System for an exhaust gas aftertreatment system and support structure

An exhaust aftertreatment system, comprising:

• an inlet coupleable to an exhaust source;
• a catalyst array coupled vertically above the inlet and including at least two catalysts arranged vertically within the array such that catalyst inlets and outlets of the at least two catalysts are arranged in parallel with one another;
• and
• an outlet manifold coupled vertically above the catalyst array and configured to expel exhaust gases out of the exhaust aftertreatment system, where the inlet, catalyst array, and outlet manifold are all stacked vertically in-line with one another and share a common longitudinal axis, where a direction of exhaust gas flow through the inlet, catalyst array, and into the outlet manifold is parallel to the longitudinal axis.

A system for a vehicle, comprising:

• an engine cab defined by a roof assembly and side walls;
• an engine positioned in the engine cab such that a first longitudinal axis of the engine is aligned in parallel with a length of the engine cab, the engine including an integrated front end;
• a turbocharger operably coupled to the engine and mounted to the integrated front end, the turbocharger having a vertical exhaust outlet arranged perpendicular to the first longitudinal axis;
• and
• an exhaust aftertreatment system coupled to the vertical exhaust outlet and mounted vertically above the turbocharger within a space defined by a top surface of the turbocharger, the roof assembly, and the side walls of the engine cab such that a second longitudinal axis of the exhaust gas treatment system is aligned perpendicular to the first longitudinal axis of the engine, where a direction of exhaust gas flow through the exhaust aftertreatment system is parallel to the second longitudinal axis, and where the vertical exhaust outlet is centered along the second longitudinal axis, the exhaust aftertreatment system comprising:
• a catalyst array including a plurality of catalysts arranged in parallel with one another and the second longitudinal axis;
• and
• an aftertreatment outlet manifold coupled vertically above the catalyst array, centered along the second longitudinal axis, and adapted to duct exhaust outside the engine cab.