发明名称 Hydraulic valve arrangement
摘要 The invention concerns a hydraulic valve arrangement (1) having at least two working connections (A, B), a check valve (5, 6) being allocated to each working connection (A, B), and a pressure relief valve (7, 8) being allocated to each check valve (5, 6), each pressure relief valve (7, 8) being connected to a control pressure passage (17, 18). The valve arrangement shall ensure a reliable, pressure-less lowering, also in connection with single-actuated consumers, and further enable a pressure-less float position. For this purpose, the check valves (5, 6) can be opened by means of tappets (20, 21), whose sides facing away from the check valves (5, 6) are ending in a pressure chamber (22), which is connected to the control pressure passage (17, 18) of one of the pressure relief valves (7, 8).
申请公布号 US7954420(B2) 申请公布日期 2011.06.07
申请号 US20080170056 申请日期 2008.07.09
申请人 SAUER-DANFOSS APS 发明人 JOERGENSEN MARTIN RAADKJAER;PETERSEN KEN
分类号 F15B13/042 主分类号 F15B13/042
代理机构 代理人
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