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    • 3. 发明公开
    • A gas turbine engine exhaust nozzle
    • AbgasdüsefürGasturbinenmotor
    • EP2730773A2
    • 2014-05-14
    • EP13005257.4
    • 2013-11-07
    • Rolls-Royce plc
    • Webster, John Richard
    • F02K1/50F02K1/12
    • F02K1/1207F02K1/085F02K1/50
    • An exhaust nozzle 234 comprising inner and outer walls defined by a turbine casing 233 and a nacelle 230 respectively. A duct in the form of a bypass duct 232 is defined therebetween through which a bypass flow B flows in use. The nacelle 230 comprises a fixed upstream wall section 240 and at least one radially movable downstream wall section 242. At least one closure element in the form of a first slat 248 is provided, which is locatable across the second outlet 246 extending in a generally axial direction. A downstream end 250 of the first slat 248 is radially moveable between an open position in which the second outlet 246 is open, and a closed position in which the second outlet 246 is closed.
    • 排气喷嘴234包括由涡轮壳体233和机舱230分别限定的内壁和外壁。 旁通管道232形式的管道被限定在旁路流B在其中流动通过。 机舱230包括固定的上游壁部分240和至少一个可径向移动的下游壁部分242.提供呈第一板条248形式的至少一个封闭元件,其可跨越第二出口246定位,该第二出口246以大致轴向延伸 方向。 第一条板248的下游端250可在第二出口246打开的打开位置和第二出口246关闭的关闭位置之间径向移动。