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154 条记录 (耗时 0.051 秒)

    METHOD OF STARTING A HEAT ENGINE
    41.
    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。

    Method of controlling a thermal energy harvesting system
    42.
    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。

    ENERGY HARVESTING SYSTEM FOR A VEHICLE
    46.
    发明申请
    ENERGY HARVESTING SYSTEM FOR A VEHICLE 有权
    用于车辆的能量采集系统

    公开(公告)号：US20110120115A1

    公开(公告)日：2011-05-26

    申请号：US12947914

    申请日：2010-11-17

    申请人： Paul W. Alexander ,  Alan L. Browne ,  Nancy L. Johnson ,  Nilesh D. Mankame ,  Xiujie Gao ,  Geoffrey P. McKnight ,  Andrew C. Keefe ,  Christopher P. Henry

    发明人： Paul W. Alexander ,  Alan L. Browne ,  Nancy L. Johnson ,  Nilesh D. Mankame ,  Xiujie Gao ,  Geoffrey P. McKnight ,  Andrew C. Keefe ,  Christopher P. Henry

    IPC分类号： F02G1/04 ,  F16H7/08 ,  F16H7/12

    CPC分类号： F03G7/065 ,  F02G5/04 ,  F16G1/26 ,  F16H7/02 ,  Y02T10/166

    摘要： An energy harvesting system includes a heat engine and a component configured to be driven by operation of the heat engine. The heat engine includes a first member, a second member, a shape memory alloy material, and a tensioner. The second member is spaced from the first member. The shape memory alloy material operatively interconnects the first member and the second member. The shape memory alloy material is configured to selectively change crystallographic phase from martensite to austenite and thereby contract in response to exposure to a first temperature. The shape memory alloy material is also configured to selectively change crystallographic phase from austenite to martensite and thereby expand in response to exposure to a second temperature. The tensioner is configured to apply tension to the shape memory alloy material as the shape memory alloy material selectively expands and contracts such that the shape memory alloy material is taut.

    摘要翻译： 能量收集系统包括热引擎和构造成由热机的操作驱动的部件。 热机包括第一构件，第二构件，形状记忆合金材料和张紧器。 第二构件与第一构件间隔开。 形状记忆合金材料可操作地将第一构件和第二构件相互连接。 形状记忆合金材料构造成选择性地将结晶相从马氏体转变为奥氏体，从而响应于暴露于第一温度而收缩。 形状记忆合金材料还被配置为选择性地将结晶相从奥氏体转变为马氏体，从而响应于暴露于第二温度而膨胀。 张紧器构造成当形状记忆合金材料选择性地膨胀和收缩使得形状记忆合金材料拉紧时，向形状记忆合金材料施加张力。

    Mechanical System with an Active Materials-Based Actuator
    48.
    发明申请
    Mechanical System with an Active Materials-Based Actuator 有权
    具有活性材料的致动器的机械系统

    公开(公告)号：US20090299502A1

    公开(公告)日：2009-12-03

    申请号：US12130227

    申请日：2008-05-30

    申请人： Nilesh D. Mankame ,  Alan L. Browne ,  Paul W. Alexander ,  Nancy L. Johnson ,  Norman K. Bucknor

    发明人： Nilesh D. Mankame ,  Alan L. Browne ,  Paul W. Alexander ,  Nancy L. Johnson ,  Norman K. Bucknor

    IPC分类号： G05B11/32

    CPC分类号： G05B11/32

    摘要： A mechanical system selectively imparts a prescribed motion to an output load using two or more actuators, including at least one having an active material element. The output load can be a locking member when the system is a vehicle transmission, a shuttle car of a linear system, or another device. A controller determines a total motive force required for imparting the prescribed motion, and selectively commands a combination of the actuators to provide the total motive force, apportioning the total motive force between the various actuators to optimize the performance of the system. An algorithm determines which combination of the actuators is the most suitable in moving the output load, and continuously modified this combination as needed as the output load is moved. The other actuator or actuators are then selectively energized as needed to provide the total motive force depending on this suitability determination.

    摘要翻译： 机械系统使用两个或更多个致动器选择性地向输出负载施加规定的运动，包括至少一个具有活性材料元件的致动器。 当系统是车辆传动装置时，输出负载可以是锁定构件，线性系统的穿梭车或另一装置。 控制器确定用于施加规定运动所需的总动力，并且选择性地命令致动器的组合以提供总动力，分配各种致动器之间的总动力，以优化系统的性能。 算法确定致动器的哪个组合最适合于移动输出负载，并且在输出负载移动时根据需要连续地修改该组合。 然后根据需要选择性地激励其他致动器或致动器，以根据这种适用性确定提供总动力。

    Energy harvesting system for a vehicle
    50.
    发明授权
    Energy harvesting system for a vehicle 有权
    车辆能量采集系统

    公开(公告)号：US08793993B2

    公开(公告)日：2014-08-05

    申请号：US12947914

    申请日：2010-11-17

    申请人： Paul W. Alexander ,  Alan L. Browne ,  Nancy L. Johnson ,  Nilesh D. Mankame ,  Xiujie Gao ,  Geoffrey P. McKnight ,  Andrew C. Keefe ,  Christopher P. Henry

    发明人： Paul W. Alexander ,  Alan L. Browne ,  Nancy L. Johnson ,  Nilesh D. Mankame ,  Xiujie Gao ,  Geoffrey P. McKnight ,  Andrew C. Keefe ,  Christopher P. Henry

    IPC分类号： F01B29/10 ,  F02G1/04

    CPC分类号： F03G7/065 ,  F02G5/04 ,  F16G1/26 ,  F16H7/02 ,  Y02T10/166

    摘要： An energy harvesting system includes a heat engine and a component configured to be driven by operation of the heat engine. The heat engine includes a first member, a second member, a shape memory alloy material, and a tensioner. The second member is spaced from the first member. The shape memory alloy material operatively interconnects the first member and the second member. The shape memory alloy material is configured to selectively change crystallographic phase from martensite to austenite and thereby contract in response to exposure to a first temperature. The shape memory alloy material is also configured to selectively change crystallographic phase from austenite to martensite and thereby expand in response to exposure to a second temperature. The tensioner is configured to apply tension to the shape memory alloy material as the shape memory alloy material selectively expands and contracts such that the shape memory alloy material is taut.

    摘要翻译： 能量收集系统包括热引擎和构造成由热机的操作驱动的部件。 热机包括第一构件，第二构件，形状记忆合金材料和张紧器。 第二构件与第一构件间隔开。 形状记忆合金材料可操作地将第一构件和第二构件相互连接。 形状记忆合金材料构造成选择性地将结晶相从马氏体转变为奥氏体，从而响应于暴露于第一温度而收缩。 形状记忆合金材料还被配置为选择性地将结晶相从奥氏体转变为马氏体，从而响应于暴露于第二温度而膨胀。 张紧器构造成当形状记忆合金材料选择性地膨胀和收缩使得形状记忆合金材料拉紧时，向形状记忆合金材料施加张力。