Pressure reservoir for vehicle braking system has pressure medium chamber at least partly bounded by partly permeable material enabling gas to escape and preventing pressure medium from escaping

摘要

The device has a housing (10) with at least one pressure medium opening (12), a membrane chamber (14) in the housing with a side wall (16) that is at least partially deformable and a pressure medium chamber (18) outside the membrane chamber. The pressure medium chamber is at least partly bounded by a partly permeable material (20) enabling gas to escape from the pressure medium chamber and preventing pressure medium from escaping. Independent claims are also included for the following: a method of manufacturing a pressure reservoir.