Piston engine, in particular piston pump for conveying pressure medium in an electronically slip-controllable vehicle brake system and electronically slip-controllable vehicle brake system

摘要

The invention relates to a hydraulic piston machine (10), in particular a piston pump for pressure medium delivery in an electronically slip-controllable vehicle brake system. Piston machines (10) have a, a lifting movement exporting piston (18), which is slidably received in a cylinder (34) and a working chamber (20) limited. Sealing elements (32, 36) are provided to seal the piston (18) in the cylinder (34). There are known sealing elements (32, 36) made of elastomer in which carbon black is used as filler in order to improve the mechanical properties of the sealing elements (32, 36). The invention proposes to replace the filler carbon black at least partially by organic filler in order to improve the wear characteristics of the sealing elements (32, 36).