Methods and apparatus for cooling two refrigerator compartments

Details Methods and apparatus for cooling two refrigerator compartments Methods and apparatus for cooling two refrigerator compartments

1996-11-22

1998-03-31

Tapolcai, William E.

Refrigeration

Processes

Circulating external gas

62187, F25D 1708

Patent

active

057325618

ABSTRACT:
A refrigerator includes refrigerating and freezing compartments and a cooling cycle mechanism having only one evaporator. When either of the compartments needs to be cooled, the cooling cycle mechanism is started-up and operated to cool the refrigerating compartment, but not the freezing compartment, until refrigerant pressure in the evaporator reaches a steady state condition. Then, if the freezing compartment needs cooling, it is cooled. Thereafter, if the refrigerating compartment needs cooling, it is cooled. During periods when neither of the compartments needs cooling, the cooling cycle mechanism is shut down, and air from the refrigerating compartment is conducted through the evaporator to defrost the evaporator.

REFERENCES:
patent: 4122687 (1978-10-01), McKee
patent: 4614092 (1986-09-01), Kim et al.
patent: 5406805 (1995-04-01), Radermacher et al.
patent: 5487277 (1996-01-01), Bessler

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