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    • 5. 发明授权
    • Non-stationary multi-frequency vibration energy harvesting with tunable electrical impedance
    • 具有可调谐电阻抗的非平稳多频振动能量采集
    • US09595893B2
    • 2017-03-14
    • US13942397
    • 2013-07-15
    • Murat OcalanJahir PabonSamuel ChangJeffrey Lang
    • Murat OcalanJahir PabonSamuel ChangJeffrey Lang
    • H02N11/00H02N2/18H03H11/48H03H19/00
    • H02N11/002H02N2/181H03H11/481H03H11/485H03H19/006
    • Harvesting energy from non-stationary, multi-frequency mechanical vibrations using a tunable electrical circuit. In an embodiment, an apparatus for converting vibrational energy to electrical energy includes a vibrational energy harvester having a transducer for generating time-varying electrical signals in response to environmental vibration; at least one power storage device; a switching network operably coupled between the transducer of the vibrational energy harvester and the at least one power storage device, wherein the switching network includes a plurality of switching elements each defining a switchable current path that is controlled by a control signal supplied to the respective switching element; and electronics configured to generate the control signals for supply to the switching elements of the switching network, the electronics including first circuitry, second circuitry, third circuitry, and fourth circuitry.
    • 使用可调谐电路从非平稳,多频率机械振动中收获能量。 在一个实施例中,用于将振动能转换成电能的装置包括振动能量收集器,其具有响应于环境振动产生时变电信号的换能器; 至少一个蓄电装置; 可操作地耦合在所述振动能量收集器的所述换能器和所述至少一个功率存储装置之间的开关网络,其中所述开关网络包括多个开关元件,每个开关元件限定由提供给相应开关的控制信号控制的可切换电流路径 元件; 以及电子器件,被配置为产生用于供应到开关网络的开关元件的控制信号,所述电子器件包括第一电路,第二电路,第三电路和第四电路。
    • 8. 发明申请
    • FIELD-RESPONSIVE FLUIDS
    • 现场响应流体
    • US20090211751A1
    • 2009-08-27
    • US12112003
    • 2008-04-30
    • Murat OcalanHuilin TuNathan WicksAgathe RobissonDominique Guillot
    • Murat OcalanHuilin TuNathan WicksAgathe RobissonDominique Guillot
    • E21B43/25
    • C10M171/001C10N2230/60C10N2240/22C10N2240/401H01F1/442H01F1/445H01F1/447Y10T428/32
    • A field-responsive fluid which enters a semi-solid state in the presence of an energy field is improved by use of a plurality of energy field responsive particles which form chains in response to the energy field. The particles can be (a) composite particles in which at least one field-responsive member having a first density is attached to at least one member having a second density that is lower than the first density, (b) shaped particles in which at least one field-responsive member has one or more inclusions, and (c) combinations thereof. The particles improve the field-responsive fluid by reducing density without eliminating field-responsive properties which afford utility. Further, a multi-phase base fluid including a mixture of two or more substances, at least two of which are immiscible, may be used. The multi-phase base fluid improves the field-responsive fluid because surface tension between the boundaries of the immiscible substances in conjunction with chains formed by field-responsive particles tends to stop or retard creep flow, resulting an improved dynamic or static seal.
