Multiple valve refrigeration system

Details Multiple valve refrigeration system Multiple valve refrigeration system

1974-09-03

1976-04-27

O'Dea, William F.

Refrigeration

Processes

Compressing, condensing and evaporating

62216, 62513, F25B 4100

Patent

active

039525333

ABSTRACT:
An energy saving refrigeration system as for refrigerated display cases in stores, free of the usual winter head pressure controls on the condenser equipment, capable of functioning satisfactorily with two-phase, liquid-gas mixtures of refrigerant inlet flow, there being a pair of valves immediately upstream of the evaporator, one being an expansion valve, and the other being a pressure regulator just upstream of the expansion valve adjusted such as to maintain a fixed discharge pressure to the expansion valve, this regulator discharge pressure set sufficiently above the evaporator boiling pressure and set sufficiently below the minimum inlet pressure to the pressure regulator.

REFERENCES:
patent: 2252300 (1941-08-01), McGrath
patent: 3434299 (1969-03-01), Nussbaum
patent: 3446032 (1969-05-01), Bottum

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