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    • 4. 发明授权
    • Electrostatically addressable microvalves
    • 静电寻址微型阀
    • US08561963B2
    • 2013-10-22
    • US11959778
    • 2007-12-19
    • Ashish PattekarEugene M ChowEric Peeters
    • Ashish PattekarEugene M ChowEric Peeters
    • F16K31/128
    • F16K99/0001B01L3/502738B01L2200/12B01L2300/0819B01L2300/0887B01L2400/0655F16K99/0026Y10T137/0318Y10T137/0391Y10T137/87249
    • An improved microvalve is described. The microvalve includes a corresponding actuation aperture in an actuation aperture layer. A control fluid flows through the actuation aperture. The flow of the control fluid is controlled by an electric field typically applied via a charge distribution near an actuation aperture layer. In one embodiment, the electric field may adjust the opening and closing of the actuation aperture thereby controlling the flow of the control fluid. In a second embodiment, the control fluid is an electrorheological fluid where the electric field controls the viscosity of the ER fluid thereby controlling fluid flow through the actuation aperture. In both embodiments the flow of the control fluid controls stretching of a flexible membrane formed along the wall of a conduit through which a fluid to be controlled flows. The stretching of the flexible membrane controlling the flow of the main fluid to be controlled.
    • 描述了改进的微型阀。 微型阀包括致动孔层中相应的致动孔。 控制流体流过致动孔。 控制流体的流动由通常通过致动孔层附近的电荷分布施加的电场来控制。 在一个实施例中,电场可以调节致动孔的打开和关闭,从而控制控制流体的流动。 在第二实施例中,控制流体是电流变流体,其中电场控制ER流体的粘度,从而控制通过致动孔的流体流动。 在两个实施例中,控制流体的流动控制沿导管的壁形成的柔性膜的拉伸,待控制的流体通过该壁流动。 柔性膜的拉伸控制要控制的主流体的流动。