Method for monitoring the refrigerant filling level in refrigerating system
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United States of America Patent
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Sep 10, 2002
Grant Date -
N/A
app pub date -
Jul 18, 2000
filing date -
Jul 27, 1999
priority date (Note) -
Expired
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Abstract
The invention relates to a method for monitoring the refrigerant filling level of a refrigerating system, in particular a motor vehicle air-conditioning system, with a compressor subdividing the refrigerant circuit into a high-pressure side and a low-pressure side. The evaporator temperature is determined at the evaporator at short time intervals by means of an evaporator temperature sensor. According to the invention, there is provision for a time meter, t, to be activated when the evaporator temperature exceeds a predetermined threshold temperature.
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