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    Magnetorheological fluid composition and a process for preparation thereof
    4.
    发明授权
    Magnetorheological fluid composition and a process for preparation thereof 失效
    磁流变液组合物及其制备方法

    公开(公告)号：US06875368B2

    公开(公告)日：2005-04-05

    申请号：US10433087

    申请日：2001-10-03

    申请人： Reji John ,  Narayana Das Janardhanan Pillai

    发明人： Reji John ,  Narayana Das Janardhanan Pillai

    IPC分类号： C10M169/04 ,  C10M101/04 ,  C10M125/04 ,  C10M125/10 ,  C10M125/12 ,  C10M125/22 ,  C10N10/02 ,  C10N10/04 ,  C10N10/14 ,  C10N10/16 ,  C10N30/04 ,  C10N40/14 ,  H01F1/44 ,  C04B35/00

    CPC分类号： H01F1/447

    摘要： The present invention relates to a magnetorheological fluid composition and a process for preparing the same, which has excellent magnetorheological properties. The fluid composition exhibits change in rheological characteristics in the presence of an external magnetic field. Further, the magnetorheological characteristics of the fluid composition can be optimised for the improved magnetic sensitivity to external magnetic field and negligible magnetic retentivity after removal of the external magnetic field. The sensitivity of the fluid to external magnetic field can be varied by varying the pure iron content of the magnetic sensitive particles composition while, the magnetic retentivity of the fluid (after removal of external magnetic field) can be varied by varying the ferrite alloy content of the same. The fluid composition utilises a magnetic sensitive particles stabiliser or surfactant, which is synthesised from the carrier fluid used in the fluid composition. The fluid composition, prepared according to this process, does not suffer from the rapid settling of the magnetic particles as it utilises a carrier fluid based surfactant, which improves the homogeneity of the fluid composition.

    摘要翻译： 本发明涉及磁流变液体组合物及其制备方法，具有优异的磁流变性能。 流体组合物在外部磁场的存在下表现出流变特性的变化。 此外，可以优化流体组合物的磁流变特性，以改善对外部磁场的磁敏感性以及去除外部磁场后的可忽略的磁保持性。 流体对外部磁场的敏感性可以通过改变磁敏颗粒组合物的纯铁含量来改变，而流体的磁保持性（除去外部磁场后）可以通过改变铁氧体合金含量 一样。 流体组合物使用从用于流体组合物的载体流体合成的磁敏颗粒稳定剂或表面活性剂。 根据该方法制备的流体组合物在使用基于载体流体的表面活性剂时不会受到磁性颗粒的快速沉降的困扰，这提高了流体组合物的均匀性。

    Center bearing assembly including support member containing rheological fluid
    5.
    再颁专利
    Center bearing assembly including support member containing rheological fluid 失效
    中心轴承组件包括含有流变液的支撑构件

    公开(公告)号：USRE36270E

    公开(公告)日：1999-08-17

    申请号：US847463

    申请日：1997-04-24

    申请人： James A Duggan

    发明人： James A Duggan

    IPC分类号： B60K17/24 ,  C10M107/50 ,  C10M125/10 ,  C10M171/00 ,  C10N40/14 ,  F16C27/00 ,  F16C27/04 ,  F16C27/06 ,  F16F9/53

    CPC分类号： B60K17/24 ,  F16C27/00 ,  F16C27/04 ,  F16C27/066 ,  F16C35/047 ,  F16F9/53 ,  F16C19/06 ,  Y10T74/2122

    摘要： A center bearing assembly includes a roller bearing adapted to receive and rotatably support a coupling shaft and a bracket adapted to be secured to a vehicle frame. A support member is provided which supports the roller bearing within the bracket. The support member includes a bladder formed of an elastomeric material. The bladder contains a rheological fluid which exhibits a significant change in its ability to flow or shear upon the application of an appropriate energy field. Preferably, the bladder contains a magneto-rheological magnetic fluid. By varying the power supplied to an electromagnetic located adjacent the bladder, the vibration dampening characteristics of the support member may be varied depending upon the operating conditions of the vehicle.

    摘要翻译： 中心轴承组件包括适于容纳和可旋转地支撑联轴器的滚子轴承和适于固定到车架上的支架。 提供支撑构件，其支撑在支架内的滚子轴承。 支撑构件包括由弹性体材料形成的囊。 膀胱包含流变液，其在施加适当能量场时表现出其流动或剪切能力的显着变化。 优选地，气囊包含磁流变磁性流体。 通过改变供应给位于气囊附近的电磁的功率，支撑构件的减振特性可以根据车辆的操作条件而变化。

    Electrorheological elastomeric composite materials
    8.
    发明授权
    Electrorheological elastomeric composite materials 失效
    电流变弹性复合材料

    公开(公告)号：US5505871A

    公开(公告)日：1996-04-09

    申请号：US157664

    申请日：1993-11-23

    申请人： C. Ross Harder ,  Paul W. Trester

    发明人： C. Ross Harder ,  Paul W. Trester

    IPC分类号： C10M169/04 ,  C10M171/00 ,  C10N20/02 ,  C10N20/06 ,  C10N40/14 ,  C08K5/54 ,  C08J5/24 ,  C08L83/00 ,  C09K3/00

    CPC分类号： C10M171/001

    摘要： An electrorheological(ER) composite material with solid, elastomeric characteristics in the form of an elastomer matrix encompassing an ER fluid. This ER composite material changes certain of its physical properties in response to an imposed electric field (as do known ER fluids), but it has the advantage of maintaining a defined spatial volume without the need of sophisticated seals. It also provides desirable design features inherent in an elastic solid having the specific capability of being molded in conjunction with a containment surface to which it strongly adhesively bonds. Certain physical properties of these ER composite materials and their physical response to the application of an electric field may be varied by varying the properties and/or the proportions of the ER fluid component and the resin prepolymer component which are employed in formulating the composite.

    摘要翻译： 具有固体，弹性体特性的电流变（ER）复合材料，其为包含ER流体的弹性体基体形式。 这种ER复合材料响应于施加的电场（如已知的ER流体）而改变其某些物理性质，但其具有维持定义的空间体积而不需要复杂的密封的优点。 它还提供弹性固体中固有的期望的设计特征，其具有与其强力粘合的容纳表面一起模制的特定能力。 这些ER复合材料的某些物理性质及其对施加电场的物理响应可以通过改变在配制复合材料中使用的ER流体组分和树脂预聚物组分的性质和/或比例而变化。