Energy efficient insulation system for refrigerator/freezer

Details Energy efficient insulation system for refrigerator/freezer Energy efficient insulation system for refrigerator/freezer

1992-08-14

1993-10-12

Tanner, Harry B.

Refrigeration

Automatic control

Refrigeration producer

62430, 62DIG13, F25B 3902

Patent

active

052514552

ABSTRACT:
A refrigeration appliance having at least two refrigeration compartments, each compartment having its own access door, is provided wherein there is a first evaporator for the first compartment the first evaporator operating at a first pressure level and a second evaporator for the second compartment, the second evaporator operating at a pressure level higher than the first pressure level. There is a control device for directing refrigerant to a selected one of the evaporators from a condenser and for preventing a flow of refrigerant into the first evaporator when refrigerant is being directed into the second evaporator to cool the second compartment. Around the first compartment is placed insulation having a higher thermal resistance than that placed around the second compartment since the first compartment is kept at a lower temperature that the second compartment. A phase change material may be used in association with one or both of the evaporators.

REFERENCES:
patent: 2496220 (1950-01-01), Kleist
patent: 2552345 (1951-05-01), Philipp
patent: 2576663 (1951-11-01), Atchison
patent: 2595874 (1952-05-01), Nason
patent: 2641109 (1953-06-01), Muffly
patent: 2739456 (1956-03-01), Saunders
patent: 2768046 (1956-10-01), Evans
patent: 4439998 (1984-04-01), Horvay et al.
patent: 5082335 (1992-01-01), Cur et al.

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