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公开(公告)号：US06318519B1
公开(公告)日：2001-11-20
申请号：US09654607
申请日：2000-09-01
申请人： William Charles Kruckemeyer , Eric Lee Jensen , Richard Edward Longhouse , Patrick Neil Hopkins , John David Fehring , Ilya Lisenker , James A. Morgan
发明人： William Charles Kruckemeyer , Eric Lee Jensen , Richard Edward Longhouse , Patrick Neil Hopkins , John David Fehring , Ilya Lisenker , James A. Morgan
IPC分类号： F16F953
CPC分类号： F16F9/535 , B60G2204/112 , F16F9/3214 , F16F9/3405
摘要： An improved magnetorheological fluid damper is provided which effectively provides a smooth transition, without a sharp break in the damper force/velocity curve, between very low damping forces near zero damper velocity to higher damping forces at higher piston velocities while maintaining desirable maximum force levels. The damper includes a piston assembly, including a magnet assembly and a flow gap extending through the piston assembly to permit fluid flow between the chambers. The force/velocity optimization feature includes a groove or passage open to the flow gap, positioned in series with a part of the flow gap in a magnetic circuit generated by the magnet assembly and dimnensioned/sized to permit fluid flowing through the passage to experience a magnetorheological effect less than a magnetorheological effect experienced by fluid flowing through the flow gap but not through the groove. Preferably, the passage is formed in an inner annular surface of a flux ring positioned around a piston core. The passage may be formed, for example, by a curvilinear surface, a modified rectangular surface or a triangular surface.
摘要翻译： 提供了一种改进的磁流变流体阻尼器，其有效地提供了在阻尼器力/速度曲线下的非常低的阻尼力与零阻尼器速度的非常低的阻尼力之间的平滑过渡，而在更高的活塞速度下具有较高的阻尼力，同时保持期望的最大力水平。 阻尼器包括活塞组件，其包括磁体组件和延伸穿过活塞组件的流动间隙，以允许流体在腔室之间流动。 力/速度优化特征包括通向流动间隙的凹槽或通道，与由磁体组件产生的磁路中的一部分流动间隙串联定位，并且被延伸/尺寸设定为允许流体流过通道以体验 磁流变效应小于流体流过流动间隙但不通过凹槽的磁流变效应。 优选地，通道形成在位于活塞芯周围的磁通环的内环形表面中。 通道可以例如由曲线表面，改进的矩形表面或三角形表面形成。
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公开(公告)号：US06311810B1
公开(公告)日：2001-11-06
申请号：US09422453
申请日：1999-10-21
申请人： Patrick Neil Hopkins , John David Fehring , Ilya Lisenker , Richard Edward Longhouse , William Charles Kruckemeyer , Michael Leslie Oliver , Frank M. Robinson , Alexander Apostolos Alexandridis
发明人： Patrick Neil Hopkins , John David Fehring , Ilya Lisenker , Richard Edward Longhouse , William Charles Kruckemeyer , Michael Leslie Oliver , Frank M. Robinson , Alexander Apostolos Alexandridis
IPC分类号： F16F953
CPC分类号： F16F9/535
摘要： A novel and improved magnetorheological fluid damper is provided which effectively secures a flux ring to a piston core in a manner which prevents relative axial and radial movement between the flux ring and the core throughout operation while minimizing the size of the piston assembly yet providing effective damping. Several connector devices are disclosed for both axially and radially securing the flux ring relative to the piston core at one end of the piston assembly in a simple manner without increasing the length of the piston assembly. The connector device may include an outer portion brazed to the flux ring, an inner portion connected to the piston core, bridge portions extending between the outer and inner portions, flow passages formed between the bridge portions and an inlet cavity formed adjacent an annular flow gap to permit unimpeded, enhanced laminar flow through the flow gap by improving the damping effect. Other connector devices may include elongated rivets extending through the flow gap axially along the piston assembly, and elongated pin and spacer tube connectors extending radially between the piston core and the flux ring. Various embodiments of radial support devices are disclosed for possible use in combination with the connector devices to enhance radial support by, for example, the use of balls, a washer with tabs, a coil bobbin with tabs, rivets and axially extending elongated pins.
