Patent ID: 8904812
Filing Date: 2014-12-09
Classification: F25B

Abstract:
1. A refrigeration cycle apparatus, comprising: a refrigerant circuit in which a compressor, a first heat exchanger, an expansion device, and a second heat exchanger are connected; a refrigeration cycle being constituted in which a refrigerant that transits through a supercritical state flows within the refrigerant circuit; the first heat exchanger being distributed with the refrigerant in a supercritical state and being functioned as a gas cooler, or being distributed with the refrigerant in a subcritical state and being functioned as a condenser; the second heat exchanger being distributed with the refrigerant in a low-pressure two-phase state and being functioned as an evaporator; refrigerating machine oil being enclosed within the refrigerant circuit, the refrigerating machine oil having miscibility with the refrigerant at or below a certain temperature and having immiscibility or poor miscibility with the refrigerant above the certain temperature when the refrigerant is in the subcritical state in which a pressure of the refrigerant is lower than a critical pressure of the refrigerant; and a flow dividing device being disposed at any position in a passage between an outlet side of the first heat exchanger and an inlet side of the expansion device, the flow dividing device being configured to divide a flow of the refrigerant into two or more parts, wherein the flow dividing device is disposed in a position where the refrigerant is in a liquid state when the refrigerant is operated in the subcritical state, and is configured such that a direction of the refrigerant flowing into the flow dividing device is substantially in a horizontal direction or substantially in a vertically upward direction.