Hydraulic valve system
AssigneeSauer-Danfoss ApS
InventorsSiegfried Zenker, Thorkild Christensen
Life of this patent
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Abstract
A hydraulic valve system (1) has a supply connection arrangement, having a high-pressure connection (P) and a low-pressure connection (T), a working connection arrangement, having two working connections (A, B), which can be connected with a hydraulic motor (2), and a directional valve (4) between the supply connection arrangement (P, T) and the working connection arrangement (A, B), which is connected with the working connection arrangement (A, B) via working lines (17, 18), in which are arranged check valves (21, 22), which can be opened by means of pressure.
Claims7
A hydraulic valve system with a supply connection arrangement, having a high-pressure connection and a low-pressure connection, a working connection arrangement, having two working connections, which can be connected with a hydraulic motor, and a directional valve between the supply connection arrangement and the working connection arrangement, which is connected with the working connection arrangement via working lines, in which are arranged check valves, which can be opened by means of pressure, characterised in that a flow control valve (26) is arranged in at least one working line (17, 18), the flow control valve (26) being integrated in a pressure relief valve arrangement (25) having a valve, which is both pressure-operable as pressure relief valve and manually operable as flow control valve.
Dependencies are inferred from the claim text.