Refrigeration – Automatic control – Refrigeration producer
Patent
1978-06-16
1979-12-25
Wayner, William E.
Refrigeration
Automatic control
Refrigeration producer
318473, 361 22, 417 32, F25B 3102, F04B 4910
Patent
active
041798996
ABSTRACT:
A refrigerating system having a compressor; an inverter connected to the compressor for supplying electric energy to the compressor; and an input voltage control circuit provided on the input side of the inverter, wherein the input voltage control circuit generates output voltage signals which change at a predetermined level, including zero level, within a certain temperature range in response to the ambient temperature of the refrigerating system and in accordance with the temperature condition, the voltage thus produced being fed to the compressor via the inverter. The refrigerating system of this invention is, therefore, protected from failure or damage even when placed in an extreme temperature environment, and resumes automatically the supply of power to the compressor when the ambient temperature of the system is restored to the normal temperature.
REFERENCES:
patent: 3781140 (1973-12-01), Gladden
Sawafuji Electric Co. Ltd.
Wayner William E.
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