Patent ID: 6460357
Filing Date: 2002-10-08
Classification: F25B,F25D

Abstract:
A refrigerator comprising:a two-stage compressor having an outlet and first and second inlets, pressure of said first inlet being intermediate between pressures of the outlet at higher pressure and the second inlet at lower pressure; means for switching of refrigerant flow channels at downstream of a condenser connected with said outlet; means for separating gaseous and liquid phase parts of refrigerant from each other at downstream of a first evaporator for fresh food compartment, said first evaporator being connected from first exit of said means for switching through a first capillary tube; a first suction pipe connecting from a gaseous part exit of said means for separating to said first inlet of the two-stage compressor; a second capillary tube connecting from a liquid part exit of said means for separating to a second evaporator for freezer compartment; a bypass capillary tube connecting to the second evaporator from second exit of said means for switching; a second suction pipe connecting from the second evaporator to said second inlet of the two-stage compressor; and means for controlling a refrigeration cycle in a manner of bypassing the first evaporator when temperatures of said first suction pipe becomes lower than a predetermined value, by closing said first exit of the means for switching and by opening said second exit thereof.