Abstract: A retention system for use with an aftertreatment module is disclosed. The retention system may include a first support mat disposed on at least one surface of the at least one catalyst substrate. The retention system may also include at least one support plate having a corrugated portion disposed on the first support mat. The retention system may further include a second support mat disposed on the corrugated portion.

Abstract: A retention system for use with an aftertreatment module is disclosed. The retention system may include a first support mat disposed on at least one surface of the at least one catalyst substrate. The retention system may also include at least one support plate having a corrugated portion disposed on the first support mat. The retention system may further include a second support mat disposed on the corrugated portion.

Abstract: A heat exchanger for an exhaust gas recirculation unit is provided. A tube core of the heat exchanger includes a plurality of coolant channels disposed between a plurality of exhaust gas tubes extending from an upstream face to a downstream face. A coolant inlet line and a first coolant outlet line is disposed in a first quarter section of the tube core defined between the upstream face and one fourth of a length of the tube core adjacent to the upstream face. The first coolant outlet line is configured to draw at least a portion of a coolant flow across the upstream face and into the first coolant outlet line. Further, a second coolant outlet line is provided and is configured to discharge a remaining portion of the coolant flow from the plurality of coolant channels that was not drawn out of the first coolant outlet line.