公开(公告)号：US20040134728A1

公开(公告)日：2004-07-15

申请号：US10339504

申请日：2003-01-09

Applicant: DELPHI TECHNOLOGIES INC.

Inventor： Ilya Lisenker ,  Randall L. Hofmann ,  Michael W. Hurtt

IPC: F16F009/53 ,  F16F015/03

CPC classification number: F16F9/342 ,  F16F9/535

Abstract: The invention provides a magnetorheological piston and damper assembly. The piston includes a piston body including at least one bypass port and an annular gap formed therein. The bypass port is in fluid communication with the annular gap. The bypass port includes a longitudinal portion extending substantially parallel to a piston longitudinal axis, and a bend portion extending substantially away from the longitudinal axis. The annular gap is spaced apart from the longitudinal portion and extends substantially parallel to the piston longitudinal axis. During operation, fluid flows through the bypass port and annular gap. The damper assembly includes a rod and a housing including the fluid carried therein. The piston is slidably carried in the housing and operably attached to the rod.

Abstract translation: 本发明提供一种磁流变活塞和阻尼器组件。 活塞包括活塞体，其包括形成在其中的至少一个旁通口和环形间隙。 旁通口与环形间隙流体连通。 旁通端口包括基本上平行于活塞纵向轴线延伸的纵向部分和基本上远离纵向轴线延伸的弯曲部分。 环形间隙与纵向部分间隔开并且基本上平行于活塞纵向轴线延伸。 在运行过程中，流体流过旁路口和环形间隙。 阻尼器组件包括杆和包括其中承载的流体的壳体。 活塞可滑动地携带在壳体中并可操作地附接到杆上。

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。