Valve means

A valve means comprising a valve housing, which delimits a control chamber, into which a plurality of fluid ducts open and in which a control rocker member is arranged serving for the control of at least one of the fluid duct openings and adapted to be pivoted between at least two terminal positions, its pivotal position being able to be influenced by an electrically activated flexible element, which is adapted to act on an actuating portion of the control rocker member, wherein the control rocker member including its actuating portion is accommodated in the control chamber and is biased by spring means without involvement of the flexible element into a first one of the two terminal positions, the flexible element in a non-electrically excited condition within the control chamber being substantially free of mechanical stress and without spring bias, engaging the actuating portion of the control rocker member in the first terminal position of said member.