The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 10, 2002
Filed:
Jul. 18, 2000
Applicant:
Inventors:
Herbert Wieszt, Grafenau, DE;
Wolfgang Straub, Deggingen, DE;
Assignee:
DaimlerChrysler AG, Stuttgart, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01F 2/300 ; F25B 4/900 ;
U.S. Cl.
CPC ...
G01F 2/300 ; F25B 4/900 ;
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.