| 摘要 |
PURPOSE:To prevent a lubricant from being blown upward to the suction side of a compressor, by composing a control means for stopping the compressor, of a first control circuit for stopping the supply of lubricant in response to a detection signal and a second control circuit for stopping the driving of the compressor. CONSTITUTION:A check valve 4 is opened so that a lubricant introduced into a compressor 1 is conducted into a receiver tank 3. A starter 8 is provided with a timer 7 and connected to a driver 2 through the timer so that the driver 2 is stopped with the lag of an appropriate time set in the timer 7, after the starter 8 has received a detection signal from a pressure switch 9. Since a first and a second control circuits are thus provided, the compressor 1 is stopped after the lubricant in the region extending from the compressor 1 to the check valve 4 is introduced into the receiver tank 3. |
