Hydraulic valve device
AssigneeHydac Filtertechnik GmbH
InventorWinfried Rüb
Life of this patent
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Abstract
The invention relates to a hydraulic valve device comprising a fluid connection arrangement (10) having different types of connections, and a mobile control device (18) for at least partially controlling connections of the fluid connection arrangement (10). As the control device (18) is provided with load reporting and load detecting connections (32,34; 36,38) that are interconnected and thereby associate a load reporting connection with a detection connection (32,38; 34,36), and, according to the displacement position of the control device (18), interconnect at least one part of the connections of the fluid connection arrangement (10) in a fluid-guiding manner, the control device can be brought with precision into the required functional positions, with a favourable dynamic driving behaviour.
Claims18
A hydraulic valve device with a fluid connector arrangement (10) comprising at least the following:
- a pressure supply connector P,
- a return flow connector R,
- a section load sensing connector LS,
- two control connectors (PA′) and (PB′), and
- two utility connectors A, B
- and with a displaceable control means (18) for at least partially triggering individual connectors of the fluid connector arrangement (10), characterized in that the control means (18) is provided with load reporting and load sensing connectors (32, 34;
- 36, 38) which, interconnected in pairs, assign one load reporting connector to one sensing connector (32, 34;
- 36, 38) and which, depending on the position of movement of the control means (18), interconnect at least some of the connectors of the fluid connector arrangement (10) to carry fluid.
Dependencies are inferred from the claim text.