Exhaust gas cooling device for vehicle internal combustion engine has control element with which exhaust gas can be directed towards outer or inner path by control flaps, preferably offset and/or at intervals on vertical/ horizontal axles

摘要

The tubular device (5) has a catalyzer arranged downstream of it in the exhaust system. A cooled exhaust gas flow passes along the inside of the outer wall (14) of the device and a non-cooled flow along an inner path at a distance from the outer wall. The device contains a control element with which exhaust gas can be directed towards the outer or inner path by a number of control flaps (8) arranged one after the other in the flow direction, preferably offset and/or at intervals on vertical and/or transverse axles.