| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a spool valve device having first and second outlet ports with a spool hole reduced in size in the axial direction. SOLUTION: A valve body 30 of a hydraulic control valve device C as the spool valve device has an inlet port 44 opening to the spool hole 33 to which a spool 34 is slidably fitted, the first and second outlet ports 41, 42, a first valve body 31 in which a drain port 40 is formed, and a second valve body 32 in which a pilot pressure control valve is mounted for controlling the position of the spool 34, all of them being joined together on joint surfaces 31a, 32a parallel to the axial direction L1 of the spool hole 33. The inlet port 44 opens to the joint surface 31a, and a communication port 57 is formed in the spool 34. When the spool 34 occupies a first position, the first outlet port 41 is shut off the drain port 40 and communicated with the inlet port 44 and the second outlet port 42 is shut off the inlet port 44 and communicated with the drain port 40 via the communication port 57.</p> |
