Display driving device comprising an emission circuit and positive feedback circuit

An exhaust system for an internal combustion engine comprising:

• a conduit for conducting exhaust gas away from said internal combustion engine;
• and,
• a mixing section for intermixing exhaust gas and a reagent;
• said mixing section including:
• a mixing-section housing enclosing a mixing chamber and having a housing base;
• said housing base having at least one exhaust-gas inlet opening for admitting exhaust gas into said mixing chamber;
• a reagent dispenser for dispensing the reagent into said mixing chamber in a main dispensing direction (H);
• a reagent-receiving arrangement for receiving the reagent dispensed into said mixing chamber;
• said reagent-receiving arrangement including a plurality of reagent receivers disposed one behind another in said main dispensing direction (H);
• each one of said plurality of reagent receivers defining a reagent-receiving area positioned to face toward said reagent dispenser;
• at least two of said reagent receivers being directly adjacent to one another in said main dispensing direction (H), the reagent-receiving area of the reagent receiver of said at least two of said reagent receivers positioned closer to said reagent dispenser being completely overlapped at right angles to said main dispensing direction (H) by the reagent-receiving area of the reagent receiver of said at least two of said reagent receivers positioned further away from said reagent dispenser;
• a size of the reagent-receiving areas of the respective reagent receivers increasing in said main dispensing direction (H);
• an outer peripheral contour of the reagent-receiving arrangement corresponding to an outer peripheral contour of the reagent receiver having the largest reagent-receiving area;
• and
• said reagent dispenser having a dispensing location (O) positioned in each direction at right angles to said main dispensing direction (H) centrally with respect to said outer peripheral contour of the reagent-receiving arrangement.

A mixing section for an exhaust system of an internal combustion engine, the mixing section being for intermixing exhaust gas and reagent, the mixing section comprising:

• a mixing-section housing enclosing a mixing chamber and having a housing base;
• a reagent dispenser for dispensing the reagent into said mixing chamber in a main dispensing direction (H);
• said housing base having two exhaust-gas inlet openings for admitting exhaust gas into said mixing chamber, each one of said exhaust-gas inlet openings defining a respective longitudinal axis and being elongated in the direction of said longitudinal axis which is parallel to said main dispensing direction (H), said longitudinal axes overlapping one another;
• a reagent-receiving arrangement for receiving the reagent dispensed into said mixing chamber;
• said reagent-receiving arrangement including a plurality of reagent receivers disposed one behind another in said main dispensing direction (H);
• each one of said plurality of reagent receivers defining a reagent-receiving area positioned to face toward said reagent dispenser;
• said mixing-section housing having an exhaust-gas-deflecting wall situated opposite said housing base and defining a concave inner deflecting surface facing toward said mixing chamber;
• said concave inner deflecting surface exhibiting a vertex region(S) with maximum spacing from said housing base;
• and
• a vertical projection of the vertex region(S) onto said housing base being situated centrally between said two exhaust-gas inlet openings.

An exhaust system for an internal combustion engine comprising:

• a conduit for conducting exhaust gas away from said internal combustion engine;
• and, a mixing section for intermixing exhaust gas and a reagent;
• said mixing section including:
• a mixing-section housing enclosing a mixing chamber and having a housing base;
• a reagent dispenser for dispensing the reagent into said mixing chamber in a main dispensing direction (H);
• said housing base having two exhaust-gas inlet openings for admitting exhaust gas into said mixing chamber, each one of said exhaust-gas inlet openings defining a respective longitudinal axis and being elongated in the direction of said longitudinal axis which is parallel to said main dispensing direction (H), said longitudinal axes overlapping one another;
• a reagent-receiving arrangement for receiving the reagent dispensed into said mixing chamber;
• said reagent-receiving arrangement including a plurality of reagent receivers disposed one behind another in said main dispensing direction (H);
• each one of said plurality of reagent receivers defining a reagent-receiving area positioned to face toward said reagent dispenser;
• said mixing-section housing having an exhaust-gas-deflecting wall situated opposite said housing base and defining a concave inner deflecting surface facing toward said mixing chamber;
• said concave inner deflecting surface exhibiting a vertex region(S) with maximum spacing from said housing base;
• and
• a vertical projection of the vertex region(S) onto said housing base being situated centrally between said two exhaust-gas inlet openings.