Refrigeration – Automatic control – Time or program actuator
Patent
1992-09-03
1993-11-23
Tanner, Harry B.
Refrigeration
Automatic control
Time or program actuator
62131, 62161, 62180, G05D 2332
Patent
active
052633322
ABSTRACT:
A temperature control method for use in a refrigerator comprises a normal operation step for controlling a compressor and a fan to maintain a temperature inside a refrigerating compartment between a positive limit temperature and a negative limit temperature, both derived from a set temperature input by a user; a door-open control step for stopping the fan when a door-open is detected; a reset temperature setting step for setting a reset temperature based on said door-opening time; and a reset temperature operation step for executing a cooling operating by driving a compressor and a fan until the temperature inside the refrigerating compartment decreases to the reset temperature, lower than the set temperature, if it is detected during the normal operating that the reset temperature has been reset. The method enhances the refrigerating efficiency of a refrigerator by promptly restoring the temperature of food contained in the refrigerating compartment which has risen by external air flowing into the refrigerating compartment as a result of an open door.
REFERENCES:
patent: 4297852 (1981-11-01), Brooks
patent: 4481785 (1984-11-01), Tershak et al.
patent: 5003785 (1991-04-01), Petri et al.
Goldstar Co. Ltd.
Tanner Harry B.
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