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117 条记录 (耗时 0.032 秒)

    Active material actuator assembly
    12.
    发明授权
    Active material actuator assembly 有权
    活动材料执行器组件

    公开(公告)号：US07980074B2

    公开(公告)日：2011-07-19

    申请号：US11501417

    申请日：2006-08-09

    申请人： Xiujie Gao ,  Alan L. Browne ,  Nancy L. Johnson ,  Ukpai I. Ukpai

    发明人： Xiujie Gao ,  Alan L. Browne ,  Nancy L. Johnson ,  Ukpai I. Ukpai

    IPC分类号： F01B29/10

    CPC分类号： F03G7/065 ,  H02N2/02 ,  H02N2/10

    摘要： Active material actuator assemblies are provided that enable simplified control systems and faster actuator cycle times. A movable member is provided that has multiple active material components operatively connected to it. The active material components are separately selectively activatable for moving the movable member. Movement of the movable member via activation of a first of the active material components triggers activation of the second active material component to further move the movable member. Alternatively or in addition, previously activated active material components are protected from undesired stretching during activation of another active material component or, when desired, an active material component may be reset via activation of another of the active material components in order to prepare it for subsequent activation.

    摘要翻译： 提供了主动材料致动器组件，其实现简化的控制系统和更快的致动器循环时间。 提供了具有可操作地连接到其上的多个活性材料部件的可移动部件。 活性材料组分可分开选择性活化，以移动可动件。 通过激活第一活性材料组件来移动可移动构件，触发第二活性材料组分的启动以进一步移动可移动构件。 或者或另外，预先活化的活性材料组分在另一种活性材料组分的活化期间被保护而不受不期望的拉伸，或者当需要时，活性材料组分可以通过另一种活性材料组分的活化来复位，以便随后 激活。

    Heat Transport System and Method
    13.
    发明申请
    Heat Transport System and Method 有权
    热运输系统和方法

    公开(公告)号：US20110139395A1

    公开(公告)日：2011-06-16

    申请号：US12639527

    申请日：2009-12-16

    申请人： Alan L. Browne ,  Marten Wittorf ,  Nancy L. Johnson ,  Patrick B. Usoro ,  Paul W. Alexander ,  James Holbrook Brown ,  Xiujie Gao

    发明人： Alan L. Browne ,  Marten Wittorf ,  Nancy L. Johnson ,  Patrick B. Usoro ,  Paul W. Alexander ,  James Holbrook Brown ,  Xiujie Gao

    IPC分类号： B60H1/00 ,  F28D21/00 ,  B60H1/22

    CPC分类号： F03G7/065 ,  B60K1/00 ,  B60K2001/005

    摘要： A heat transport system includes a fluid, a heat engine, and a component. The fluid has a first fluid region at a first temperature and a second fluid region at a second temperature that is different from the first temperature. The heat engine includes a shape-memory alloy disposed in contact with each of the first fluid region and the second fluid region. The heat engine is operable to transfer heat from one of the first fluid region and the second fluid region to the other of the first fluid region and the second fluid region in response to the crystallographic phase of the shape-memory alloy.

    摘要翻译： 热输送系统包括流体，热引擎和部件。 流体具有在第一温度下的第一流体区域和与第一温度不同的第二温度的第二流体区域。 热引擎包括与第一流体区域和第二流体区域中的每一个接触的形状记忆合金。 热引擎可操作以响应于形状记忆合金的结晶相，将热量从第一流体区域和第二流体区域中的一个传递到第一流体区域和第二流体区域中的另一个。

    METHOD OF STARTING A HEAT ENGINE
    14.
    发明申请
    METHOD OF STARTING A HEAT ENGINE 有权
    启动发动机的方法

    公开(公告)号：US20110120117A1

    公开(公告)日：2011-05-26

    申请号：US12947924

    申请日：2010-11-17

    申请人： Paul W. Alexander ,  Alan L. Browne ,  Nancy L. Johnson ,  Patrick B. Usoro ,  Nilesh D. Mankame ,  Xiujie Gao

    发明人： Paul W. Alexander ,  Alan L. Browne ,  Nancy L. Johnson ,  Patrick B. Usoro ,  Nilesh D. Mankame ,  Xiujie Gao

    IPC分类号： F03G7/06

    CPC分类号： F03G7/065

    摘要： A method of starting a heat engine includes exposing an element of the heat engine to a source of thermal energy provided by a temperature difference between a heat source having a first temperature and a heat sink having a second temperature that is lower than the first temperature. The element is formed from a first shape memory alloy having a crystallographic phase changeable between austenite and martensite at a first transformation temperature in response to the temperature difference between the heat source and the heat sink. The method further includes changing the crystallographic phase of the first shape memory alloy to thereby convert thermal energy to mechanical energy, and inducing initial movement of the element in a desired operational direction to thereby start the heat engine.

