Refrigeration – Automatic control – Diverse – cascade or compound refrigeration-producing system
Patent
1978-04-03
1980-01-22
Wayner, William E.
Refrigeration
Automatic control
Diverse, cascade or compound refrigeration-producing system
62228, 62510, 236 1EA, F25B 700
Patent
active
041843410
ABSTRACT:
A refrigeration system including multiple parallel compressors for maintaining evaporator suction pressures within preselected ranges, said compressors being sequentially and cyclically operative through control switch means responsive to preselected upper and lower refrigerant suction pressures, a fluidic time delay system for operating the pressure responsive switch means comprising restrictor means interposed between the common suction header for the compressors and the pressure responsive switch means therefor to restrict refrigerant fluid flow to the pressure switches upon increases in suction header pressure, and unidirectional flow means for providing unrestricted reduction of the pressure acting on the switch means upon relative decreases in suction header pressure.
REFERENCES:
patent: 3199306 (1965-08-01), Paul
patent: 3513662 (1970-05-01), Golber
patent: 3791161 (1974-02-01), Kramer
Heywood Richard G.
Pet Incorporated
Tanner Harry
Wayner William E.
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