| 摘要 |
<p>The present invention definitively returns a lubricating oil to a compressor, and is capable of sufficiently lubricating the compressor. This refrigeration device has: an emergency oil-return channel (88) for returning a lubricating oil stored in an oil separator (80) to a compressor (10); an oil-level sensor (19) for outputting a signal corresponding to the position of the lubricating-oil level in the oil reservoir (18) of the compressor (10); an opening/closing valve (89) provided in the emergency oil-return channel (88); and a controller (6). The oil separator (80) has an emergency oil-discharge port (82) connected to the emergency oil-return channel (88), and formed below the normal oil-discharge port (81). The controller (6) opens the opening/closing valve (89) when the lubricating-oil level is below a prescribed position.</p> |
