Seal assembly for hydraulic piston-cylinder arrangements for e.g. clutch master cylinder of hydraulic clutch actuation or brake systems in motor car, has element with projection arranged on piston, where projection surrounds spine region

摘要

The assembly (10) has a sealing element (14) annularly arranged in a cylinder housing (12) around a movable piston (18), where the sealing element comprises a sealing region and a spine region (22) axially turned away from the sealing region. The sealing element comprises a seal lip (16) arranged in a display. A supporting element (24) has a projection (26) radially and inwardly arranged on the piston in an axial direction, where the projection partially surrounds the spine region. The projection is made of elastic material.