Hydraulic assembly and commercial vehicle
AssigneeDeere & Company
InventorsMANUEL BILLICH, MICHAEL MEID
Life of this patent
Estimating the term…
Abstract
A hydraulic assembly for a commercial vehicle includes a supply connector which is hydraulically connected or connectable to a pump outlet of a hydraulic variable pump and a feedback connector The hydraulic assembly includes an adjustment control, which depends on an outlet pressure of the variable pump and on a reported pressure of the feedback connector, for adjusting the variable pump. A hydraulic valve device is disposed in the flow path between the feedback connector and the adjustment control. The valve device includes a valve unit which is effective as a hydraulic connection or interruption in the flow path, depending on a shift position. Moreover, the disclosure relates to a commercial vehicle having such a hydraulic assembly.
Claims14
A hydraulic assembly for a commercial vehicle, comprising:
- a supply connector, which is hydraulically connected or connectable to a pump outlet of a hydraulic variable pump, as an interface for supplying hydraulic consumers of the commercial vehicle;
- a feedback connector as an interface for pressure feedback from consumers;
- an adjustment control, which depends on an outlet pressure of the variable pump and on a reported pressure of the feedback connector, for adjusting the variable pump;
- and
- a hydraulic valve device in the flow path between the feedback connector and the adjustment control, the valve device including a valve unit having a first shift position which is effective as a hydraulic connection in the flow path and a second shift position which is effective as a hydraulic interruption in the flow path.
A commercial vehicle comprising:
- a drive motor;
- a hydraulic assembly including:
- a supply connector, which is hydraulically connected or connectable to a pump outlet of a hydraulic variable pump, as an interface for supplying hydraulic consumers of the commercial vehicle;
- a feedback connector as an interface for pressure feedback from consumers;
- an adjustment control, which depends on an outlet pressure of the variable pump and on a reported pressure of the feedback connector, for adjusting the variable pump;
- and
- a hydraulic valve device in the flow path between the feedback connector and the adjustment control, the valve device including a valve unit having a first shift position which is effective as a hydraulic connection in the flow path and a second shift position which is effective as a hydraulic interruption in the flow path.
Dependencies are inferred from the claim text.