Control device for a compressor in a refrigerating system
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United States of America Patent
Stats
-
Dec 4, 1984
Grant Date -
N/A
app pub date -
Dec 21, 1982
filing date -
Dec 21, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A control device is disclosed for controlling the operation of a compressor in an air conditioning or refrigerating system. The compressor includes a variable displacement device which changes the capacity of the compressor and a magnetic clutch which operates the compressor in response to an external drive mechanism. The control device controls the operation of both the variable displacement device and the magnetic clutch in response to the temperature of the cool air generated at the evaporation of the air conditioning or refrigerating system. Two temperature detectors having different thermal response characteristics detect the temperature of the cool air. The difference between the temperatures detected by these sensors is used by the control device to control the operation of the variable displacement device.
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