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    • 14. 发明申请
    • Active material apparatus with activating thermoelectric device thereon and method of fabrication
    • 活性物质装置及其制造方法
    • US20090020188A1
    • 2009-01-22
    • US11780502
    • 2007-07-20
    • John C. UlicnyJihui YangMark W. Verbrugge
    • John C. UlicnyJihui YangMark W. Verbrugge
    • C22F3/00
    • F25B21/04C22F3/00
    • An active material assembly is provided having a thermally-activated active material apparatus with an elongated, non-planar shape and a thermoelectric device in thermal contact therewith. The thermoelectric device is characterized by a thermal differential when current flows through the device to activate the thermally-activated active material apparatus, thereby altering at least one dimension thereof. Multiple discrete thermoelectric devices may be in thermal contact with the active material apparatus and electrically in parallel with one another. The active material apparatus, which may be multiple active material components, each with one of the thermoelectric devices thereon, may be encased within a flexible electronic-insulating material to form an articulated active material assembly that can achieve different geometric shapes by separately activating one or more of the different thermoelectric devices. A method of fabricating an articulated active material assembly is also provided.
    • 提供了具有热活化活性材料装置的活性材料组件,其具有细长的非平面形状和与其热接触的热电装置。 热电装置的特征在于电流流过装置时的热差,以激活热活化的活性材料装置,从而改变其至少一个维度。 多个分立的热电装置可以与活性材料装置热接触并彼此电并联。 活性材料装置可以是多个活性材料组分,每个活性材料组分各自具有其中的一个热电装置,其可以被包裹在柔性电子绝缘材料内以形成铰接的活性材料组件,其可以通过单独地激活一个或多个 更多的不同的热电器件。 还提供了一种制造铰接式活性材料组件的方法。
    • 15. 发明授权
    • Airflow control devices with planar surfaces
    • 具有平面表面的气流控制装置
    • US07147271B2
    • 2006-12-12
    • US11436314
    • 2006-05-18
    • Jan H. AaseAlan L. BrowneNancy L. JohnsonJohn C. Ulicny
    • Jan H. AaseAlan L. BrowneNancy L. JohnsonJohn C. Ulicny
    • B60J1/00
    • B60K11/085B60H2001/00092B62D35/00B64C23/00B64C2027/7288F15D1/10Y02T10/88Y02T50/34
    • An airflow control device comprises a body and an active material in operative communication with the body. The active material, such as a shape memory material, is operative to change at least one attribute in response to an activation signal. The active material can change its shape, dimensions and/or stiffness producing a change in at least one feature of the airflow control device such as shape, dimension, location, orientation, and/or stiffness to control vehicle airflow to better suit changes in driving conditions such as the need for increased airflow through the radiator due to increases in engine coolant temperature. As such, the device improves vehicle fuel economy while maintaining proper engine cooling. An activation device, controller and sensors may be employed to further control the change in at least one feature of the airflow control device such as shape, dimension, location, orientation, and/or stiffness of the device. A method for controlling vehicle airflow selectively introduces an activation signal to initiate a change of at least one feature of the device that can be reversed upon discontinuation of the activation signal.
    • 气流控制装置包括与主体可操作地连通的主体和活动材料。 诸如形状记忆材料的活性材料可操作以响应于激活信号改变至少一个属性。 活性材料可以改变其形状,尺寸和/或刚度,从而产生气流控制装置的至少一个特征的变化,例如形状,尺寸,位置,取向和/或刚度,以控制车辆气流,以更好地适应驾驶中的变化 因为由于发动机冷却液温度升高,需要增加通过散热器的气流。 因此,该装置在保持适当的发动机冷却的同时提高了车辆燃料经济性。 可以使用激活装置,控制器和传感器来进一步控制气流控制装置的至少一个特征的变化,例如装置的形状,尺寸,位置,取向和/或刚度。 用于控制车辆气流的方法选择性地引入激活信号以启动在停止激活信号时可以反转的装置的至少一个特征的改变。
    • 18. 发明申请
    • HYBRID CODED MAGNETS AND SMA POSITIVE DRIVE CLUTCH
    • 混合编码磁铁和SMA正极驱动离合器
    • US20130270056A1
    • 2013-10-17
    • US13447922
    • 2012-04-16
    • Nilesh D. MANKAMEJohn C. UlicnyShivaram Ac
    • Nilesh D. MANKAMEJohn C. UlicnyShivaram Ac
    • F16D27/14
    • F16D23/02F16D23/12F16D27/01F16D37/008H02K21/027H02K49/104H02K2213/09
    • A clutch for selective transmission of torque and power, utilizing pairs of coded arrays of permanent magnets affixed respectively to the driving member and the driven member. A shape memory alloy actuator brings to driving member and the driven member into proximity to engage the clutch via a higher-order mutual magnetic correspondence between the coded magnetic regions of the permanent magnet arrays. Also provided is a clutch having a magnetorheological fluid between the driving member and the driven member, to increase the torque and power transfer through the fluid when its viscosity is increased by the magnetic field of the arrays in proximity. Sets of corresponding teeth on the driving member and driven member mesh when the rotation of the members is synchronized, providing positive direct drive to prolong the service life of the fluid.
    • 用于选择性地传递扭矩和动力的离合器,利用分别固定在驱动构件和被驱动构件上的永磁体编码阵列对。 形状记忆合金致动器通过永磁体阵列的编码磁区之间的较高阶的相互对应的对应关系使驱动构件和从动构件接近以接合离合器。 还提供了一种在驱动构件和从动构件之间具有磁流变流体的离合器,当其粘度随着阵列的磁场接近而增加时,增加通过流体的扭矩和功率传递。 当构件的旋转同步时,驱动构件和从动构件网上的相应齿的组提供正直接驱动以延长流体的使用寿命。