REFRIGERATION CYCLE DEVICE

摘要

A refrigeration cycle apparatus in which working refrigerant is a zeotropic refrigerant mixture containing at least a first refrigerant and a second refrigerant having a higher boiling point than the first refrigerant at the same pressure, the refrigeration cycle apparatus including at least a main passage in which a compressor, a first heat exchanger, a first expansion valve, and a second heat exchanger are sequentially connected, the first refrigerant having a property of disproportionation, the first refrigerant having a smaller composition ratio in the compressor than a composition ratio of the first refrigerant passing through the main passage.

主权项

1. A refrigeration cycle apparatus operating with working refrigerant being a zeotropic refrigerant mixture containing at least first refrigerant and second refrigerant having a higher boiling point than the first refrigerant at a same pressure,
the refrigeration cycle apparatus comprising at least a main passage in which a compressor, a first heat exchanger, a first expansion valve, and a second heat exchanger are sequentially connected, the first refrigerant having a property of disproportionation, the main passage includes an oil separator connected between the compressor and the first heat exchanger and configured to separate the zeotropic refrigerant mixture containing the first refrigerant at a composition ratio to the refrigerant mixture, the composition ratio being lower than a composition ratio of the first refrigerant in the zeotropic refrigerant mixture passing through the main passage, the zeotropic refrigerant mixture having the lower composition ratio of the first refrigerant and separated by the oil separator, being supplied into the compressor from the oil separator through a bypass.