Refrigeration – Automatic control – Of external fluid or means
Patent
1990-08-01
1991-10-15
Wayner, William E.
Refrigeration
Automatic control
Of external fluid or means
62217, 62510, F25D 1700
Patent
active
050563289
ABSTRACT:
A refrigerator apparatus is provided having a cabinet with a freezer compartment and a fresh food compartment. A refrigeration system is included having a first expansion valve, a first evaporator situated in the freezer compartment, a first and second compressor, a condenser, a second expansion valve, and a second evaporator situated in the fresh food compartment all connected together in that order and in series in a refrigerant flow relationship. First and second fans are provided in the freezer and fresh food compartments, respectively. A servovalve is connected between the first evaporator and the first compressor for reducing refrigerant flow through the first evaporator when activated. A first thermostatic controller situated in the freezer compartment causes operation of the compressors and fans when a selected temperature in the freezer is exceeded. A second thermostatic controller situated in the fresh food compartment causes operation of the servovalve when a predetermined value is reached.
REFERENCES:
patent: 3005321 (1961-10-01), Devery
patent: 3107502 (1963-10-01), Herndon, Jr. et al.
patent: 3119240 (1964-01-01), Devery
patent: 3359751 (1967-12-01), Stevens
patent: 3455119 (1969-07-01), Bright
patent: 4748831 (1988-06-01), Shaw
patent: 4910972 (1990-03-01), Jaster
Bessler Warren F.
Jaster Heinz
Davis Jr. James C.
General Electric Company
Scanlon Patrick R.
Wayner William E.
Webb II Paul R.
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