arrangement for inserting a liquid medium into exhaust gas from a combustion engine

摘要

arrangement for inserting a liquid medium into a exhaust gas from a combustion engine arrangement (1) for inserting a liquid medium into a exhaust gas from a combustion engine, comprising: - a mixing chamber (2) for to be sprayed by the exhaust gases and delimited in a radially outward direction by a first tubular metal wall (6), and - an injection element (10) for injecting the liquid medium as a spray (11) into the chamber mixing channel (2), and - a discharge channel (12) extending along the exterior of the first tubular wall. the discharge channel (12) is delimited in a radially outward direction by a second tubular wall (13) which guides the exhaust gases flowing through the discharge channel so that they pass over the outer side of the section. (6a) of the first tubular wall to be impacted by spraying. a choke (14) is disposed in the discharge channel section (12a) which is located on the outside of the wall section (6a) to accelerate the exhaust gases so that they flow with an increased velocity over the exterior of the section. wall mounted (6a).