IMPROVED CONTROL SYSTEM FOR A REFRIGERATOR WITH TWO EVAPORATING TEMPERATURES

摘要

An improved refrigerator that combines means for directing cooling to a fresh-food compartment and a freezer compartment with a variable-capacity compressor (26). During fresh-food cooling the compressor volumetric capacity is reduced to match capacity of the expansion device (32). The means for directing cooling may be multiple evaporators (12 and 16). Another option is a single evaporator (52) with a reversing fan (51) and flaps that respond to the direction of air flow to direct air flow between the evaporator and each compartment. Another embodiment comprises a natural-convection evaporator (202) with dampers for directing air flow. This last embodiment also allows automatic defrost with a natural-convection evaporator.