Method for controlling operation of a compressor
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United States of America Patent
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Apr 10, 2012
Grant Date -
May 3, 2007
app pub date -
Apr 10, 2004
filing date -
Jul 4, 2003
priority date (Note) -
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Abstract
In a method for controlling operation of a compressor, the compressor is shut off by a control device in order to prevent thermal damages when an estimated temperature value Ts calculated by said control device exceeds an upper threshold value Tmax while the compressor remains on or is allowed to be turned on when there is a need for compression and a lower threshold value Tmin is not reached. In order to be able to more accurately estimate the estimated temperature and increase the thermal availability of the compressor, the estimated temperature value Ts is indirectly and cyclically determined by means of a mathematical-physical model that characterizes the cooling and heating properties of the compressor.
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