Expansion Valve Position Control Systems And Methods
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United States of America Patent
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Issued Date -
May 22, 2014
app pub date -
Nov 13, 2013
filing date -
Nov 21, 2012
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A system includes a load module, a comparison module and a control module. The load module is configured to determine a current load of a compressor. The comparison module is configured to compare the current load to a previous load of the compressor to generate a comparison signal based on the comparison. The control module is configured to generate (i) a first control signal based on a superheat value of the compressor, and (ii) a second control signal based on the current load and the previous load. The control module is configured to, based on the comparison signal, control a position of an expansion valve according to either the first control signal or the second control signal.
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