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:
Jun. 05, 2007
Filed:
Jul. 21, 2004
Rémi Noirot, Puteaux, FR;
Rémi Noirot, Puteaux, FR;
Peugeot Citroen Automobiles SA, Velizy-Villacoublay, FR;
Abstract
Process for the decontamination of the emissions from an internal combustion engine (), the exhaust line () of which is equipped with a particle filter (), characterized in that an NOtrap additive is added to the fuel, so that the said additive is found trapped within the soot, and in that, at the time of the regenerations of the particle filter (), the engine () is controlled with a richness balance according to at least one alternation of a lean-mixture phase and of a rich-mixture phase, in order to bring about the adsorption of the NOfrom the exhaust gases by the said additive during the lean-mixture phase or phases and to bring about the oxidation of the soot particles by the adsorbed NOduring the rich-mixture phase or phases. Device for the implementation of this process.