公开(公告)号：EP1811529A1

公开(公告)日：2007-07-25

申请号：EP07075052.6

申请日：2007-01-18

Applicant: Delphi Technologies, Inc.

Inventor： Foister, Robert T. ,  Iyengar, Vardarajan R. ,  Yurgelevic, Sally M.

IPC: H01F1/44

CPC classification number: H01F1/447

Abstract: An additives package for use in an MR fluid formulation is provided, as well as an MR fluid formulation containing the additives package. In one embodiment, the additives package comprises an organomolybdenum dithiocarbamate, an ashless dithiocarbamate, and a triazole compound, such as a tolutriazole compound. In another embodiment, the additives package may further include an aminic antioxidant, such as an alkylated diphenylamine. In another embodiment, the additives package is free of an organomolybdate ester. In another embodiment, the additives package consists of the organomolybdenum dithiocarbamate, the ashless dithiocarbamate, the triazole compound, and optionally the aminic antioxidant. In addition to the additives package, the magnetorheological fluid formulation comprises magnetizable particles, a carrier fluid, and a thickening agent.

Abstract translation: 提供了用于MR流体配方的添加剂包，以及含有添加剂包的MR流体配方。 在一个实施方案中，添加剂包含有二硫代氨基甲酸有机钼，无灰二硫代氨基甲酸盐和三唑化合物如甲苯三唑化合物。 在另一个实施方案中，添加剂包可以进一步包括胺类抗氧化剂，例如烷基化二苯胺。 在另一个实施方案中，添加剂包装不含有机钼酸酯。 在另一个实施方案中，添加剂包由有机钼二硫代氨基甲酸盐，无灰二硫代氨基甲酸盐，三唑化合物和任选的氨基抗氧化剂组成。 除了添加剂包装之外，磁流变流体配方包括可磁化颗粒，载体流体和增稠剂。

公开(公告)号：EP1724493A3

公开(公告)日：2008-05-14

申请号：EP06075967.7

申请日：2006-04-28

Applicant: Delphi Technologies, Inc.

Inventor： Kruckemeyer, William C. ,  Han, Taeyoung ,  Nehl, Thomas W. ,  Foister, Robert T.

IPC: F16F9/53

CPC classification number: F16F9/535

Abstract: A magnetorheological (MR) piston assembly (110) includes an MR piston (112), a rod (114), and a guide member (116). The guide member includes an MR fluid passageway (124) and is attached to at least one of the piston and rod. A perimeter of a projection of the guide member onto a plane perpendicular to the longitudinal axis surrounds and is spaced apart from a perimeter of a projection of the MR piston onto the plane A damper 138 includes an MR piston assembly (110) and a tube (140). The piston assembly includes a piston (112), a rod (114), and a guide member (116). The guide member includes an MR fluid passageway (124) and is attached to at least one of the piston and rod. The guide member diameter is greater than the piston diameter. The tube surrounds and is radially spaced apart from the piston and surrounds the guide member, wherein the guide member makes sliding contact with the tube.

公开(公告)号：EP2085640A1

公开(公告)日：2009-08-05

申请号：EP09151101.4

申请日：2009-01-22

Applicant: Delphi Technologies, Inc.

Inventor： Nehl, Thomas W. ,  Alexandridis, Alexander A. ,  Foister, Robert T. ,  Kruckemeyer, William C. ,  Deng, Fang

IPC: F16F9/53

CPC classification number: F16F9/535 ,  F16D37/02

Abstract: A magnetorheological (MR) fluid-based device including an MR piston assembly. The MR piston assembly includes a ferromagnetic MR piston core and an electric coil. The MR piston core has a central longitudinal axis and has an outer circumferential surface substantially coaxially aligned with the central longitudinal axis. The electric coil is positioned in the MR piston core and is substantially coaxially aligned with the central longitudinal axis. A portion, or at least a portion, of the electric coil is buried in the MR piston core under the outer circumferential surface.

Abstract translation: 的磁流变（MR）流体基装置，包括在MR活塞组件。 的MR活塞组件包括一个铁磁MR活塞芯和上电线圈。 该MR活塞芯具有中央纵向轴线，并且具有外表面的周向大致同轴地与中心纵向轴线对准。 电线圈在MR活塞芯定位并同轴地与中央基本纵向轴线对准。 电线圈的一部分，或者至少一部分，被埋入的外周面下的MR活塞芯。

公开(公告)号：EP1811529B1

公开(公告)日：2010-06-02

申请号：EP07075052.6

申请日：2007-01-18

Applicant: Delphi Technologies, Inc.

Inventor： Foister, Robert T. ,  Iyengar, Vardarajan R. ,  Yurgelevic, Sally M.

IPC: H01F1/44

CPC classification number: H01F1/447

公开(公告)号：EP1724493A2

公开(公告)日：2006-11-22

申请号：EP06075967.7

申请日：2006-04-28

Applicant: Delphi Technologies, Inc.

Inventor： Kruckemeyer, William C. ,  Han, Taeyoung ,  Nehl, Thomas W. ,  Foister, Robert T.

