Adjusting device for adjustment of delivery volume of positive displacement pump, has actuating medium formed by electrically operable valve control gear, where control valve is applied with adjusting force in ballast position

摘要

The adjusting device (4) has an actuating medium formed by an electrically operable valve control gear (11). A control valve (5) is applied with an adjusting force in a ballast position (C), and with another adjusting force in another ballast position (D). The former ballast position is a switching position (A) of the control valve, where the latter ballast position is another switching position (B) of the control valve.