Vapor compression refrigeration cycle apparatus provided with a hermetic compressor and the hermetic compressor

Hermetic compressor includes a closed container for storing a lubricating oil at the bottom, a motor having a stator and a rotor, a drive shaft attached to the rotor, a compression mechanism for compressing a refrigerant by the rotation of the drive shaft, sealing a rotating boosting mechanism for boosting the refrigerant gas provided above the rotor, so as to surround the rotation boost mechanism, and a cylindrical side wall which partitions the upper space of the motor to the outer space and the inner space, the refrigerant from the inner space comprising a discharge pipe to flow out to an external circuit of the container, the refrigerant gas discharged into the sealed container from the compression mechanism is moved to the upper end of the rotor through the rotor air hole of the rotor from the lower space of the electric motor after being flowed boosted to rotate boosting mechanism Te, it boosts the the space flows into the interior space, is discharged to the outside from the discharge pipe while suppressing the flow of the refrigerant gas from the outer space to the inner space.