Methods of controlling a cooling system based on pressure differences across a scroll compressor
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United States of America Patent
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Oct 25, 2016
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N/A
app pub date -
Jan 31, 2014
filing date -
Feb 18, 2013
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Abstract
A method includes determining a pressure difference across a scroll compressor of a cooling system. The pressure difference is compared to a minimum differential pressure value. Pressure differences across the scroll compressor that are less than the minimum differential pressure value are associated with unloading the scroll compressor. Parameters including a pressure set point value and an absolute minimum pressure value are increased when the pressure difference is less than the minimum differential pressure value. Subsequent to the increasing of the parameters, the parameters are decreased when the pressure difference is greater than a sum of the minimum differential pressure value and a hysteresis value.
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