公开(公告)号：US20020130002A1

公开(公告)日：2002-09-19

申请号：US09809455

申请日：2001-03-15

Applicant: Delphi Technologies, Inc.

Inventor： Patrick Neil Hopkins ,  Frank M. Robinson ,  Michael W. Hurtt ,  William Charles Kruckemeyer ,  Michael L. Oliver

IPC: F16F009/53 ,  F16F009/36

CPC classification number: F16F9/36 ,  F16F9/067 ,  F16F9/535

Abstract: A magneto-rheological (nullMRnull) damper having a gas cup that slidably moves within a damper body tube and isolates an MR fluid from a gas in one end of the damper body tube. The gas cup has a dynamic seal that comprises an MR fluid compatible O-ring located in a narrow O-ring groove disposed in an outer surface of the gas cup. The narrow O-ring groove is sized to reduce entrapment of abrasive magnetic particles in the MR fluid between the O-ring and an inner surface of the damper body tube. The O-ring groove has a free roll room of about less than 12%.

Abstract translation: 磁流变学（“MR”）阻尼器具有可在阻尼体内管内滑动运动的气杯，并将MR流体与阻尼体管一端的气体隔离。 气杯具有动态密封，其包括位于气杯的外表面中的窄O形环槽中的与MR流体相容的O形环。 狭窄的O形环槽的尺寸被设计成减小在O形环和阻尼器体管的内表面之间的MR流体中的研磨磁性颗粒的夹带。 O形圈凹槽具有大约小于12％的自由滚动室。

公开(公告)号：US20020130000A1

公开(公告)日：2002-09-19

申请号：US09805852

申请日：2001-03-14

Applicant: Delphi Technologies, Inc.

Inventor： Ilya Lisenker ,  Patrick Neil Hopkins

IPC: F16F009/53

CPC classification number: B60G13/008 ,  B60G15/07 ,  F16F9/535

Abstract: A magneto-rheological (nullMRnull) 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.

Abstract translation: 具有包含MR流体的阻尼体管的磁流变学（“MR”）阻尼器。 活塞组件设置在阻尼器主体管中并在活塞组件和阻尼器体管之间形成环形的流动间隙。 活塞组件具有包含铁质材料的活塞芯和安装在活塞芯上的用于产生磁场的电磁线圈。 阻尼器还包括位于阻尼器体管外侧的铁磁构件，其基本上邻近活塞组件，用于为磁场提供至少一部分磁通返回路径。

公开(公告)号：US20030085201A1

公开(公告)日：2003-05-08

申请号：US10325191

申请日：2002-12-20

Applicant: DELPHI TECHNOLOGIES, INC.

Inventor： Venkatasubramanian Ananthanarayanan ,  Michael Henry Froning ,  Sohrab Sadri Lonbani ,  Janusz Pawel Goldasz ,  Michael Everett Hornback ,  Patrick Neil Hopkins ,  William Charles Kruckemeyer

IPC: H05B006/00

CPC classification number: B23K11/002 ,  B23K11/3081 ,  B23K26/037 ,  B23P15/10 ,  B23P2700/14 ,  F16F9/3214 ,  F16F9/535

Abstract: The piston for a magneto-rheological fluid system is manufactured from a piston skirt of a material having a high magnetic permeability and a piston plate which closes one end of the piston skirt having a low magnetic permeability and therefore must be made out of a material such as stainless steel. The piston is manufactured by placing the plate on one electrode and clamping another set of electrodes against the outer circumferential surface of the piston ring or skirt. The plate and ring are brought into contact with one another while applying a current through the piston ring and the piston plate, thereby heating interfering portions of the ring and plate and permitting the plate to be forced inside of the ring while at the same time allowing the softened or plastic portions of the ring and plate to intermingle with one another and thus form a solid state bond.

公开(公告)号：US20020162713A1

公开(公告)日：2002-11-07

申请号：US09810350

申请日：2001-03-16

Applicant: Delphi Technologies Inc.

Inventor： Ilya Lisenker ,  Patrick Neil Hopkins ,  William Charles Kruckemeyer

IPC: F16F009/53

CPC classification number: B24B21/004 ,  F16F9/3221 ,  F16F9/535 ,  F16F2226/02 ,  F16F2230/02

Abstract: 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

Abstract translation: 一种用于磁流变阻尼装置的活塞杆，其具有使装置在弹性密封件/活塞杆接口处耐磨损的表面光洁度。 活塞杆的表面光洁度为Ra <0.065μm，DELTAa <= 1.4°，使用截止长度为0.08mm的高斯滤光片测量。 还提供了一种实现表面光洁度的方法，包括在将研磨带移动到杆的外表面的同时旋转活塞杆。

公开(公告)号：US20020130003A1

公开(公告)日：2002-09-19

申请号：US09810323

申请日：2001-03-16

Applicant: Delphi Technologies, Inc.

Inventor： IIya Lisenker ,  Patrick Neil Hopkins ,  William Charles Kruckemeyer

IPC: F16F009/53

CPC classification number: F16F9/535 ,  F16F2226/02

Abstract: 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 nullm. In other embodiments, be fore 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.

Abstract translation: 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。