Control method and apparatus for refrigeration system

Details Control method and apparatus for refrigeration system Control method and apparatus for refrigeration system

1989-08-11

1990-12-04

Wayner, William E.

Refrigeration

Processes

Compressing, condensing and evaporating

62181, 62184, F25B 100

Patent

active

049744208

ABSTRACT:
In a refrigeration system including a compressor, a condenser exposed to a cooling medium for causing condensation of the refrigerant within the refrigeration system and an apparatus for controlling the flow of the cooling medium, a control method and apparatus for operating the flow control apparatus in response to suction pressure or suction temperature as sensed at the compressor. In an exemplary system utilizing air as the cooling medium and a fan for causing airflow, the fan is started after compressor start-up when sensed suction pressure rises above a predetermined amount. An additional feature includes an adaptive time limited compressor cut-out protection for low ambient temperature operation.

REFERENCES:
patent: 2171239 (1939-08-01), Gygax
patent: 2917905 (1954-01-01), McGrath et al.
patent: 2943457 (1959-03-01), Wile et al.
patent: 3004402 (1960-03-01), Dart et al.
patent: 3364692 (1966-12-01), Reynolds
patent: 4555910 (1985-12-01), Sturges

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