Hydraulic system
AssigneeGrundfos Holding A/S
InventorThomas BLAD
Life of this patent
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Abstract
A method switches a switching device (4) between two switch positions in a hydraulic system. The hydraulic system apart from the switching device (4) includes a pump assembly (2). The pump assembly (2) can assume at least two different operating conditions. A switching-over of the switching device (4) is initiated by the pump assembly (2) via the hydraulic system. The switch positions of the switching device (4) are reached depending on a stay duration of the pump assembly (2) in at least one of the two operating conditions. Further, a hydraulic system for carrying out the method is provided.
Claims21
A method for switching a switching device between two switch positions in a hydraulic system, wherein the hydraulic system apart from the switching device comprises a pump assembly, the method comprising the steps of:
- providing the pump assembly such that the pump assembly assumes at least two different operating conditions and such that a switching-over of the switching device is initiated by the pump assembly via the hydraulic system;
- and
- reaching the switch positions of the switching device in dependance on a stay duration of the pump assembly in at least one of the two operating conditions.
A hydraulic system comprising:
- at least one pump assembly having at least two different operating conditions;
- a hydraulic connection;
- and
- a switching device which comprises two switch positions, wherein the switching device is connected to the pump assembly via the hydraulic connection and is configured such that the switch positions of the switching device are reached depending on a stay duration of the pump assembly in at least one of the two operating conditions.
Dependencies are inferred from the claim text.