PROCEDE DE TRAITEMENT DES GAZ D'ECHAPPEMENT D'UN MOTEUR A COMBUSTION INTERNE ET LIGNE D'ECHAPPEMENT ASSOCIEE

摘要

The invention concerns an internal combustion engine exhaust line comprising a conduit (1) with a first end (2) connected to the engine output and comprising several monoliths or groups of monoliths for catalytic conversion of exhaust gases, arranged in series and separated from one another by void spaces. The invention is characterised in that the exhaust line further comprises means (110; 11) for permanently causing a first part of the exhaust gases to pass solely through at least one of said monoliths or group of monoliths (10) and the second part of the exhaust gases through all the monoliths (5, 10) so as to limit the temperature peaks borne by said monoliths and/or to cause them to operate within a predetermined temperature range.