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    SHAPE MEMORY ALLOY ACTUATOR WITH ENHANCED HEAT TRANSFER CHARACTERISTICS
    71.
    发明申请
    SHAPE MEMORY ALLOY ACTUATOR WITH ENHANCED HEAT TRANSFER CHARACTERISTICS 有权
    形状记忆合金执行器，具有增强的热传递特性

    公开(公告)号：US20120234000A1

    公开(公告)日：2012-09-20

    申请号：US13048952

    申请日：2011-03-16

    申请人： Alan L. Browne ,  Nancy L. Johnson ,  Xiujie Gao ,  James Holbrook Brown ,  Nilesh D. Mankame ,  Nicholas W. Pinto, IV

    发明人： Alan L. Browne ,  Nancy L. Johnson ,  Xiujie Gao ,  James Holbrook Brown ,  Nilesh D. Mankame ,  Nicholas W. Pinto, IV

    IPC分类号： F01B29/10

    CPC分类号： F03G7/065

    摘要： A shape memory alloy (SMA) actuator includes an SMA element and a flexible outer coating or layer. The element is respectively activated by a heating source. The layer surrounds the element, and enhances the heat transfer characteristics of the element to increase the speed of the actuation cycle. The nominal geometry and/or thermal conductivity may be altered during an activation phase, and may include discrete elements oriented with respect to the element, and partially embedded in the layer. An end gripper assembly may be used to cause the layer to move in concert with the element during a phase transformation. An electro-mechanical system includes the cooling source and the actuator. A method includes connecting the actuator to a load, activating the element using the heating source, and deactivating the element using a cooling source or free/ambient air.

    摘要翻译： 形状记忆合金（SMA）致动器包括SMA元件和柔性外涂层或层。 元件分别由加热源激活。 该层围绕元件，并且增强元件的传热特性以增加致动循环的速度。 标称几何形状和/或热导率可以在激活阶段期间改变，并且可以包括相对于元件定向且部分地嵌入在该层中的分立元件。 可以使用端部夹持器组件，以在相变期间使层与元件一起移动。 机电系统包括冷却源和致动器。 一种方法包括将致动器连接到负载，使用加热源激活元件，以及使用冷却源或空气/环境空气来去激活元件。

    Shape memory alloy-based device for controlling or monitoring pressure in a system
    79.
    发明授权
    Shape memory alloy-based device for controlling or monitoring pressure in a system 有权
    形状记忆合金装置，用于控制或监测系统中的压力

    公开(公告)号：US08689771B2

    公开(公告)日：2014-04-08

    申请号：US13173276

    申请日：2011-06-30

    申请人： Nancy L. Johnson ,  Alan L. Browne ,  Xiujie Gao ,  Paul W. Alexander ,  Nicholas W. Pinto, IV ,  Richard J. Skurkis ,  Scott R. Webb

    发明人： Nancy L. Johnson ,  Alan L. Browne ,  Xiujie Gao ,  Paul W. Alexander ,  Nicholas W. Pinto, IV ,  Richard J. Skurkis ,  Scott R. Webb

    IPC分类号： F02M69/54 ,  F02M69/46

    CPC分类号： F16K17/0493 ,  B60C23/0494 ,  B60C29/002 ,  F16K17/046

    摘要： A device is provided that may be adapted to control or monitor the pressure level of a fluid system. The device includes a member composed of a shape memory alloy in a superelastic state. The member is configured to undergo a phase change from a high modulus Austenitic phase to a low modulus Martensitic phase and stretch in response to an activation stress. In one embodiment, the member defines two ends such that one end of the member is operatively connected to a fixed point. Another end of the member is operatively connected to a movable element. As the member stretches in response to the activation stress, the movable element is translated relative to the fixed point. In another embodiment, the member includes two plates with respective holes that are selectively aligned when the first and second plates stretch or deform in response to the activation stress.

    摘要翻译： 提供了可适于控制或监测流体系统的压力水平的装置。 该装置包括由超弹性状态的形状记忆合金构成的构件。 构件被配置为经历从高模量奥氏体相到低模量马氏体相的相变，并响应于活化应力而拉伸。 在一个实施例中，构件限定两个端部，使得构件的一端可操作地连接到固定点。 构件的另一端可操作地连接到可移动元件。 随着构件响应于激活应力而延伸，可移动元件相对于固定点平移。 在另一个实施例中，该构件包括具有相应孔的两个板，当第一和第二板响应于激活应力而拉伸或变形时，其具有选择性对准。

    Receiver/emitter cover utilizing active material actuation
    80.
    发明授权
    Receiver/emitter cover utilizing active material actuation 有权
    接收器/发射器盖利用活性材料致动

    公开(公告)号：US08572895B2

    公开(公告)日：2013-11-05

    申请号：US12181465

    申请日：2008-07-29

    申请人： Craig A. Kollar ,  Xiujie Gao ,  Alan L. Browne ,  Nancy L. Johnson

    发明人： Craig A. Kollar ,  Xiujie Gao ,  Alan L. Browne ,  Nancy L. Johnson

    IPC分类号： H04N7/18

    CPC分类号： G02B23/16

    摘要： A system for protecting an emitter/receiver device, including a cover and an active material actuator operable to selectively cause the cover to move between default protective and open positions, wherein the actuator includes at least one active material element, such as an SMA wire configured to cause the retraction of the cover and present a heating net when activated, and an activation signal source, and preferably further including at least one pulley and/or jack mechanism configured to redirect a displacement force vector, synchronization means, an antagonistic element for biasing the cover towards the protective or open position, and a controller presenting overheating protection through control logic.

    摘要翻译： 一种用于保护发射器/接收器装置的系统，包括盖和活动材料致动器，其可操作以选择性地使盖在默认保护和打开位置之间移动，其中致动器包括至少一个活动材料元件，例如被配置为 导致盖的收缩并且当被激活时呈现加热网，以及激活信号源，并且优选地还包括被配置为重定向位移力矢量的至少一个滑轮和/或插座机构，同步装置，用于偏置的对抗元件 盖子保护或打开位置，以及控制器通过控制逻辑提供过热保护。