Hydraulic main brake cylinder arrangement for use in e.g. tandem type hydraulic vehicle brake system, has groove comprising protrusion unit that limits movement path of sleeve within groove, in transition area from base to rear wall

摘要

The arrangement (10) has a movable pressure piston (20) arranged in a housing (12). The housing comprises a circular groove (26) for holding a sealing sleeve (30). The groove comprises a front groove wall (26a), a rear groove wall (26b), and a base (26c) that connects the front and the rear walls. The sleeve has an outer sealing lip (32) for attachment at the base of the groove, and an inner sealing lip (34) for attachment at the piston. The groove has a protrusion unit (28) that limits a movement path of the sleeve within the groove, in a transition area from the base to the rear wall.