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    • 1. 发明申请
    • SHAPE MEMORY ALLOY ACTUATOR
    • 形状记忆合金执行器
    • WO2008118224A3
    • 2008-12-11
    • PCT/US2007086036
    • 2007-11-30
    • MINOR GARY ABROWN JEFFREY W
    • MINOR GARY ABROWN JEFFREY W
    • F24F11/76F03G7/06G05D23/01G05D23/02
    • F03G7/065F05B2270/606F05C2251/08F24F11/76
    • A shape memory alloy (SMA) actuator for engaging and actuating a device.. The actuator includes an engagement mechanism, a bias element, and a SMA object(s). The SMA actuator may automatically and passively transfer to a backup or redundant feature that resets or extends the actuator's operational life. In one embodiment, the SMA actuator includes an additional SMA object(s) that replaces the primary SMA object(s) in the event the primary SMA object(s) breaks. The SMA actuator may also be configured to apply a dynamic stress to the SMA object during transition of the object to modify the transition temperatures of the object. The SMA actuator may be part of a fluid distribution system, such as a heating, ventilation, and air conditioning (HVAC) system and used to control the flow of fluid, such as air, from the distribution system.
    • 形状记忆合金(SMA)致动器,用于接合和致动装置。致动器包括接合机构,偏置元件和SMA对象。 SMA执行器可以自动和被动地传输到备用或冗余功能,以重置或延长执行器的使用寿命。 在一个实施例中,SMA致动器包括在主要SMA对象破裂的情况下替换主要SMA对象的附加SMA对象。 SMA致动器还可以被配置成在物体转变期间向SMA物体施加动态应力以修改物体的转变温度。 SMA致动器可以是流体分配系统的一部分,例如加热,通风和空调(HVAC)系统,并且用于控制来自分配系统的流体(例如空气)的流动。