Valve for controlling fluids has a piezo actuator, a mechanical changeover device to switch over the stroke in the piezo actuator, a readjusting element and an operating piston.

摘要

A mechanical changeover device (3) fits between a piezo actuator (2) and a readjusting element (4) in the operating direction of the piezo actuator so that the changeover device switches over the stroke of the piezo actuator in the operating direction and switches over the readjusting force of the readjusting element in an opposite direction. The changeover device has roller devices (7) to switch over the piezo actuator's stroke.