NACELLE ASSEMBLY FOR A VARIABLE AREA FAN NOZZLE OF A GAS TURBINE ENGINE
    2.
    发明申请
    NACELLE ASSEMBLY FOR A VARIABLE AREA FAN NOZZLE OF A GAS TURBINE ENGINE 审中-公开
    燃气涡轮发动机可变区域风扇喷嘴的组合

    公开(公告)号:WO2011066368A3

    公开(公告)日:2011-12-22

    申请号:PCT/US2010057977

    申请日:2010-11-24

    CPC classification number: F02K1/72 F02K1/09 F02K3/06 F05D2260/96 Y02T50/672

    Abstract: A nacelle assembly for a high-bypass gas turbine engine includes a variable area fan nozzle having a first fan nacelle section and a second fan nacelle section. The second fan nacelle section being axially movable relative the first fan nacelle section to define an auxiliary port to vary a fan nozzle exit area and adjust fan bypass airflow, the second fan nacelle section includes at least one cowl with an inner portion, an outer portion and a multiple of stiffeners there between to increase a flutter margin.

    Abstract translation: 用于高旁路燃气涡轮发动机的机舱组件包括具有第一风扇机舱部分和第二风扇机舱部分的可变区域风扇喷嘴。 所述第二风扇机舱部分可相对于所述第一风扇机舱部分轴向移动以限定辅助端口以改变风扇喷嘴出口区域并调节风扇旁路气流,所述第二风扇机舱部分包括至少一个带有内部部分的整流罩, 以及其间的多个加强件之间以增加颤振余量。

    3.
    发明专利
    未知

    公开(公告)号:DE602005007272D1

    公开(公告)日:2008-07-17

    申请号:DE602005007272

    申请日:2005-01-24

    Abstract: Hollow fan blades for turbo fan gas turbine engines are formed of two separate detail halves (30a;30b). Each detail half (30a) has a plurality of cavities (40) and ribs (70) machined out to reduce weight. These detail halves are subsequently bonded and given an airfoil shape in the forming operation. In the present invention, the ribs (70) are oriented and biased to provide stiffness as needed in different sections of the fan blade with smooth transitions between regions. In particular, ribs (72a) in a first region (A) of the detail substrate (61) are formed so as not to be parallel to ribs (72c) in a second region (B) of the substrate. The result is a blade with good protection from a wide spectrum of external threats.

    4.
    发明专利
    未知

    公开(公告)号:AT397512T

    公开(公告)日:2008-06-15

    申请号:AT05250319

    申请日:2005-01-24

    Abstract: Hollow fan blades for turbo fan gas turbine engines are formed of two separate detail halves (30a;30b). Each detail half (30a) has a plurality of cavities (40) and ribs (70) machined out to reduce weight. These detail halves are subsequently bonded and given an airfoil shape in the forming operation. In the present invention, the ribs (70) are oriented and biased to provide stiffness as needed in different sections of the fan blade with smooth transitions between regions. In particular, ribs (72a) in a first region (A) of the detail substrate (61) are formed so as not to be parallel to ribs (72c) in a second region (B) of the substrate. The result is a blade with good protection from a wide spectrum of external threats.

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