EXHAUST LINE FOR A MOTOR VEHICLE, AND METHOD FOR PURIFYING THE EXHAUST GASES PRODUCED BY A HEAT ENGINE WITH WHICH SAID VEHICLE IS PROVIDED

摘要

The invention relates to an exhaust line (2) for exhaust gases (3) produced by a heat engine (1). The exhaust line (2) includes a pipe (5) for circulating the exhaust gases (3), said pipe being provided with members for chemically and/or physically treating the exhaust gases (3), a particle filter, and an SCRS system. The SCRS system includes an upstream SCR element (SCR1) and a downstream SCR element (SCR2/FAP) that are consecutively arranged in series on the pipe (5) and spaced apart from one another while being structurally separated from one another by an intermediate area (ZI) of the exhaust line. The downstream SCR element is built into the particle filter with which the former forms a single integral element (SCR2/FAP) impregnated with a catalytic agent for reducing nitrogen oxides.