In a gas-liquid separator for an ejector cycle, a tank body is constructed such that a refrigerant sprayed from a refrigerant inlet forms a spiral stream in the tank body. The tank body has a horizontal longitudinal axis greater than a vertical axis. The refrigerant inlet is located at a distance from the horizontal longitudinal axis of the tank body such that the refrigerant sprayed from the refrigerant inlet generates a turning force and spirally flows. With this, a gas-liquid separation distance of the refrigerant increases. |