REFRIGERANT COMPRESSOR AND HEAT PUMP DEVICE

摘要

The efficiency of a compressor is increased by reducing pressure loss in a discharge muffler space into which a refrigerant compressed by the compression section is discharged. A low-stage discharge muffler space (31) is formed in an annular space extending around a drive shaft (6). A communication-opening flow guide is provided in the low-stage discharge muffler space (31) so as to cover a predetermined area of the opening of a communication opening (34) from the side on which the flow path in the reverse direction is provided, said flow path being one of two flow paths having different flow directions around the drive shaft (6) from a discharge opening (16), from which a refrigerant compressed by a low-stage compression section (10) is discharged, to the communication opening (34). The communication-opening flow guide changes the direction of the flow of the refrigerant to the direction to a communication flow path.