Refrigeration system with dual evaporators and suction line heating

A refrigeration system using a two phase refrigerant for use in a refrigerator having a freezer compartment and a fresh food compartment, said refrigeration system comprising:

• a first capillary tube;
• a first evaporator for providing cooling to the freezer compartment;
• a two stage compressor;
• a condenser;
• a second capillary tube;
• a second evaporator for providing cooling to the fresh food compartment;
• conduit means for connecting all the above elements together in series in the order listed, in a refrigerant flow relationship;
• and
• a phase separator having an inlet and two outlets, the first outlet for providing liquid phase refrigerant, the second outlet for providing gaseous phase refrigerant, said phase separator having its inlet connected to said second evaporator and its first outlet connected to the first capillary tube by said conduit means in a refrigerant flow relationship, the second outlet of said phase separator connected between the first and second stages of said compressor in a refrigerant flow relationship, a first fraction of said second capillary tube in a heat transfer relationship with the conduit means connecting the phase separator second outlet between the first and second stages of said compressor, a second fraction of said second capillary tube in a heat transfer relationship with the conduit means connecting said first evaporator with the suction side of the first stage of said compressor, said first capillary tube in a heat transfer relationship with a portion of the conduit means connecting said first evaporator with the suction side of said first stage compressor, said portion located between the first evaporator and where said second fraction of said second capillary tube is in a heat transfer relationship with the conduit means.