| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To shorten the time of reverse rotation operation of a turbo-compressor, when stopping the operation of a turbo-refrigerating machine. <P>SOLUTION: This turbo-refrigerating machine 1 has the turbo-compressor 21 having an oil tank 36 for storing lubricating oil, a delivery capacity control part 47 for controlling capacity of a refrigerant passing through the turbo-compressor 21, and a control part 50 for controlling operation of at least the turbo-compressor 21 and opening of the delivery capacity control part 47. The control part 50 stops operation of the turbo-compressor 21 after controlling the delivery capacity control part 47 in the closing direction for reducing its opening. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
