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    Magnetorheological fluid compositions
    4.
    发明授权
    Magnetorheological fluid compositions 失效
    磁流变液组成

    公开(公告)号：US07419616B2

    公开(公告)日：2008-09-02

    申请号：US11202414

    申请日：2005-08-11

    Applicant: John C. Ulicny ,  Yang-Tse Cheng ,  Mark A. Golden ,  Keith S. Snavely

    Inventor： John C. Ulicny ,  Yang-Tse Cheng ,  Mark A. Golden ,  Keith S. Snavely

    IPC: H01F1/44

    CPC classification number: H01F1/44

    Abstract: A magnetorheological fluid composition comprising a carrier fluid; and a plurality of high aspect ratio magnetizable particles, wherein the aspect ratio of the high aspect ratio magnetizable particles is greater than 1.5. Optionally, the high aspect ratio magnetizable particles can have interlocking structures comprising male component and a female component. Still further, a magnetorheological fluid composition can comprise low aspect ratio magnetizable particles having the interlocking structures, wherein the aspect ratio of the low aspect ratio magnetizable particles is 1 to 1.5.

    Abstract translation: 一种磁流变流体组合物，其包含载体流体; 以及多个高纵横比可磁化颗粒，其中高纵横比可磁化颗粒的纵横比大于1.5。 可选地，高纵横比可磁化颗粒可以具有包括阳部件和阴部件的互锁结构。 此外，磁流变流体组合物可以包含具有互锁结构的低纵横比可磁化颗粒，其中低纵横比可磁化颗粒的纵横比为1至1.5。

    Magnetorheological fluids
    5.
    发明授权
    Magnetorheological fluids 失效
    磁流变液

    公开(公告)号：US06932917B2

    公开(公告)日：2005-08-23

    申请号：US10462481

    申请日：2003-06-17

    Applicant: Mark A. Golden ,  John C. Ulicny ,  Keith S. Snavely ,  Anthony L. Smith

    Inventor： Mark A. Golden ,  John C. Ulicny ,  Keith S. Snavely ,  Anthony L. Smith

    IPC: H01F1/28 ,  H01F1/44

    CPC classification number: H01F1/28 ,  H01F1/447

    Abstract: One embodiment of the invention includes an MR fluid of improved durability. The MR fluid is particularly useful in devices that subject the fluid to substantial centrifugal forces, such as large fan clutches. A particular embodiment includes a magnetorheological fluid including 10 to 14 wt % of a hydrocarbon-based liquid, 86 to 90 wt % of bimodal magnetizable particles, and 0.05 to 0.5 wt % fumed silica.

    Abstract translation: 本发明的一个实施例包括具有改善的耐久性的MR流体。 MR流体在使流体具有大量离心力的装置中特别有用，例如大型风扇离合器。 一个具体的实施方案包括磁流变流体，其包括10至14重量％的基于烃的液体，86至90重量％的双峰可磁化颗粒和0.05至0.5重量％的热解法二氧化硅。

    Magnetorheological compositions including nonmagnetic material
    6.
    发明授权
    Magnetorheological compositions including nonmagnetic material 有权
    磁流变成分包括非磁性材料

    公开(公告)号：US08361341B2

    公开(公告)日：2013-01-29

    申请号：US12576485

    申请日：2009-10-09

    Applicant: John C. Ulicny ,  Mark A. Golden ,  Keith S. Snavely ,  Prabhakar Marur

    Inventor： John C. Ulicny ,  Mark A. Golden ,  Keith S. Snavely ,  Prabhakar Marur

    IPC: H01F1/44

    CPC classification number: H01F1/442 ,  H01F1/447

    Abstract: A magnetorheological composition includes a mixture of a carrier medium and a particle component disposed in the carrier medium. The particle component includes a magnetic material and a nonmagnetic material. The nonmagnetic material is present in the particle component in an amount of from about 5 to about 95 parts by volume based on 100 parts by volume of the particle component. The particle component is present in the magnetorheological composition in an amount of from about 20 to about 80 parts by volume based on 100 parts by volume of the magnetorheological composition. The magnetorheological composition has an on-state yield stress at magnetic saturation of from about 0.1 to about 100 kPa.

