Patent ID: 6925832

Claim:
A high-low pressure dome type compressor comprising: a casing having a compression mechanism and an internal space that is divided into high-level and low-level pressure spaces facing each other across said compression mechanism; a drive motor drivingly connected to said compression mechanism and disposed in said high-level pressure space; a discharge pipe through which working fluid in said high-level pressure space is discharged outside said casing being disposed at an end of said drive motor that is adjacent to said compression mechanism; a connection passageway formed in said compression mechanism, through which working fluid compressed in a compression chamber of said compression mechanism flows out into a clearance space defined between said compression mechanism and said drive motor; and a motor cooling passageway formed between said drive motor and an inner surface area of said casing, through which working fluid which has flowed out of said connection passageway circulates between said clearance space and a side of said drive motor which is opposite to said compression mechanism.