| 摘要 |
<p>PURPOSE:To decrease pressure to be generated at a return port and to prevent occurrence of turbulence in action of a pressures control valve, in an oil pressure control circuit which applies a desired oil pressure to a hydraulic cylinder and actuates it by means of a pressure control valve. CONSTITUTION:In an oil pressure control circuit 1 which applies a desired oil pressure to the first chamber 11 of a hydraulic cylinder 5 by means of a pressure control valve 3, the second chamber 9 of the hydraulic cylinder 5 and a return 51 are connected to each other through a first line 21.</p> |