摘要翻译： 提供了一种新颖且改进的磁流变流体阻尼器，其有效地将磁通环固定到活塞芯上，以防止在操作过程中磁通环和磁芯之间的相对轴向和径向移动，同时最小化活塞组件的尺寸，同时提供有效的阻尼 。 公开了几个连接器装置，用于在活塞组件的一端以简单的方式轴向地和径向地固定磁通环相对于活塞芯，而不增加活塞组件的长度。 连接器装置可以包括钎焊到磁通环的外部部分，连接到活塞芯的内部部分，在外部部分和内部部分之间延伸的桥接部分，形成在桥接部分之间的流动通道和邻近环形流动间隙形成的入口腔 通过改善阻尼效应来允许通过流动间隙的无阻碍的增强的层流。 其它连接器装置可以包括沿着活塞组件轴向延伸穿过流动间隙的细长铆钉，以及在活塞芯和磁通环之间径向延伸的细长销和间隔管连接器。 公开了径向支撑装置的各种实施例，用于与连接器装置结合使用，以通过例如球的使用来增强径向支撑，具有突出部的垫圈，带有突出部，铆钉和轴向延伸的细长销的线圈架。
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公开(公告)号：US06357734B1
公开(公告)日：2002-03-19
申请号：US09484199
申请日：2000-01-18
IPC分类号： F16F932
CPC分类号： B60G17/021 , B60G15/063 , B60G15/067 , F16F9/103 , F16F9/3207 , F16F13/00
摘要： A monotube damper and suspension spring assembly for a motor vehicle includes a tubular housing defining a chamber filled with damping fluid. A piston and piston rod reciprocate within the chamber. In order to compensate for volumetric changes of the chamber due to extension and retraction of the piston rod within the chamber, either the upper seal cover or lower bottom ring assembly is slidable within the housing. A preload is applied either to the housing or to the seal cover to thereby bias these elements to compensate for volumetric changes in the chamber.
摘要翻译： 用于机动车辆的单管阻尼器和悬架弹簧组件包括限定填充有阻尼流体的腔室的管状壳体。 活塞和活塞杆在腔室内往复运动。 为了补偿由于活塞杆在腔室内的伸缩而引起的室的体积变化，上密封盖或下底环组件可在壳体内滑动。 将预载荷施加到壳体或密封盖，从而偏置这些元件以补偿腔室中的体积变化。
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公开(公告)号：US06516926B2
公开(公告)日：2003-02-11
申请号：US09810350
申请日：2001-03-16
IPC分类号： F16F953
CPC分类号： B24B21/004 , F16F9/3221 , F16F9/535 , F16F2226/02 , F16F2230/02
摘要： A piston rod for use in a magnetorheological dampening device having a surface finish that renders the device resistant to wear at the elastomeric seal/piston rod interface. The piston rod has a surface finish of Ra
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公开(公告)号：US06464051B2
公开(公告)日：2002-10-15
申请号：US09810323
申请日：2001-03-16
IPC分类号： F16F953
CPC分类号： F16F9/535 , F16F2226/02
摘要： A damper body for a magnetorheological (MR) damper and associated methods of forming the damper body. The damper body is formed of a base material, such as a steel, and is coated with an abrasion-resistant layer comprising chromium. The layer of chromium provides a sliding wear surface for sliding contact with a reciprocating piston. To avoid high-stress abrasive wear over the expected service life of the magnetorheological damper, the layer of chromium has a minimum thickness greater than or equal to a minimum thickness of about 8 &mgr;m. In other embodiments, before applying the abrasion-resistant layer of chromium, the damper body is coated with a layer of a hard coating material having a hardness greater than the hardness of the base material. The effective hardness of the damper body is a composite of the respective hardnesses of the base material comprising the damper body and the layer of hard coating material. The thickness of abrasion-resistant layer of chromium is chosen in direct relation to the effective hardness.
