AIR CONDITIONER

摘要

PURPOSE: An air-conditioner is provided to implement injection on a compressor equipped with a multistage compressing part, thereby improving cooling and heating performance. CONSTITUTION: An air-conditioner includes a gas-liquid separator(100), an inflow part(110), a gas separating part(130), an internal heat exchanger(145). The gas-liquid separator separates a refrigerant into a liquid refrigerant and a gaseous refrigerant. The refrigerant flows into the gas-liquid separator through the inflow part. The gas separating part discharges the gaseous refrigerant separated in the gas-liquid separator. The internal heat exchanger inside the gas-liquid separator implements heat exchange with the refrigerant which flows into the gas-liquid separator through an inflow pipe.