hydraulic pump unit for a hydraulic vehicle brake system

摘要

The present invention relates to a hydraulic pump unit (1) which is in a hydraulic block (17) is mounted a hydraulic vehicle brake system. The hydraulic pump unit has an electric motor (2) and a piston pump (4). The invention, the electric motor (2) as a hollow shaft motor and a ball screw (9) in a hollow shaft (11) of the electric motor (2), on the end of which a piston (13) of the piston pump (4) is attached.