公开(公告)号：US20060260891A1

公开(公告)日：2006-11-23

申请号：US11407673

申请日：2006-04-20

申请人： William Kruckemeyer ,  Taeyoung Han ,  Thomas Nehl ,  Robert Foister

发明人： William Kruckemeyer ,  Taeyoung Han ,  Thomas Nehl ,  Robert Foister

IPC分类号： F16F15/03

CPC分类号： F16F9/535

摘要： A magnetorheological (MR) piston assembly includes an MR piston, a rod, and a guide member. The guide member includes an MR fluid passageway 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 includes an MR piston assembly and a tube. The piston assembly includes a piston, a rod, and a guide member. The guide member includes an MR fluid passageway 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.

摘要翻译： 磁流变（MR）活塞组件包括MR活塞，杆和引导构件。 引导构件包括MR流体通道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出部的周边包围并与MR活塞的平面A的突起的周边间隔开。阻尼器包括MR活塞组件和管。 活塞组件包括活塞，杆和引导构件。 引导构件包括MR流体通道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：US20050064191A1

公开(公告)日：2005-03-24

申请号：US10976405

申请日：2004-10-29

申请人： Vardarajan Iyengar ,  Robert Foister

发明人： Vardarajan Iyengar ,  Robert Foister

IPC分类号： H01F1/44

CPC分类号： H01F1/447 ,  Y10T428/2991

摘要： Hydrophobic metal particles that are useful as the magnetizable particles in magnetorheological fluids and magnetorheological elastomers are provided. Hydrophilic metal particles, such as carbonyl iron particles, are made hydrophobic by reacting a surface hydroxyl on the solid metal particle with a reactive surfactant. Particles are coated with the reactive surfactant to cover at least about 90% of the surface of the particles and then washed with a low viscosity synthetic hydrocarbon to remove any excess surfactant. The particles are stabilized against oxidation and irreversible coagulation during further processing, and formulation and use in magnetorheological fluids and elastomers.

摘要翻译： 提供了可用作磁流变流体和磁流变弹性体中的可磁化颗粒的疏水性金属颗粒。 通过使固体金属颗粒上的表面羟基与反应性表面活性剂反应，将亲水性金属颗粒（例如羰基铁颗粒）制成疏水性。 用反应性表面活性剂涂覆颗粒以覆盖至少约90％的颗粒表面，然后用低粘度合成烃洗涤以除去任何多余的表面活性剂。 颗粒在进一步加工过程中稳定，防止氧化和不可逆凝结，并在磁流变液和弹性体中配制和使用。