| 摘要 |
PURPOSE:To operate a turbine without stopping when a jam is caused in a filter, by selecting a solenoid valve through a pressure difference switch and feeding oil through a pipe of the solenoid valve. CONSTITUTION:During operation of a pump 3a, oil is fed to a filter 4b through a pipe A-C in a solenoid valve 20. In failure of a pump 3, during operation of the pump 3a, even if a filter 4a is caused a jam, the solenoid valve 20 is selected by a pressure difference switch 8a, and the oil is fed to a filter 4 through a pipe A-D, thus a turbine can be continuously operated. |
