To prevent the power recovered by an expander from being lost by an adjustment valve for adjusting a refrigerant flow rate when a heat exchanger is used as an evaporator during a time when a refrigerant releasing heat in the heat exchanger flows into the expander, in a refrigerating device in which the expander for recovering power is disposed in a refrigerant circuit.
The refrigerant circuit 10 is provided with a switching circuit 24 for switching a state that an expansion inflow line 48 is communicated with a heat source-side line 38, and an expansion outflow line 49 is communicated with an use-side line 39, and a state that the expansion inflow line 48 is communicated with the use-side line 39, and the expansion outflow line 49 is communicated with the heat source-side line 38. A heat source-side adjustment valve 43 for adjusting the refrigerant flow rate of a heat source-side heat exchanger 44 in a heating operation is disposed in a refrigerant circulation passage 52 connecting the expansion outflow line 49 and the heat source-side line 38 in the switching circuit 24.
| JP2022145118 | AIR CONDITIONER |
| JPH06341727 | AIR CONDITIONER |
| JP2000234814A | 2000-08-29 | |||
| JPS602774A | 1985-01-09 | |||
| JP2005134011A | 2005-05-26 | |||
| JP2003139429A | 2003-05-14 | |||
| JPH04177060A | 1992-06-24 | |||
| JP2006308207A | 2006-11-09 |
Hiroshi Takeuchi
Takahisa Shimada
Yuji Takeuchi
Katsumi Imae
Atsushi Fujita
Kazunari Ninomiya
Tomoo Harada
Iseki Katsumori
Seki Kei
Yasuya Sugiura