Hydraulische Betätigungseinheit

摘要

A hydraulic actuating unit (1) is disclosed, having a positioning motor (2) which is arranged in a diagonal of a bridge circuit (3) having four electromagnetic valves (6, 7, 8, 9), the other diagonal being arranged between a pressure source (4) and a pressure sink (5). In such an actuating element, it is desirable for the response behaviour to be improved. For that purpose, all four electromagnetic valves (6, 7, 8, 9) are in the form of normally-open electromagnetic valves.