| 摘要 |
A compensator valve spool (CS) for a load-sensing valve device (100) comprises a pressure chamber (21), a compensating throttle (a), a pressure introducing chamber (25), a pressure introducing port (24), a maximum load pressure introducing chamber (22), and a selector valve (26). A groove (27) is formed around the pressure introducing port (24), and the area of an opening in the pressure introducing port (24) is made smaller during a process of moving the compensator valve spool (CS) by the relative movement of the groove (28) in a channel (23) that communicates with an actuator side. |
