Patent ID: 6041594
Filing Date: 2000-03-28
Classification: B01D,B01F,B05B,F01N,Y02C,Y02T

Abstract:
A mixture delivery device for conveying at least one reducing agent into an exhaust gas system for an internal combustion engine, comprising a mixture carrying line that carries a mixture made up of air and at least one reducing agent through a wall of the exhaust gas system and ends at a spray head inside of the exhaust gas system, said mixture carrying line (38) is connected upstream to a mixture metering valve (21) that meters the mixture made up of air and the at least one reducing agent, a mixture carrying conduit is embodied in said mixture carrying line, the mixture carrying line (38) has a first section (46), which extends lateral to a longitudinal axis (47) of the exhaust gas system (23), which longitudinal axis extends in the exhaust gas flow direction (48), and has a second section (51) that is connected to the first section (46) and extends concentrically to the longitudinal axis (47) of the exhaust gas system (23), and a spray head (53) is provided on a downstream end of the second section (51) and is connected directly with said mixture carrying line (38), said spray head (53) has a throttling blow-out opening (57) that extends concentrically to the longitudinal axis (47) of the exhaust gas system (23) and a cross section of this opening is smaller than a cross section of the mixture carrying conduit (52).