Mixer Assembly

A mixing device for mixing an injected additive with an exhaust gas stream output from a combustion engine, comprising:

• a tubular housing including an exhaust gas inlet and an exhaust gas outlet, the tubular housing defining a longitudinal axis;
• an intermediate wall positioned within the tubular housing between the exhaust gas inlet and the exhaust gas outlet;
• a mixing chamber including an inflow opening in fluid communication with the exhaust gas stream and the injected additive, the mixing chamber being at least partially defined by the intermediate wall;
• and
• a first deflector positioned on the intermediate wall and within the mixing chamber, the first deflector being oriented to deflect a first auxiliary exhaust gas stream passing through the intermediate wall in a radial and/or a circumferential direction.

A mixing device for mixing an injected additive with an exhaust gas stream output from a combustion engine, comprising:

• a tubular housing including an exhaust gas inlet and an exhaust gas outlet, the tubular housing defining a longitudinal axis;
• an intermediate wall positioned within the tubular housing between the exhaust gas inlet and the exhaust gas outlet, the exhaust gas stream passing over an edge of the intermediate wall, the intermediate wall including a first inflow opening and a second inflow opening;
• a mixing chamber in fluid communication with the exhaust gas stream and the injected additive, the mixing chamber being at least partially defined by the intermediate wall;
• a first deflector positioned within the mixing chamber, the first deflector being oriented to deflect a first auxiliary exhaust gas stream passing through the first inflow opening in a first circumferential direction;
• and
• a second deflector positioned within the mixing chamber, the second deflector being oriented to deflect a second auxiliary exhaust gas stream passing through the second inflow opening in a second circumferential direction opposite the first circumferential direction.