tabs are substantially aerodynamically unobtrusive.
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