摘要翻译： 一种用于磁流变（MR）阻尼器的阻尼器本体和形成阻尼体的相关方法。 阻尼体由诸如钢的基材形成，并且涂覆有包含铬的耐磨层。 铬层提供滑动磨损表面，用于与往复活塞滑动接触。 为了避免在磁流变阻尼器的预期使用寿命之前的高应力磨损磨损，铬层具有大于或等于约8μm的最小厚度的最小厚度。 在其他实施例中，在施加铬的耐磨层之前，阻尼体涂覆有硬度大于基材硬度的硬涂层材料层。 阻尼体的有效硬度是包括阻尼体的基材和硬质涂层材料的硬度的复合。 铬的耐磨层的厚度与有效硬度直接相关。
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公开(公告)号：US06263779B1
公开(公告)日：2001-07-24
申请号：US09412266
申请日：1999-10-05
IPC分类号： F01B2900
CPC分类号： F16F9/3242 , F15B15/1438
摘要： A snap ring closure system is particularly useful in securing a rod guide in an end of a tube of a hydraulic damper. The snap ring closure system utilizes an end cap or rod guide having a double-lobed groove and a peripheral flange about its outer end. The double-lobed groove includes an outer lobe and an inner lobe of a lesser depth than the outer lobe. A groove is formed on the tube and is positioned to design with the doubled-lobed groove when the end cap is inserted in the tube. The end cap includes a first snap ring in the outer lobe which expands outwardly into the tube groove when the cap is first inserted. The cap is secured by engagement of the first snap ring with the inner more shallow lobe. A second snap ring is placed between the flange and the end of the tube to remove any play between the end cap and tube.
摘要翻译： 卡环闭合系统特别可用于将杆导向器固定在液压阻尼器的管的端部中。 卡环闭合系统利用端盖或杆导向件，其具有围绕其外端的双凸起的凹槽和周边凸缘。 双凸起的凹槽包括一个外凸角和一个比外凸的深度较小的内凸耳。 在管上形成凹槽，当端盖插入管中时，凹槽被设置成带有双凸起的凹槽。 端盖包括外凸耳中的第一卡环，当首先插入盖时，该第一卡扣环向外扩展到管槽中。 帽通过第一卡环与内更浅的凸角的接合来固定。 第二个卡环位于法兰和管的端部之间，以消除端盖和管之间的任何间隙。
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公开(公告)号：US06296090B1
公开(公告)日：2001-10-02
申请号：US09494996
申请日：2000-01-31
IPC分类号： F16F928
CPC分类号： B60G13/005 , B60G2204/1226 , F16F9/28 , F16F2232/02
摘要： A rotary damper for use in an automotive vehicle. The rotary damper includes an outer casing having a main chamber and a pair of piston orifices, the main chamber and the piston orifices being filled with a damping fluid, a pivotable cam located in the main chamber and attached to an arm for transferring the rotary movement of the arm to the cam. The damper also includes a pair of pistons, each located in its own orifice, and connected to opposite sides of the cam. When the ami transfers the rotary movement to the cam, each piston is moved in opposite directions in its respective piston orifice to damp the rotary movement of the arm.
