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    • 8. 发明授权
    • Hydraulic pressure-regulating valve for construction equipment
    • 施工设备液压调压阀
    • US09261114B2
    • 2016-02-16
    • US13641318
    • 2010-05-17
    • Jin-Wook Kim
    • Jin-Wook Kim
    • E02F9/22F15B11/04F15B13/04
    • F15B11/04E02F9/2239E02F9/2267E02F9/2282F15B13/0402F15B2211/20576F15B2211/30565Y10T137/86493
    • A hydraulic control valve for a construction machine is provided. The hydraulic control valve includes a boom spool slidingly coupled into a valve block to be shifted to control the hydraulic fluid supplied from a first hydraulic pump and a second hydraulic pump to the actuator and provided with an internal path, a supply path of the first hydraulic pump and a supply path of the second hydraulic pump which are formed to be vertically symmetrical about the boom spool, check valves elastically supported to open and close the supply path of the first hydraulic pump and the supply path of the second hydraulic pump, respectively, bridge paths formed to be horizontally and vertically symmetrical with respect to a path formed on a sliding surface of the valve block to supply the hydraulic fluid, cylinder paths supplying the hydraulic fluid from the first hydraulic pump to the actuator.
    • 提供了一种用于建筑机械的液压控制阀。 液压控制阀包括滑动地联接到阀块中以移动以控制从第一液压泵和第二液压泵供给到致动器的液压流体并设置有内部路径的动臂柱塞,第一液压的供给路径 泵和第二液压泵的供给路径,其形成为围绕悬臂线轴垂直对称,分别弹性支撑以打开和关闭第一液压泵的供给路径和第二液压泵的供给路径的止回阀, 桥接路径形成为相对于形成在阀块的滑动表面上的路径水平和垂直对称以供应液压流体,将液压流体从第一液压泵供应到致动器的气缸路径。
    • 9. 发明授权
    • Fluid control system
    • 流体控制系统
    • US09228483B2
    • 2016-01-05
    • US14115250
    • 2011-05-20
    • Yasuhiro Kuze
    • Yasuhiro Kuze
    • F01P7/02F01P7/16F01P7/14F01P3/02
    • F01P7/16F01P7/14F01P7/165F01P2003/028F01P2031/32Y10T137/6416Y10T137/86493
    • A first fluid system includes a thermostat portion T, a valve portion V, and an ECU 30A. The thermostat portion T includes a first thermostat 18 in a first divergent pathway PB1 and a second thermostat 19 in a second divergent pathway PB2. The valve portion V includes a valve mechanism in at least a second portion SG2 of portions SG1, SG2, SG3. In the ECU 30A, achieved is a control unit that controls the valve portion V to switch a flow control state of at least one of the valve mechanism of the valve portion V when one of an open failure and a close failure occurs in one of the thermostats 18, 19.
    • 第一流体系统包括恒温器部分T,阀部分V和ECU 30A。 恒温器部分T包括第一发散通路PB1中的第一恒温器18和位于第二发散通路PB2中的第二恒温器19。 阀部分V包括在SG1,SG2,SG3的至少第二部分SG2中的阀机构。 在ECU30A中,实现了控制单元,该控制单元控制阀部V,以在其中一个中的一个中发生开启故障和闭合故障中的一个时,切换阀部V的阀机构中的至少一个的流量控制状态 恒温器18,19。