To prevent a refrigeration device from causing a malfunction by eliminating the shortage of oil in compressors on a lower stage side and a higher stage side which are linearly connected to a refrigerant circuit for a refrigerant cycle.
A refrigeration device includes an oil adjusting valve adjustment unit configured to set, when an oil surface sensor detects the shortage of oil in a lower stage side compressor 11, the opening degree of a second oil adjustment valve 5 wider than the opening degree when the oil shortage in the lower stage side compressor 11 has been detected with a first oil adjustment valve 6 opened, and to narrow, when the oil surface sensor detects the shortage of oil in a higher stage side compressor 12, the opening degree of the first oil adjustment valve 6 with the second oil adjustment valve 5 closed.
| JPS6387559A | 1988-04-18 | |||
| JP2009257705A | 2009-11-05 | |||
| JP2007155143A | 2007-06-21 | |||
| JP2009257706A | 2009-11-05 | |||
| JP2004353996A | 2004-12-16 | |||
| JP2008032337A | 2008-02-14 | |||
| JP2008138914A | 2008-06-19 | |||
| JP2009030954A | 2009-02-12 | |||
| JPH0383775U | 1991-08-26 | |||
| JPS5520349A | 1980-02-13 | |||
| JP2007127375A | 2007-05-24 | |||
| JP2001074319A | 2001-03-23 | |||
| JPS6387559A | 1988-04-18 | |||
| JP2009257705A | 2009-11-05 | |||
| JP2007155143A | 2007-06-21 | |||
| JP2009257706A | 2009-11-05 | |||
| JP2004353996A | 2004-12-16 | |||
| JP2008032337A | 2008-02-14 | |||
| JP2008138914A | 2008-06-19 | |||
| JP2009030954A | 2009-02-12 |
Hiroshi Takeuchi
Takahisa Shimada
Yuji Takeuchi
Katsumi Imae
Kazunari Ninomiya
Tomoo Harada
Seki Kei
Yasuya Sugiura
Daisuke Kawabe
Masanori Hasegawa
Tsuguya Iwashita
Koji Fukumoto
Ryo Maeda
Mawaki Hachizo
Yukichi Matsunaga
Kenji Kawakita
Shohei Okazawa