Hydraulic cylinder i.e. master cylinder, for hydraulic release system, that is utilized for actuating clutch of motor vehicle, has annular sealing-/stripping element between piston and housing, and formed as single piece at piston

摘要

The cylinder has a piston (2) movable using a piston rod (3) and guided into a cylindrical housing (1). An annular sealing-/stripping element (4) is provided between the piston and the cylindrical housing. The sealing-/stripping element is formed as a single piece at the piston by injection molding. The piston and the sealing-/stripping element are produced in a two-phase injection molding. The piston is made from vyncolit material. An inner diameter of the sealing-/stripping element is smaller than the diameter of the piston.