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May 2009 to 2000 Financial Analyst / Commercial UnderwriterJP Morgan Chase & Co Dallas, TX Oct 2007 to Apr 2009 Accounting and Securities AnalystCountrywide Home Loans Dallas, TX Aug 2007 to Sep 2007 Financial Analyst I
Education:
University of Texas at Austin Austin, TX May 2007 B.A. in Economics
Robert W. Cummings - Bedford TX Thien D. Ta - Saginaw TX
Assignee:
Behr Climate Systems, Inc. - Forthworth TX
International Classification:
F25B 4902
US Classification:
62129
Abstract:
A method for detecting a low level of refrigerant circulating through a motor vehicle refrigerant circuit having a compressor (12), a condenser (14), an evaporator (16), and an accumulator (18), includes detecting a partial loss of a refrigerant fluid by measuring the temperature difference of the refrigerant fluid between an evaporator inlet and an evaporator outlet. The method further includes detecting a complete loss of refrigerant by measuring the pressure of the refrigerant in the liquid phase between the condenser (14) and the evaporator (16). The temperature and pressure measurements are converted to engineering units and then compared to predetermined engineering units that correspond to separate ranges of ambient temperatures for determining the if the refrigerant level is low.