Method and apparatus for preventing floodback in cooling apparatus
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United States of America Patent
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-
Dec 6, 1988
Issued Date -
N/A
app pub date -
Apr 3, 1987
filing date -
Nov 4, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method and apparatus for preventing flood back in refrigeration systems which include a compressor, expansion valve and evaporator coil, by sensing the temperature differential across the evaporator coil and deactivating the compressor when the differential exceeds in the negative direction a predetermined amount of superheat. A second embodiment uses the sensing to operate flooded systems at peak efficiency at or near 0 superheat. A third embodiment uses all electronic circuitry to operate the system.
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