Refrigerating apparatus with turbo compressor

A cooling device for cooling a space, comprising:

• a driving motor having a rotation axis supported by a plurality of bearing members;
• a turbo compressor compressing a refrigerant, the turbo compressor being coupled to the rotation axis of the driving motor;
• a condenser provided to condense the refrigerant compressed by 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 pluralitv of bearing members;
• and
• a refrigerant discharging part provided to discharge the 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 to compress the refrigerant for a first time;
• a second compressing part provided on a second side of the driving motor to compress the refrigerant gas a second time after being first compressed by the first compressing part;
• a first refrigerant connecting part 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 first compressed by the first compressing part.