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    • 6. 发明公开
    • SHAPE MEMORY ALLOY-ACTUATED PROPELLER BLADES AND SHAPE MEMORY ALLOY-ACTUATED PROPELLER ASSEMBLIES
    • FORMGEDÄCHTNISLEGIERUNGSBETÄTIGTEPROPELLERBLÄTTERFORFORMGEDÄCHTNISLEGIERUNGSBETÄTIGTEPROPELLERANORDNUNGEN
    • EP3127804A1
    • 2017-02-08
    • EP16171216.1
    • 2016-05-25
    • The Boeing Company
    • Bigbee-Bansen, William J.Clingman, Dan J.Mabe, James H.
    • B64C11/30B64C11/44
    • B64C11/06B64C11/20B64C11/30B64C11/44B64C2027/7288F05D2300/505Y02T50/34
    • Shape memory alloy-actuated propeller blades and shape memory alloy-actuated propeller assemblies are disclosed. An example propeller blade includes a propeller body (212), a plate (222) coupled to the propeller body (212), a torque transfer member (220), and a shape memory alloy (SMA) actuator (218). The torque transfer member (220) has a distal end attached to the plate (222) such that the torque transfer member (220) applies to the plate (222) at least a portion of a torque applied to the torque transfer member (220) at a proximal end ofthe torque transfer member (220). The SMA actuator (218) has a distal end and a proximal end. The distal end of the SMA actuator (218) is attached to the torque transfer member. (220) The proximal end ofthe SMA actuator (218) is coupled to the propeller body (212) such that the distal end is mated to the propeller body. (212) The SMA actuator (218)is configured to apply the torque to the proximal end of the torque transfer member (220) in response to an application of heat to the SMA actuator (218).
    • 公开了形状记忆合金致动的螺旋桨叶片和形状记忆合金致动的螺旋桨组件。 示例性螺旋桨叶片包括螺旋桨体(212),联接到螺旋桨体(212)的板(222),扭矩传递构件(220)和形状记忆合金(SMA)致动器(218)。 转矩传递构件(220)具有附接到板(222)的远端,使得扭矩传递构件(220)向施加到扭矩传递构件(220)的扭矩的至少一部分施加到板(222) 在扭矩传递构件(220)的近端处。 SMA致动器(218)具有远端和近端。 SMA致动器(218)的远端附接到扭矩传递构件。 (220)SMA致动器(218)的近端联接到螺旋桨体(212),使得远端与螺旋桨体配合。 (212)SMA致动器(218)被配置为响应于向SMA致动器(218)施加热量而将扭矩施加到转矩传递构件(220)的近端。