Patent ID: 7451616

Claim:
A refrigerating apparatus, comprising: a turbo compressor comprising a driving motor and a plurality of bearing members supporting a rotation axis of the driving motor; a condenser provided to condense a refrigerant gas compressed from the turbo compressor; a refrigerant supplying part supplying a part of a refrigerant discharged from an outlet of the condenser to the turbo compressor to cool down the driving motor and the bearing members; and a refrigerant discharging part provided to discharge a cooling refrigerant supplied by the refrigerant supplying part and passing through the turbo compressor, wherein the turbo compressor further comprises a first compressing part provided on a first side of the driving motor and compressing the refrigerant gas once; a second compressing part provided on a second side of the driving motor and compressing the refrigerant gas one more time which is once compressed by the first compressing part; a first refrigerant connecting part provided to mix a part of the refrigerant discharged from the outlet of the condenser with the cooling refrigerant discharged from the refrigerant discharging part; and a second refrigerant connecting part supplying the cooling refrigerant mixed by the first refrigerant connecting part to the turbo compressor to be mixed with the refrigerant gas once compressed by the first compressing part.