| 摘要 |
PROBLEM TO BE SOLVED: To provide a pilot pressure pattern selector valve for a hydraulic shovel attaining miniaturization. SOLUTION: The pilot pressure pattern selector valve comprises a body 2 formed with each inlet connected to one of each remote-controlled valve and each pilot chamber, and each outlet connected to the other of each remote-controlled valve and each pilot chamber; and a valve element turned to change the connection relationship between the respective inlets 6a-6h and the respective outlets. The respective inlets communicate with respective inlet ports 15a-15h formed to open to the valve element at a body side face which a turning shaft 9 of the valve element penetrates, and the respective inlet ports are arranged on a first circumference 17 and a second circumference 18 centering on the turning shaft 9. COPYRIGHT: (C)2008,JPO&INPIT
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