Exhaust line for motor vehicle, has exhaust gas cooling unit disposed between outlet of catalytic converter and outlet towards atmosphere, and comprising longitudinal or helical blades disposed on exhaust gas circulation conduit

摘要

The line (50) has an exhaust gas cooling unit (60) disposed between an outlet of a catalytic converter (14) and an outlet (17) towards atmosphere. The cooling unit has longitudinal or helical blades that are disposed on an exhaust gas circulation conduit (40). The converter treats the exhaust gas that is provided from an exhaust manifold (13) by a blow-off pipe (20), where the manifold collects the exhaust gas issued from combustion. An independent claim is also included for a motor vehicle comprising an exhaust line.