摘要翻译： 一种用于机动车辆的旋转阻尼器。 旋转阻尼器包括具有主室和一对活塞孔的外壳，主室和活塞孔填充有阻尼流体，位于主室中的可枢转凸轮并且附接到臂以传递旋转运动 的手臂到凸轮。 阻尼器还包括一对活塞，每个活塞位于其自身的孔中，并连接到凸轮的相对侧。 当将旋转运动转移到凸轮时，每个活塞在其相应的活塞孔中以相反的方向移动，以阻止臂的旋转移动。
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公开(公告)号：US06547044B2
公开(公告)日：2003-04-15
申请号：US09805852
申请日：2001-03-14
IPC分类号： F16F953
CPC分类号： B60G13/008 , B60G15/07 , F16F9/535
摘要： A magneto-rheological (“MR”) damper having a damper body tube containing an MR fluid. A piston assembly is disposed in the damper body tube and forms an annular flow gap between the piston assembly and the damper body tube. The piston assembly has a piston core containing ferrous material and an electromagnetic coil mounted on the piston core for generating a magnetic field. The damper further includes a ferromagnetic member positioned outside of the damper body tube substantially adjacent the piston assembly for providing at least a part of a magnetic flux return path for the magnetic field.
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公开(公告)号：US06279700B1
公开(公告)日：2001-08-28
申请号：US09395070
申请日：1999-09-13
IPC分类号： F16F906
CPC分类号： F16F9/535
摘要： A magnetorheological fluid damper is provided which permits effective control of damping while minimizing assembly size and costs by including a thin-walled insert in a flow gap formed between a flux ring and a piston body. The insert may include a thin-walled tubular insert having a generally smooth cylindrical shape for increasing the shear surface area. Alternatively, a corrugated insert may be provided having corrugations formed by edges extending axially along the insert. The corrugations may be formed in a variety of locations, sizes, shapes and spacings along the axial extent of the insert and the circumference of the insert. The corrugations advantageously effectively align the insert within the flow gap and also function to securely connect the flux ring to the piston body without the use of other devices such as plates thereby reducing the size and cost of the assembly.
摘要翻译： 提供了一种磁流变流体阻尼器，其允许有效地控制阻尼，同时通过在形成在磁通环和活塞体之间的流动间隙中包括薄壁插入件来最小化组件尺寸和成本。 插入件可以包括具有大致平滑的圆柱形形状的薄壁管状插入件，用于增加剪切表面积。 或者，可以提供波纹插入件，其具有由沿着插入件轴向延伸的边缘形成的波纹。 波纹可以沿插入件的轴向范围和插入件的圆周形成各种位置，尺寸，形状和间距。 波纹有利地有效地将插入件对准流动间隙内并且还用于将焊剂环牢固地连接到活塞主体而不使用诸如板的其它装置，从而减小了组件的尺寸和成本。
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公开(公告)号：US06454059B1
公开(公告)日：2002-09-24
申请号：US09826020
申请日：2001-04-04
申请人： Sohrab Sadri Lonbani , John H. Muhlenkamp , Patrick N. Hopkins , Ilya Lisenker , Venkatasubramanian Ananthanarayanan
发明人： Sohrab Sadri Lonbani , John H. Muhlenkamp , Patrick N. Hopkins , Ilya Lisenker , Venkatasubramanian Ananthanarayanan
IPC分类号： F16F953
CPC分类号： F16F9/535 , Y10S137/909
摘要： A magneto-rheological damping device comprises a core element for carrying a magnetic flux and a magnetic flux generator positioned adjacent to a portion of the core element and operable to generate a magnetic flux in the core element. A sleeve is positioned over the core element and magnetic flux generator and includes a plurality of protrusions extending generally radially outwardly from a center of the core element. A flux ring surrounds the core element and sleeve and defining a passage between flux ring and core element for the flow of a magneto-rheological fluid. The sleeve protrusions are configured to engage the flux ring and secure the flux ring in a concentric position around the core element and sleeve.
摘要翻译： 磁流变阻尼装置包括用于承载磁通的芯元件和邻近核心元件的一部分定位的磁通发生器，并可操作以在芯元件中产生磁通量。 套筒位于芯元件和磁通量发生器之上，并且包括从芯元件的中心大致径向向外延伸的多个突起。 磁通环围绕芯元件和套筒并且在磁流环和磁芯元件之间限定用于磁流变流体流动的通道。 套筒凸起构造成与磁通环接合并将磁通环固定在围绕芯元件和套筒的同心位置。
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