Mixing and/or vaporisation device

摘要

The device (7) has a pipe body (8) with blades (9) arranged adjacent to each other in the peripheral direction on one axial end that protrude radially inwards, thereby exposing a central through opening (10). The blades are set relative to the axial direction and the pipe body together with the blades is made from a single sheet metal body (11) by shaping : An independent claim is also included for an exhaust gas system of an internal combustion engine, especially in a motor vehicle.