发明名称 Valve arrangement for controlling hydraulic fluid in an axial piston machine
摘要 In the stationary part ( 1 ) of an axial piston machine, a first flow duct ( 2 ) and second flow duct ( 5 ) intersect with the central axes ( 3 ) and ( 6 ). A valve body ( 20 ) having a valve cone ( 21 ) and a tubular guide piston which can be displaced in relation to the valve cone is situated in the extension of the central axis ( 3 ) of the first flow duct ( 2 ). The valve body ( 21 ) bears against a first valve seat ( 4 ) which is surrounded by an expanded section ( 7 ). The entire valve body ( 20 ) moves in a tubular partial housing ( 9 ) which is connected to the stationary part ( 1 ) in a sealed manner via a seal ( 11 ), a screw connection ( 10 ) and a flange ( 12 ) which rests on a shoulder ( 13 ) of the stationary part ( 1 ). A first compression spring ( 27 ) and a second compression spring ( 28 ) serve to support the valve body ( 20 ) and its parts in relation to one another. An extension stem ( 22 ) passes through the tubular guide piston and guides the second compression spring ( 28 ). The tubular partial housing ( 9 ) sits in a bore ( 8 ) of the stationary part ( 1 ). Two valves V 1 and V 2 are formed, the valves setting flow paths between the first flow duct ( 2 ) and the second flow duct ( 5 ) which differ according to pressure ratios.
申请公布号 US7140385(B2) 申请公布日期 2006.11.28
申请号 US20040929203 申请日期 2004.08.30
申请人 SAUER-DANFOSS INC. 发明人 THOMS REINHARDT;FIEBING CARSTEN
分类号 F16K17/18;F16K17/10 主分类号 F16K17/18
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