Patent ID: 7225611
Filing Date: 2007-06-05
Classification: F01N,F02D,Y02A,Y02T

Abstract:
1. Process for the decontamination of the emissions from an internal combustion engine, the exhaust line of which is equipped with a particle filter which is periodically regenerated by combustion of the soot particles which are deposited therein, wherein an additive of NO x trap type is added to the fuel feeding said engine, so that said additive is found trapped within said soot, and, 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, so as to bring about the adsorption of the NO 2 from 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 NO 2 during the rich-mixture phase or phases, wherein said additive comprises a mixture of K