Patent ID: 6196011
Filing Date: 2001-03-06
Classification: F25B,F25D,Y02B

Abstract:
A refrigeration system disposed within an outer cabinet having a freezer compartment and a fresh food compartment connected via a mullion opening, said refrigeration system comprising:a compressor, a condenser, an expansion device, and a freezer evaporator connected in series to expand and condense a refrigerant to cool said freezer compartment and said fresh food compartment;a discrete speed freezer compartment fan disposed adjacent said freezer evaporator for directing cooled air throughout said freezer compartment and through said mullion opening to said fresh food compartment; anda controller coupled to said compressor and said discrete speed freezer compartment fan to provide control signals thereto and to said compartment temperature sensors to receive temperature signals therefrom;wherein said controller generates control signals to said discrete speed freezer compartment fan to operate at a first high speed if said freezer compartment and said fresh food compartment demand cooling or if said fresh food compartment demands cooling and at a second low speed if only said freezer compartment demands cooling.