Patent ID: 6880362

Claim:
A refrigerating cycle apparatus comprising: a gas-liquid separator in which a refrigerant is separated into a gas refrigerant and a liquid refrigerant, the gas-liquid separator has a gas refrigerant outlet and a liquid refrigerant outlet; a compressor disposed to communicate with the gas refrigerant outlet of the gas-liquid separator, the compressor compresses the refrigerant sucked from the gas-liquid separator and discharges a high temperature, high pressure refrigerant; a refrigerant radiator disposed downstream of the compressor, the refrigerant radiator radiates heat of the high temperature, high pressure refrigerant discharged from the compressor; a refrigerant evaporator disposed to communicate with the liquid refrigerant outlet of the gas-liquid separator, the refrigerant evaporator evaporates the refrigerant; an ejector disposed between the refrigerant radiator and the gas-liquid separator, the ejector having a high pressure refrigerant inlet portion communicating with the refrigerant radiator and a low pressure refrigerant inlet portion communicating with the refrigerant evaporator; a throttle device provided at a high pressure side of the ejector to control a pressure of the high pressure refrigerant; a discharge pressure sensor provided downstream of the compressor for detecting a pressure of the refrigerant discharged from the compressor; and a heat radiation reduction member provided to reduce heat radiation of the refrigerant radiator when a detected pressure of the refrigerant is equal to or less than a predetermined pressure.