    • 通过使用响应于能量场形成链的多个能量场响应颗粒来改善在存在能量场的情况下进入半固体状态的场响应流体。 颗粒可以是(a)复合颗粒,其中具有第一密度的至少一个场响应构件附着到具有低于第一密度的第二密度的至少一个构件,(b)成形颗粒,其中至少 一个场响应构件具有一个或多个夹杂物,和(c)它们的组合。 颗粒通过降低密度来改善场响应流体,而不消除提供效用的场响应特性。 此外,可以使用包括两种或更多种物质的混合物的多相基流体,其中至少两种物质是不混溶的。 多相基础流体改善了场响应流体,因为不可混溶物质的边界与由场响应颗粒形成的链结合的表面张力倾向于停止或延缓蠕变流动,导致改进的动态或静态密封。
    • 9. 发明申请
    • ACTUATION AND PUMPING WITH FIELD-RESPONSIVE FLUIDS
    • 使用现场响应流体进行泵浦和泵送
    • US20100051517A1
    • 2010-03-04
    • US12201699
    • 2008-08-29
    • Murat OcalanNathan Wicks
    • Murat OcalanNathan Wicks
    • B03C1/24B07C5/344
    • F16D3/80B03C1/0332B03C1/286B03C1/288B03C2201/18
    • Actuators, pumps, clutches, brakes and other assemblies may utilize field-responsive fluids that include a plurality of particles suspended in a base fluid. A positive displacement pump is provided by causing particles to align into chains and walls which inhibit traversal by fluid within a fluid enclosure. The field which aligns the particles is moved, thereby causing the walls of aligned particles to move. Because traversal of the walls by the fluid is inhibited, fluid is displaced by movement of the walls of aligned particles. A reciprocating positive displacement pump can be provided by ceasing particle alignment and returning the particles to a starting position. Objects may also be moved in response to collision with chains or walls of aligned particles that move in response to field movement. Fluid circulation features are provided for preventing agglomeration of particles when translating torque between plates in relative rotational movement.
    • 致动器,泵,离合器,制动器和其它组件可以利用包括悬浮在基础流体中的多个颗粒的场响应流体。 通过使颗粒排列成阻止流体外壳内的流体穿过的链和壁来提供容积式泵。 使颗粒对准的区域移动,从而导致排列的颗粒的壁移动。 因为阻止了流体对壁的穿透,所以通过排列的颗粒的壁的运动来使流体发生位移。 可以通过停止颗粒对准并将颗粒返回到起始位置来提供往复式容积式泵。 响应于与响应于场移动而移动的对准的粒子的链或壁的碰撞,物体也可以移动。 提供了流体循环特征,用于在相对旋转运动中平移板之间的扭矩时防止颗粒的聚集。
    • 10. 发明授权
    • Field-responsive fluids
    • 场响应流体
    • US08506837B2
    • 2013-08-13
    • US12112003
    • 2008-04-30
    • Murat OcalanHuilin TuNathan WicksAgathe RobissonDominique Guillot
    • Murat OcalanHuilin TuNathan WicksAgathe RobissonDominique Guillot
    • B32B15/18C04B35/26E21B31/06
    • C10M171/001C10N2230/60C10N2240/22C10N2240/401H01F1/442H01F1/445H01F1/447Y10T428/32
    • A field-responsive fluid which enters a semi-solid state in the presence of an energy field is improved by use of a plurality of energy field responsive particles which form chains in response to the energy field. The particles can be (a) composite particles in which at least one field-responsive member having a first density is attached to at least one member having a second density that is lower than the first density, (b) shaped particles in which at least one field-responsive member has one or more inclusions, and (c) combinations thereof. The particles improve the field-responsive fluid by reducing density without eliminating field-responsive properties which afford utility. Further, a multi-phase base fluid including a mixture of two or more substances, at least two of which are immiscible, may be used. The multi-phase base fluid improves the field-responsive fluid because surface tension between the boundaries of the immiscible substances in conjunction with chains formed by field-responsive particles tends to stop or retard creep flow, resulting an improved dynamic or static seal.
    • 通过使用响应于能量场形成链的多个能量场响应颗粒来改善在存在能量场的情况下进入半固体状态的场响应流体。 颗粒可以是(a)复合颗粒,其中具有第一密度的至少一个场响应构件附着到具有低于第一密度的第二密度的至少一个构件,(b)成形颗粒,其中至少 一个场响应构件具有一个或多个夹杂物,和(c)它们的组合。 颗粒通过降低密度来改善场响应流体,而不消除提供效用的场响应特性。 此外,可以使用包括两种或更多种物质的混合物的多相基流体,其中至少两种物质是不混溶的。 多相基础流体改善了场响应流体,因为不可混溶物质的边界与由场响应颗粒形成的链结合的表面张力倾向于停止或延缓蠕变流动,导致改进的动态或静态密封。