Hydrostatic machine having a control device having a return element for controlling a regulating valve

摘要

A hydrostatic machine having an actuating device for adjusting a displacement volume of the hydrostatic machine is provided. The actuating device has a return element for actuating a control valve as a function of a position of the actuating device. A valve unit is further provided for adjusting an actuating pressure of the actuating device, which is activated mechanically by means of the return element.

主权项

1. A hydrostatic machine comprising a control device for adjusting a displacement volume of the hydrostatic machine,
wherein the control device comprises a return element for controlling a regulating valve in dependence upon a position of the control device, wherein in addition to the regulating valve, a valve unit for adjusting a control pressure of the control device is provided, wherein a pressure medium flows via the regulating valve to a control pressure chamber of the control device, thereby charging the control pressure chamber, and the valve unit is mechanically actuated by the return element to counteract a further adjustment of the control device in a same movement direction by discharging the pressure medium from the control pressure chamber when a predetermined position of the control device is reached, wherein the return element comprises a control sleeve, wherein an arm is disposed on one side of the control sleeve of the return element and extends in a longitudinal direction of the control sleeve, wherein the valve unit comprises a displaceable valve piston, and wherein, to actuate the valve unit, the displaceable valve piston is mechanically displaced by an application of force by the arm of the control sleeve of the return element.