Mixer devices for exhaust gas aftertreatment systems in automobiles, exhaust aftertreatment systems and automobiles

摘要

The present invention relates to a mixer apparatus (1) for an exhaust gas aftertreatment system for an automobile having a cylindrical housing (4) having an outer wall (5), a first end wall (6) and a second end wall Wherein at least one air guide element 14 extending in the form of a curved line is arranged in the housing 4 and the outer wall 5 is provided with an injection opening 11 for the exhaust gas post- Guides the exhaust gas flow from the at least one inlet opening (8,9, 10) to the outlet opening (15) defined in the second end wall (7). The inlet openings 8,9 and 10 are formed in the first end wall 6 and one or more impingement faces 20 for the exhaust gas flow and / , 9, 10), in which case the impact surface 20 is at least substantially vertically aligned with respect to the direction of injection of the exhaust gas post-treatment agent.