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:
Apr. 20, 2010
Filed:
Oct. 20, 2005
Emmanuel Poilane, Arpajon, FR;
Pascal Barrillon, Issy les Moulineaux, FR;
Olivier Meurisse, Antony, FR;
Fabrice Gauvin, Mennecy, FR;
Emmanuel Poilane, Arpajon, FR;
Pascal Barrillon, Issy les Moulineaux, FR;
Olivier Meurisse, Antony, FR;
Fabrice Gauvin, Mennecy, FR;
Renalt S.A.S., Boulogne Billancourt, FR;
Abstract
A method and device for estimating temperature of gases arising from internal combustion of an engine at the entrance to a system for post-treatment of the gases. The post-treatment system is downstream from a system for treatment of the gases, which may include a nitrogen oxide NOtrap, an oxidation catalyst, or a 4-way catalyst. The systems connect to each other by a line, wherein the treatment system is considered as the whole of a whole finite number n of fictive elementary reactors Rthat are perfectly agitated and serially connected, wherein the total number n of fictive elementary reactors Ris determined, in particular as a function of volume of the treatment system, and the fictive elementary reactors Rare numbered from 1 to n in the gas flow direction along the treatment system. Fictive elementary reactor Ris the last to be cross-flown by the gases before leaving the treatment system, and the temperature at the post-treatment system entrance downstream from the system for the treatment of the gases is calculated from the temperature inside the last fictive elementary reactor R.