| 摘要 |
PURPOSE:To change the ratio of flow distribution and collection easily by a method wherein a choking means, provided in a flow path connecting liquid pressure chambers to ports, is arranged in a housing. CONSTITUTION:The housing 2 is provided with one set of first port 8, two sets of second ports 10, 11 and a spool chamber 12. A spool 14 is fitted slidably into the spool chamber 12. The housing 2 is also provided with liquid paths 28, 30, connecting the port 8 to two sets of liquid pressure chambers 24, 26. The variable choke valves 32, 34 are arranged in the paths. According to this method, it is enough to change only the choking means independently of the spool in case necessity to change the ratio of flow distribution and collection of the flow collecting valve is caused. |
