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    • 2. 发明公开
    • Hydraulic control valve
    • Hydrauliksteuerventil
    • EP2314885A3
    • 2013-12-25
    • EP10166329.2
    • 2010-06-17
    • Volvo Construction Equipment Holding Sweden AB
    • Ku, Bon Seuk
    • F15B13/04F15B20/00F15B13/02
    • F15B13/0402F15B13/024F15B2211/50527F15B2211/7058F15B2211/761F15B2211/853Y10T137/2574Y10T137/2622Y10T137/86614Y10T137/8671Y10T137/86879Y10T137/87169Y10T137/87193Y10T137/87225
    • The hydraulic control valve includes a valve block in which a first pump path (3) and second pump paths (4,5) are formed, a spool (2) shiftably coupled to the valve block to control the hydraulic fluid supplied to a hydraulic motor, first and second actuator paths (8,9) connecting the second pump paths to first and second actuator ports (6,7) according to the shifting of the spool, tank paths (11,14) connecting the first and second actuator paths (8,9) to a hydraulic tank according to the shifting of the spool (2), first to fourth flow paths (21,23,25,26) in which first to fourth check valves (20,27,24,28) are installed, respectively, a path having one end communicating with a crossing part between the first and third flow paths and the other end communicating with a crossing unit between the second and fourth flow paths, and a relief valve (10) installed in the path to relieve hydraulic fluid in one of the first and second actuator ports in which the overload occurs and to provide a supplement supply of the relieved hydraulic fluid to the other actuator port in which the overload does not occur.
    • 液压控制阀包括形成有第一泵通道(3)和第二泵通路(4,5)的阀块,可移动地联接到阀块的阀芯(2),以控制供给液压马达的液压流体 ,第一和第二致动器路径(8,9),其根据卷轴的移动将第二泵路径连接到第一和第二致动器端口(6,7),连接第一和第二致动器路径的油箱通道(11,14) 根据所述阀芯(2)的移动,第一至第四流路(21,23,25,26)中的第一至第四止回阀(20,27,24,28)的液压箱 分别安装有一端与第一和第三流路之间的交叉部分连通的通路,另一端与第二和第四流路之间的交叉单元连通;以及安全阀(10),其安装在 减轻其中发生过载的第一和第二致动器端口中的一个中的液压流体并提供作为 将释放的液压流体补充供给到其中不发生过载的另一致动器端口。
    • 10. 发明公开
    • HYDRAULISCHE VENTILVORRICHTUNG
    • EP2235380A1
    • 2010-10-06
    • EP08871663.4
    • 2008-12-18
    • Hydac Filtertechnik Gmbh
    • RÜB, Winfried
    • F15B13/04F15B13/08
    • F15B13/0417F15B13/0402F15B13/0839F15B13/0871Y10T137/87169Y10T137/87193Y10T137/87209Y10T137/87249
    • The invention relates to a hydraulic valve device having a fluid port arrangement (10) with various ports which runs at least partially in the valve housing (14), and having a movable control device (18) for at least partially activating ports of the fluid port arrangement (10), wherein the control device (18) can be acted on at two opposite control sides with a control pressure (XA, XB) of an assignable activation unit (46). A valve device which is of narrow construction and which is functionally reliable is created in that a media-conducting duct (66), the guide path of which runs at least partially as an open duct channel which can be closed off by a cover part or by other housing parts of the multi-part valve housing (14), serves to conduct the control pressure (XB) from the activation unit (46) to the assignable control side of the control device (18).
    • 本发明涉及一种液压阀装置,该液压阀装置具有流体端口装置(10),该流体端口装置具有至少部分地在阀壳体(14)中延伸的各种端口,并且具有用于至少部分地激活流体端口的可移动控制装置(18) (10),其中所述控制装置(18)可以在可分配的激活单元(46)的控制压力(XA,XB)的两个相对的控制侧被加载。 构造狭窄且功能可靠的阀装置由于介质传导管道(66)而产生,所述介质传导管道(66)的引导路径至少部分地作为敞开的管道通道延伸,所述敞开的管道通道可以由盖部件封闭或者 通过多部分阀壳体(14)的其他壳体部分用于将来自激活单元(46)的控制压力(XB)传导至控制装置(18)的可分配控制侧。