    Abstract translation: 磁流变组合物包括载体介质和布置在载体介质中的颗粒组分的混合物。 颗粒组分包括磁性材料和非磁性材料。 基于100体积份的颗粒组分，非磁性材料以约5至约95体积份的量存在于颗粒组分中。 基于100体积份的磁流变组合物，颗粒组分以约20至约80体积份的量存在于磁流变组合物中。 磁流变组合物在磁饱和时具有约0.1至约100kPa的导通状态屈服应力。

    MAGNETORHEOLOGICAL FLUIDS AND METHODS OF MAKING AND USING THE SAME
    8.
    发明申请
    MAGNETORHEOLOGICAL FLUIDS AND METHODS OF MAKING AND USING THE SAME 审中-公开
    磁流体流体及其制造和使用方法

    公开(公告)号：US20110121223A1

    公开(公告)日：2011-05-26

    申请号：US12623913

    申请日：2009-11-23

    Applicant: John C. Ulicny ,  Paul E. Krajewski ,  Mark A. Golden ,  Keith S. Snavely

    Inventor： John C. Ulicny ,  Paul E. Krajewski ,  Mark A. Golden ,  Keith S. Snavely

    IPC: C09K3/00 ,  H01F1/26

    CPC classification number: H01F1/447 ,  F16F9/535

    Abstract: One embodiment includes a magnetorheological fluid having an on-state yield stress when a magnetic field is applied thereto and comprising a carrier fluid and magnetizable particles suspended in the carrier fluid, and wherein the suspension of the magnetizable particles in the carrier fluid remains essentially homogenous indefinitely in the absence of the magnetic field, and wherein the on-state yield stress of the magnetorheological fluid is greater than or equal to that of poly(alpha)olefin fluid containing the same concentration of magnetizable particles, and wherein the off-state viscosity of the magnetorheological fluid is between about 0.4 and about 12 Pascal-seconds at 40° C.

    Abstract translation: 一个实施例包括当向其施加磁场时具有导通状态屈服应力的磁流变流体，并且包括载体流体和悬浮在载体流体中的可磁化颗粒，并且其中载体流体中可磁化颗粒的悬浮液基本上保持不变 在不存在磁场的情况下，并且其中所述磁流变流体的导通状态屈服应力大于或等于含有相同浓度的可磁化颗粒的聚（α）烯烃流体的导通状态粘度，并且其中， 磁流变流体在40℃下介于约0.4至约12帕斯卡 - 秒之间

    Localized impact energy absorbers
    10.
    发明授权
    Localized impact energy absorbers 有权
    局部冲击能量吸收器

    公开(公告)号：US08485588B1

    公开(公告)日：2013-07-16

    申请号：US13469241

    申请日：2012-05-11

    Applicant: Mark A. Voss ,  Leonard J. Brohl, Jr. ,  Paul E. Krajewski ,  Louis G. Hector, Jr. ,  Keith S. Snavely ,  Matthew F. Pawlicki

    Inventor： Mark A. Voss ,  Leonard J. Brohl, Jr. ,  Paul E. Krajewski ,  Louis G. Hector, Jr. ,  Keith S. Snavely ,  Matthew F. Pawlicki

    IPC: B62D25/10

    CPC classification number: F16F1/025 ,  B60R21/34 ,  B60R2021/343 ,  B62D25/105

    Abstract: A vehicle hood or a panel covering an object includes an inner surface and an outer surface. The inner surface faces the object and is offset from the object by a basin depth. The outer surface is substantially opposite the inner surface. A local energy absorber is operatively attached to the inner surface or is disposed between the inner surface and the object. The local energy absorber has a singly-connected structure, which includes a first wall portion and a second wall portion. The first wall portion is operatively attached to the inner surface. The singly-connected structure also includes a curved connector portion joining the first wall portion and the second wall portion.

    Abstract translation: 车辆罩或覆盖物体的面板包括内表面和外表面。 内表面面对物体，并通过盆地深度偏离物体。 外表面基本上与内表面相对。 局部能量吸收器可操作地附接到内表面或者设置在内表面和物体之间。 本地能量吸收器具有单连接结构，其包括第一壁部分和第二壁部分。 第一壁部分可操作地附接到内表面。 单连接结构还包括连接第一壁部和第二壁部的弯曲连接部。

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