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    • 1. 发明申请
    • TURBOFAN ENGINE INCLUDING THIRD FLOWPATH EXHAUST NOZZLE
    • 涡轮发动机,包括第三个流量排气喷嘴
    • WO2014130361A1
    • 2014-08-28
    • PCT/US2014/016509
    • 2014-02-14
    • UNITED TECHNOLOGIES CORPORATION
    • ROBERGE, Gary D.
    • F02K1/12F02K1/38F02K3/02F01D17/14
    • F02K1/1207F02K1/008F02K1/1292F02K1/38F02K3/02F02K3/075F02K3/077F05D2240/128F05D2250/36
    • A turbofan engine that includes a first flowpath, a second flowpath, a third flowpath, and a third flowpath exhaust nozzle is provided. The first flowpath is radially inboard of the second flowpath at a location upstream of a core section of the turbofan engine. The third flowpath is radially outboard of the second flowpath at the location upstream of the core section. The third flowpath exhaust nozzle defines a plurality of third flowpath exhaust exit ports through which gas traveling along the third flowpath may be discharged. An area or a geometry of each of the plurality of third flowpath exhaust exit ports is independently and selectively adjustable. A method for operating the turbofan engine includes independently and selectively adjusting an area or a geometry of at least one of the plurality of third flowpath exhaust exit ports to achieve a desired engine operation.
    • 提供了包括第一流路,第二流路,第三流路和第三流路排气喷嘴的涡轮风扇发动机。 第一流路在涡轮风扇发动机的核心部分的上游的位置处径向地位于第二流动路径的内侧。 第三流路径位于第二流路径的外侧,位于核心部分的上游位置处。 第三流路排气喷嘴限定了多个第三流路排气出口,通过该排出口可以排出沿第三流路行进的气体。 多个第三流路排出口中的每一个的区域或几何形状是可独立且有选择地调节的。 用于操作涡扇风扇发动机的方法包括独立地和选择性地调节多个第三流路排气出口中的至少一个的面积或几何形状,以实现期望的发动机操作。