REFRIGERATING CYCLE APPARATUS

PROBLEM TO BE SOLVED: To provide a refrigerating cycle apparatus, surely returning staying lubricating oil to a compressor even during the stop of a refrigerant flow. SOLUTION: This refrigerating cycle apparatus includes: a compressor 16; a condenser 17; two evaporators 15, 33 disposed in parallel between the condenser 17 and the compressor 16; a first low pressure side refrigerant pipeline 26 connected from one front seat side evaporator 15 to a suction part 16b of the compressor 16; and an underfloor low pressure pipeline 39 disposed in a position lower than the suction part 16b of the compressor 16 and an outlet part 33a of the other rear seat evaporator 33 to join a first low pressure side refrigerant pipeline 26 from the rear seat side evaporator 33, and connected to the suction part 16b of the compressor 16. The underfloor low pressure pipeline 39 is provided with a trap part 30b for temporarily retaining lubricating oil in the refrigerant circulated through the first low pressure side refrigerant pipeline 26. Thus, even during the stop of refrigerant flow, the retaining lubricating oil can be surely returned to the compressor. COPYRIGHT: (C)2008,JPO&INPIT