IPC: F16F9/53

CPC classification number: F16F9/535

Abstract: A magnetorheological (MR) piston assembly (110) includes an MR piston (112), a rod (114), and a guide member (116). The guide member includes an MR fluid passageway (124) and is attached to at least one of the piston and rod. A perimeter of a projection of the guide member onto a plane perpendicular to the longitudinal axis surrounds and is spaced apart from a perimeter of a projection of the MR piston onto the plane A damper 138 includes an MR piston assembly (110) and a tube (140). The piston assembly includes a piston (112), a rod (114), and a guide member (116). The guide member includes an MR fluid passageway (124) and is attached to at least one of the piston and rod. The guide member diameter is greater than the piston diameter. The tube surrounds and is radially spaced apart from the piston and surrounds the guide member, wherein the guide member makes sliding contact with the tube.

Abstract translation: 磁流变（MR）活塞组件（110）包括MR活塞（112），杆（114）和引导构件（116）。 引导构件包括MR流体通道（124）并且附接到活塞和杆中的至少一个。 引导构件在与纵向轴线垂直的平面上的突起的周边包围并与MR活塞的平面A的突起的周边间隔开。阻尼器138包括MR活塞组件（110）和管（ 140）。 活塞组件包括活塞（112），杆（114）和引导构件（116）。 引导构件包括MR流体通道（124）并且附接到活塞和杆中的至少一个。 导向件直径大于活塞直径。 管围绕并且与活塞径向间隔开并且围绕引导构件，其中引导构件与管滑动接触。

公开(公告)号：EP2015319A1

公开(公告)日：2009-01-14

申请号：EP08158339.5

申请日：2008-06-16

Applicant: Delphi Technologies, Inc.

Inventor： Iyengar, Vardarajan R. ,  Yurgelevic, Sally M. ,  Foister, Robert T.

IPC: H01F1/44

CPC classification number: H01F1/447

Abstract: A magnetorheological fluid formulation comprising magnetizable particles dispersed in carrier fluid and a thixotropic agent wherein the thixotropic agent comprises a fluorocarbon grease.

Abstract translation: 包含分散在载体流体中的可磁化颗粒和触变剂的磁流变流体配制剂，其中触变剂包括氟碳润滑脂。

公开(公告)号：EP1318528B1

公开(公告)日：2007-06-06

申请号：EP02079829.4

申请日：2002-11-20

Applicant: Delphi Technologies, Inc.

Inventor： Foister, Robert T. ,  Iyengar, Vardarajan R. ,  Yurgelevic, Sally M.

IPC: H01F1/44

CPC classification number: H01F1/447

公开(公告)号：EP1318528A3

公开(公告)日：2003-10-29

申请号：EP02079829.4

申请日：2002-11-20

Applicant: Delphi Technologies, Inc.

Inventor： Foister, Robert T. ,  Iyengar, Vardarajan R. ,  Yurgelevic, Sally M.

IPC: H01F1/44

CPC classification number: H01F1/447

Abstract: A magnetorheological fluid formulation comprising magnetizable particles dispersed in a multi-component liquid vehicle comprising an organoclay stabilization mixture. At least one organoclay is selected for each liquid vehicle component, each organoclay having a surface chemistry that renders it preferentially compatible with the surface functionality of one of the liquid components relative to its compatibility to the remaining components whereby it is effective to stabilize, or gel, that component. A method of making an MR fluid is also provided in which liquid vehicle components are blended together, the organoclay mixture is added to the blend, and magnetizable particles are suspended therein, resulting in a stable MR fluid of suitable viscosity and yield stress.

公开(公告)号：EP1318528A2

公开(公告)日：2003-06-11

申请号：EP02079829.4

申请日：2002-11-20

Applicant: Delphi Technologies, Inc.

Inventor： Foister, Robert T. ,  Iyengar, Vardarajan R. ,  Yurgelevic, Sally M.

IPC: H01F1/44

CPC classification number: H01F1/447

Abstract: A magnetorheological fluid formulation comprising magnetizable particles dispersed in a multi-component liquid vehicle comprising an organoclay stabilization mixture. At least one organoclay is selected for each liquid vehicle component, each organoclay having a surface chemistry that renders it preferentially compatible with the surface functionality of one of the liquid components relative to its compatibility to the remaining components whereby it is effective to stabilize, or gel, that component. A method of making an MR fluid is also provided in which liquid vehicle components are blended together, the organoclay mixture is added to the blend, and magnetizable particles are suspended therein, resulting in a stable MR fluid of suitable viscosity and yield stress.

Abstract translation: 的磁流变流体制剂，其包含分散在多组分液体媒介物在有机粘土稳定混合物，其包含可磁化颗粒。 至少一种有机粘土被选择用于每一个液体载剂组分，每种有机粘土具有表面化学做使得它与相对于液体组分的相容性，以剩余的组分，由此它是有效地稳定，或凝胶中的一个的表面的功能优先兼容 ，做组件。 因此，其中液体载体组分提供一种制造MR流体的方法混合在一起，有机粘土混合物加入到该共混物，和磁化颗粒悬浮于其中，以合适的粘度的稳定的MR流体所得和屈服应力。