专利名称：Hydro-pneumatic damping device
发明人：Robert Eusemann,Gunther Handke,Manfred
Koller
申请号：US06/115500申请日：19800125公开号：US04287970A公开日：19810908
摘要：A hydro-pneumatic damping device particularly for spring legs of automotivevehicles comprises an inner cylinder, an outer container, a central cavity within the innercylinder, an annular cavity between the inner cylinder and the outer container, a pistonrod with a piston unit, venting passage means between the central cavity and the annularcavity extending across a cylinder closing unit and check valve means associated to saidventing passage means. The check valve means comprise an annular check valve memberin frictional sliding engagement with the piston rod for axial movement with the pistonrod toward a sealing position during inward movement of the piston rod and toward anopening position during outward movement of the piston rod, first and second abutmentmeans being provided for defining said sealing position and said opening position of saidannular check valve member respectively.
申请人：FICHTEL & SACHS AG
代理机构：Toren, McGeady and Stanger
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