Hydraulic vehicle roof operation arrangement for cabriolet vehicle; has valve-controlled radial piston pump that drives several common pump elements for working cylinders

摘要

The arrangement has a hydraulic pump (8) connected to several working cylinders (1-4). The pump is formed as a valve-controlled radial piston pump (8) that drives several common pump elements (10). The outputs of the pump elements are connected individually or partly combined with individual or partly combined working cylinders. Different groups of working cylinders have individual hydraulic circuits (11-13) to supply different pressure levels.