To reduce the effect on indirect warming of the earth by enhancing the efficiency furthermore.
The air conditioner comprises a compressor 1, a condenser 2, a first pressure reducer 3, and an evaporator 4 coupled through piping wherein the piping between the condenser 2 and the first pressure reducer 3 is branched and coupled with a second pressure reducer 5, an auxiliary heat-exchanger 6 and a gas-liquid separator 7. Gas side outlet of the gas-liquid separator 7 is coupled between the evaporator 4 and the sucking part of the compressor 1 and the liquid side outlet of the gas-liquid separator 7 is coupled between the first pressure reducer 3 and the evaporator 4. Coolant between the condenser 2 and the first pressure reducer 3 is subjected to heat exchange with coolant between the second pressure reducer 5 and the gas-liquid separator 7 through the auxiliary heat-exchanger 6.
| JPS613368 | [Title of the device] Refrigerating device |
| JP3963940 | Heat pump device |
| JP2022039474 | REGENERATIVE HEAT EXCHANGER |
OKAZA NORIO
YOSHIDA YUJI
