Patent ID: 9616396
Date: 2017-04-11
CPC Classifications: B01F,F01N,Y02T

Claim:
1. An aftertreatment system, comprising: a selective catalytic reduction system configured to receive an exhaust gas, the selective catalytic reduction system including at least one catalyst formulated to reduce constituents of the exhaust gas in the presence of an exhaust reductant; a mixing assembly positioned upstream of the selective catalytic reduction system, the mixing assembly including: a housing defining a flow path for the exhaust gas to flow therethrough, an injection port defined on a first sidewall of the housing, the injection port oriented at a predetermined angle relative to a longitudinal axis of the flow path, and a mixer positioned within the flow path of the housing downstream of the injection port, the mixer including a plurality of plates each positioned in the flow path of the exhaust gas such that the plurality of plates have progressively decreasing lengths, the plurality of plates comprising a first plate positioned distal to the injection port and adjacent to a second sidewall of the housing opposite to the first sidewall, the first plate having a first length substantially longer than remaining plates of the plurality of plates, the first plate extending in a direction upstream of the mixer; and an exhaust reductant injector positioned on the first sidewall of the housing proximal to the injection port and in fluidic communication with the flow path via the injection port.