Refrigerator system with subcooling flow control

Details Refrigerator system with subcooling flow control Refrigerator system with subcooling flow control

1992-04-09

1993-04-27

Wayner, William E.

Refrigeration

Automatic control

Refrigeration producer

62216, F25B 4100

Patent

active

052051315

ABSTRACT:
A vapor compression refrigeration system for cooling a cabinet having a thermostat for cycling the compressor off and on to maintain a predetermined temperature range in the cabinet includes a subcooling flow control valve at the inlet to the capillary tube restriction. The valve is operated by a sealed bellows containing a refrigerant so that the valve is responsive to the fluid entering the valve. The valve is calibrated so that only a subcooled liquid refrigerant can flow through the valve and if the entering refrigerant is above a predetermined level the valve will close to completely block all flow between the condenser and the evaporator, and the valve will stay in the closed position at all times when the compressor is not running.

REFERENCES:
patent: 1638958 (1927-08-01), Preston
patent: 2141459 (1938-12-01), Bronaugh et al.
patent: 2221062 (1940-11-01), Starr
patent: 3367130 (1968-02-01), Owens
patent: 4788828 (1988-12-01), Sato
patent: 4840038 (1989-01-01), Sato

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