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:
May. 12, 1998
Filed:
Jan. 27, 1997
Wolfgang Maus, Bergisch Gladbach, DE;
Helmut Swars, Bergisch Gladbach, DE;
Rolf Bruck, Bergisch Gladbach, DE;
Emitec Gesellschaft Fuer Emissiontechnologie mbH, Lohmar, DE;
Abstract
A method for analyzing a condition of at least one partial volume of a catalytic converter through which a gas mixture flows, includes measuring a temperature with a sensor at least at one location or in a region within a partial volume during a change of chemical and/or physical properties of the gas mixture. The location or the region and a configuration of the sensor are selected in such a way that a reaction of the measured temperature to a change of the properties of the gas mixture is at least approximately representative of a reaction of the temperature in the partial volume of the catalytic converter. Set point values are determined for the respective change in the properties of the gas mixture on the basis of a thermodynamic model while taking physical boundary conditions and properties of the partial volume into account. The reaction of the measured temperature is determined and compared with the set point values.