Magnetorheological (MR) piston ring and MR damper

专利名称：Magnetorheological (MR) piston ring and

MR damper having same

发明人：Lopez Jr., James L,Skarbek, Jaroslaw S申请号：EP14150800.2申请日：20080924公开号：EP2719919B1公开日：20190717

摘要：A magnetorheological (MR) piston ring (20) includes an MR-piston-ring bodydisposable within a cylinder (18) of an MR damper (10). The MR-piston-ring body has aradially inner surface defining a boundary of a longitudinally-extending MR passageway(28). The MR-piston-ring body includes a surface portion (30) which is slidingly engagablewith the cylinder (18) and which has first and second longitudinal ends (24 and 26). Thesurface portion (30) includes at least one surface groove (32) each defining a secondaryMR passageway and extending from the first (24) to the second (26) longitudinal end oreach defining an MR cavity extending from one of the first and second longitudinal endstoward, but not to, the other of the first and second longitudinal ends. An MR damper(10) including the MR piston ring (20) is also described.

代理机构：Houghton, Mark Phillip

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