Hydraulic system for training devices of biceps training machines for e.g. fitness training, has hydraulic unit pressurized with pressure by pump to increase force and/or speed of cylinder along training direction and/or training phase

摘要

The system has a pressurized and/or valve-steered cylinder (1) utilized as a resistance sensor for pressure, and/or force and/or displacement measurement. A hydraulic unit is pressurized with the pressure by a pump to increase force and/or speed of the cylinder along training direction and/or training phase. The pressure at the cylinder and a cam is measured to mechanically regulate or control a regulating valve and the pump in a regulating circuit by an electronic unit. The regulating valve is controlled based on the pressure and/or flow speed.