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117 条记录 (耗时 0.047 秒)

    METHOD OF CONTROLLING A THERMAL ENERGY HARVESTING SYSTEM
    31.
    发明申请
    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：US20110120111A1

    公开(公告)日：2011-05-26

    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. Mc Knight ,  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. Mc Knight ,  Christopher P. Henry

    IPC分类号： F01B29/10

    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。

    Apparatus and method of controlling phase transformation temperature of a shape memory alloy
    35.
    发明授权
    Apparatus and method of controlling phase transformation temperature of a shape memory alloy 有权
    控制形状记忆合金相变温度的装置及方法

    公开(公告)号：US08741076B2

    公开(公告)日：2014-06-03

    申请号：US13177599

    申请日：2011-07-07

    申请人： Xiujie Gao ,  Alan L. Browne ,  Paul W. Alexander ,  Nancy L. Johnson ,  Wayne Brown

    发明人： Xiujie Gao ,  Alan L. Browne ,  Paul W. Alexander ,  Nancy L. Johnson ,  Wayne Brown

    IPC分类号： F03G7/06

    CPC分类号： F03G7/065

    摘要： A device and method for controlling a phase transformation temperature of a shape memory alloy is provided. The device includes a primary wire composed of the shape memory alloy. The primary wire defines first and second ends, the first end being attached to a fixed structure and the second end being able to displace. An activation source is thermally coupled to the wire and is operable to selectively cause the primary wire to reversibly transform from a Martensitic phase to an Austenitic phase during a cycle. A loading element is operatively connected to the primary wire and configured to selectively increase a tensile load on the primary wire when an ambient temperature is at or above a threshold temperature, thereby increasing the phase transformation temperature of the primary wire.

    摘要翻译： 提供一种用于控制形状记忆合金的相变温度的装置和方法。 该装置包括由形状记忆合金构成的初级线。 主线限定第一端和第二端，第一端附接到固定结构，第二端能够移位。 激活源热耦合到导线，并且可操作地选择性地使主线在一个循环期间从马氏体相可逆地转变成奥氏体相。 负载元件可操作地连接到主线，并且被配置为当环境温度处于或高于阈值温度时选择性地增加主线上的拉伸负载，从而增加初级线的相变温度。

    Method of starting a heat engine
    36.
    发明授权
    Method of starting a heat engine 有权
    起动热机的方法

    公开(公告)号：US08701405B2

    公开(公告)日：2014-04-22

    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： F01B29/10

    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。

    SHAPE MEMORY ALLOY ACTUATED HVAC OUTLET AIRFLOW BAFFLE CONTROLLERS
    37.
    发明申请
    SHAPE MEMORY ALLOY ACTUATED HVAC OUTLET AIRFLOW BAFFLE CONTROLLERS 有权
    形状记忆合金制冷空调出风口气流控制器

    公开(公告)号：US20120184195A1

    公开(公告)日：2012-07-19

    申请号：US13253150

    申请日：2011-10-05

    申请人： Alan L. Browne ,  Nancy L. Johnson ,  Michael E. Nishek ,  James Holbrook Brown ,  Xiujie Gao

    发明人： Alan L. Browne ,  Nancy L. Johnson ,  Michael E. Nishek ,  James Holbrook Brown ,  Xiujie Gao

    IPC分类号： B60H1/24

    CPC分类号： B60H1/3421 ,  B60H2001/3471

    摘要： A baffle controller for moving a baffle disposed within an HVAC outlet housing between an open position and a closed position to control airflow through an HVAC outlet in a vehicle includes a Shape Memory Alloy (SMA) actuator that is controlled and actuated by an electrical signal. The SMA actuator rotates a main lever that rotates a valve plate. The valve plate is attached to the baffle such that the baffle rotates with the valve plate. The baffle controller may include a position biasing device that increases a position holding ability of the baffle controller, and a cut-off switch that interrupts the electrical signal to the SMA actuator to prevent over-rotating the baffle.

    摘要翻译： 挡板控制器，用于移动设置在HVAC出口壳体内的挡板在打开位置和关闭位置之间，以控制通过车辆HVAC出口的气流，包括由电信号控制和致动的形状记忆合金（SMA）致动器。 SMA致动器旋转旋转阀板的主杆。 阀板连接到挡板，使得挡板与阀板一起旋转。 挡板控制器可以包括增加挡板控制器的位置保持能力的位置偏置装置，以及中断到SMA致动器的电信号以防止挡板过度旋转的截止开关。

    Active material actuator assembly
    40.
    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。