Patent ID: 7628008

Claim:
An exhaust system of a motor vehicle with a diesel engine, the exhaust system comprising: a particulate filter unit; a particulate receiving accumulator positioned close to the engine and arranged upstream of the particulate filter unit, wherein (i) the particulate receiving accumulator is operable to bind a partial quantity of the particulates contained in the exhaust gas flow, (ii) another partial quantity of the particulates contained in the exhaust gas flow flowing through the particulate receiving accumulator to the particulate filter unit, and (iii) the particulate receiving accumulator is arranged to be close to the engine so that the particulate receiving accumulator is at least partly regenerated during operation due to a NO 2 oxidation effect; and an exhaust gas recirculation arrangement that can supply exhaust gas to the engine, wherein the particulate receiving accumulator is arranged in the exhaust system such that the recirculated exhaust gas passes the particulate receiving accumulator, and wherein the particulate receiving accumulator is arranged upstream of a cooler seated in an exhaust gas recirculation pipe and with the particulate receiving accumulator being seated upstream of a bypass valve arranged in the exhaust gas recirculation pipe and connected upstream of the cooler, and wherein a portion of filtered exhaust gas flow from the particulate receiving accumulator is immediately directed into the bypass valve.