Throttle valve for fuel injection devices

The choke valve (3) has at least one piston (5) that can be moved by a medium under pressure against a countering force and has at least one choke point. A pressure limiting valve (35) is associated with the choke valve as a pilot stage and contains a piezo drive (26) with at least one piezoelement connected to a rod (25) that holds a valve body (24) in its closed position.