METHOD AND APPARATUS FOR INCREASING AND MODULATING THE YIELD SHEAR STRESS OF ELECTRORHEOLOGICAL FLUIDS
    2.
    发明申请
    METHOD AND APPARATUS FOR INCREASING AND MODULATING THE YIELD SHEAR STRESS OF ELECTRORHEOLOGICAL FLUIDS 审中-公开
    用于增加和调节电子流体的叶片剪切应力的方法和装置

    公开(公告)号:WO2003042765A2

    公开(公告)日:2003-05-22

    申请号:PCT/US2002/033878

    申请日:2002-10-23

    IPC: G05B

    CPC classification number: F16F9/532 C10M171/001 C10N2240/20 F15B21/065

    Abstract: A method for increasing and/or modulating the yield shear stress of an electrorheological fluid includes applying a sufficient electric field to the fluid to cause the formation of chains of particles, and then applying a sufficient pressure to the fluid to cause thickening or aggregation of the chains. An apparatus for increasing and/or modulating the transfer of force or torque between two working structures includes an electrorheological fluid and electrodes through which an electric field is applied to the fluid such that particles chains of particles are formed in the fluid and, upon application of pressure to the fluid, the chains thicken or aggregate and improve the force or torque transmission.

    Abstract translation: 用于增加和/或调节电流变流体(10)的屈服剪切应力的方法包括向流体(10)施加足够的电场以引起颗粒链的形成,然后向流体施加足够的压力( 10)引起链的增稠或聚集。 一种用于增加和/或调节两个工作结构(18,22)之间的力或转矩传递的装置(20)包括电流变流体(10)和电极(25,27),电场通过该电流施加到流体 (10),使得在流体(10)中形成颗粒链,并且当对流体(10)施加压力时,链条增稠或聚集并改善力或扭矩传递。

    ELECTROVISCOUS FLUIDS
    7.
    发明申请
    ELECTROVISCOUS FLUIDS 审中-公开
    电磁流体

    公开(公告)号:WO1982004442A1

    公开(公告)日:1982-12-23

    申请号:PCT/GB1982000183

    申请日:1982-06-18

    Inventor: NAT RES DEV

    Abstract: Fluides electrovisqueux (EV) se composant de particules hydrophiles solides dispersees dans des liquides hydrophobes, le liquide contenant un composant de derives de diaryle correspondant a la formule generale I: (FORMULE) dans laquelle R represente CY2, O, S, SO, SO2, SiF2, ou O-SiY2-O, Y1 et X2 sont des halogenes, (m + n) est compris entre 1 et 3 en moyenne, et (p + q) est compris entre 0 et 1 en moyenne. Les fluides EV contenant ces nouveaux composants possedent generalement des proprietes ameliorees en ce qui concerne les viscosites inferieures, les conductivites electriques, les toxicites et les points de congelation. Dans un mode de realisation preferentielle, le composant est un melange de diphenylmethanes bromes dans lequel R represente CH2, n = 0, X1 = Br, (m + n) est approximativement 1, et (p + q) = 0.

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