Refrigeration – Processes – Defrosting or frost inhibiting
Patent
1977-06-03
1978-10-31
King, Lloyd L.
Refrigeration
Processes
Defrosting or frost inhibiting
62196R, 62278, F25B 4100, F25B 4700
Patent
active
041226860
ABSTRACT:
To defrost a selected evaporator, in a system including at least two evaporators, the system condenser is isolated from the compressor and the selected evaporator receives hot, compressed refrigerant vapor directly from the compressor. The liquid refrigerant formed in the defrosting evaporator flows to the other evaporators in the system to permit them to continue in the refrigeration mode. A pressure regulated control system is provided which causes excess liquid refrigerant in the defrosted evaporator to be pumped out of that evaporator before the evaporator is reconnected to the compressor suction line. In a preferred embodiment, each evaporator includes a coil having a plurality of circuits connected between its inlet and outlet and each circuit is disposed in a horizontal plane at a different elevation from any of the other circuits. During the defrost cycle, hot compressed refrigerant vapor flows through either the normal inlet or outlet of the evaporator after passing through a hot gas inlet line which is arranged to pre-heat the lowermost circuits of the evaporator, thereby equalizing the defrosting rate of circuits located at different elevations.
REFERENCES:
patent: 2978877 (1961-04-01), Long
patent: 3138007 (1964-06-01), Friedman et al.
patent: 3150498 (1964-09-01), Blake
patent: 3184926 (1965-05-01), Blake
patent: 3234753 (1966-02-01), Quick
patent: 3343375 (1967-09-01), Quick
patent: 3427319 (1969-02-01), Seghetti
patent: 3464226 (1969-09-01), Kramer
patent: 3633378 (1972-01-01), Toth
patent: 3638444 (1972-02-01), Lindahl
patent: 3786651 (1974-01-01), Eschbaugh et al.
Datta Chander
Lindahl Herbert S.
Gulf & Western Manufacturing Company
King Lloyd L.
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