阅读说明：本技术 用于负载搬运载具的控制阀组件 (Control valve assembly for load handling vehicle ) 是由 A·布鲁克克斯 P·利德利 T·麦卡恩 于 2019-07-11 设计创作，主要内容包括：用于负载搬运载具比如叉车的控制阀组件包括具有孔的阀体和位于孔内能够沿着孔在至少两种操作配置之间轴向移动的阀芯。阀体包括连接到液压致动器的伺服端口、连接到泵的压力端口和连接到液压储罐贮器的储罐端口。阀可在第一和第二操作配置之间重新配置。在第一操作配置中,阀芯限定连接泵端口、伺服端口和储罐端口之间的流体路径使得在第一流向上流体能够从压力端口流向伺服端口和储罐端口并且在第二流向上流体能够从伺服端口流向压力端口和储罐端口。阀芯在第一操作配置中还可控制为可变地限制到储罐端口的流。在第二操作配置中,阀芯限定连接压力端口和致动器端口的流体路径,并可控制为可变地限制压力端口与致动器端口之间的流。(A control valve assembly for a load handling vehicle, such as a forklift truck, includes a valve body having a bore and a valve spool located within the bore that is axially movable along the bore between at least two operating configurations. The valve body includes a servo port connected to a hydraulic actuator, a pressure port connected to a pump, and a tank port connected to a hydraulic tank reservoir. The valve is reconfigurable between first and second operating configurations. In a first operating configuration, the spool defines a fluid path connecting the pump port, the servo port, and the tank port such that fluid is able to flow from the pressure port to the servo port and the tank port in a first flow direction and fluid is able to flow from the servo port to the pressure port and the tank port in a second flow direction. The spool is also controllable in the first operating configuration to variably restrict flow to the tank port. In a second operating configuration, the spool defines a fluid path connecting the pressure port and the actuator port and is controllable to variably restrict flow between the pressure port and the actuator port.)