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。