    摘要翻译： 启动热机的方法包括将热机的元件暴露于具有第一温度的热源和具有低于第一温度的第二温度的散热器之间的温度差的热能源。 该元件由第一形状记忆合金形成，该合金具有响应于热源和散热器之间的温差而在第一相变温度下具有在奥氏体和马氏体之间变化的结晶相。 该方法还包括改变第一形状记忆合金的结晶相，从而将热能转化为机械能，并引起元件在期望的操作方向的初始移动，从而起动热机。

    TEMPERATURE ADAPTIVE DYNAMIC SHAFT SEAL ASSEMBLY
    16.
    发明申请
    TEMPERATURE ADAPTIVE DYNAMIC SHAFT SEAL ASSEMBLY 有权
    温度自适应动力轴密封组件

    公开(公告)号：US20100102518A1

    公开(公告)日：2010-04-29

    申请号：US12635882

    申请日：2009-12-11

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

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

    IPC分类号： F16J15/32

    CPC分类号： F16J15/164 ,  F16J15/3212 ,  F16J15/3236

    摘要： A seal assembly configured for sealing a dynamic shaft includes an elastic seal member disposable in sealing communication with the dynamic shaft. The seal assembly further includes a coil spring and a shape memory alloy element. The coil spring is disposed in contact with the elastic seal member and configured for applying a compressive force to the elastic seal member. The shape memory alloy element is configured for applying pressure to the coil spring to thereby augment the compressive force.

    摘要翻译： 构造成用于密封动态轴的密封组件包括一次性地与动态轴密封连接的弹性密封件。 密封组件还包括螺旋弹簧和形状记忆合金元件。 螺旋弹簧设置成与弹性密封构件接触并且构造成向弹性密封构件施加压缩力。 形状记忆合金元件构造成用于向螺旋弹簧施加压力，从而增加压缩力。

    RECEIVER/EMITTER COVER UTILIZING ACTIVE MATERIAL ACTUATION
    17.
    发明申请
    RECEIVER/EMITTER COVER UTILIZING ACTIVE MATERIAL ACTUATION 有权
    接收器/发射器盖使用有效的材料执行

    公开(公告)号：US20100027119A1

    公开(公告)日：2010-02-04

    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： G02B23/16

    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。

    Method of controlling a thermal energy harvesting system
    19.
    发明授权
    Method of controlling a thermal energy harvesting system 有权
    控制热能收集系统的方法

    公开(公告)号：US09038379B2

    公开(公告)日：2015-05-26

    申请号：US12908191

    申请日：2010-10-20

    申请人： Paul W. Alexander ,  Alan L. Browne ,  Nancy L. Johnson ,  Patrick B. Usoro ,  Nilesh D. Mankame ,  Xiujie Gao ,  Geoffrey P. McKnight ,  Christopher P. Henry

    发明人： Paul W. Alexander ,  Alan L. Browne ,  Nancy L. Johnson ,  Patrick B. Usoro ,  Nilesh D. Mankame ,  Xiujie Gao ,  Geoffrey P. McKnight ,  Christopher P. Henry

    IPC分类号： F01B29/10 ,  F03G7/06

    CPC分类号： F01B29/10 ,  F03G7/065

    摘要： A method of controlling an energy harvesting system that converts excess thermal energy into mechanical energy and includes a Shape Memory Alloy (SMA) member, includes obtaining current operational parameters of the energy harvesting system, such as a maximum temperature, a minimum temperature and a cycle frequency of the SMA member. The current operational parameters are compared to a target operating condition of the energy harvesting system to determine if the current operational parameters are within a pre-defined range of the target operating condition. If the current operational parameters are not within the pre-defined range of the target operating condition, then a heat transfer rate to, a heat transfer rate from or a cycle frequency of the SMA member is adjusted to maintain operation of the energy harvesting system within the pre-defined range of the target operating condition to maximize efficiency of the energy harvesting system.

    摘要翻译： 一种控制能量收集系统的方法，其将过剩的热能转换成机械能并且包括形状记忆合金（SMA）构件，包括获得能量收集系统的当前操作参数，例如最高温度，最低温度和循环 SMA部件的频率。 将当前操作参数与能量收集系统的目标操作条件进行比较，以确定当前操作参数是否在目标操作条件的预定义范围内。 如果当前的操作参数不在目标操作条件的预定范围内，则调整传热速率，从SMA构件的传热速率或循环频率，以维持能量收集系统的运行 目标操作条件的预定义范围，以最大限度地提高能量收集系统的效率。