| 摘要 |
<p>PURPOSE: To control a valve system without simultaneous magnetization of two electromagnets by arranging a cutoff valve to cut off a control conduit at the time when the electromagnet is magnetized and a change-over valve to cut off the control conduit at the time when the electromagnet is magnetized and to connect a part in the downstream to a pressure reducing space. CONSTITUTION: A pressure medium supply part 18 of a load 17 is connected to a moving outlet 19 of a relay valve 20. A cut off valve 8 to cut off the control conduits 4, 24, 14 at the time when an electromagnet 7 is magnetized and a change-over valve 12 to cut off the control conduits 4, 24, 14 at the time when an electromagnet 10 is magnetized and to connect a part 14 in the downstream of the change-over valve 12 to a pressure reducing space are arranged in a row in the control conduits 4, 24, 14 of the relay valve 20.</p> |
