Exhaust processor assembly

An exhaust processor assembly for processing a flow of combustion product supplied by a source means, the assembly comprising

• a housing including inlet means coupled to the source means for admitting combustion product traveling in a certain flow direction into the housing and outlet means for exhausting combustion product from the housing,
• substrate means positioned in the housing in downstream relation to the inlet means for treating combustion product admitted into the housing through the inlet means, the inlet means having a longitudinal axis and extending between the source means and the substrate means to define a predetermined axial dimension along the longitudinal axis, the inlet means including first diverging nozzle means communicating with the source means for providing an increase in the cross-sectional area of the inlet means in the flow direction over a first predetermined axial distance, second diverging nozzle means communicating with the substrate means for providing an increase in the cross-sectional area of the inlet means in the flow direction over a second predetermined, axial distance, and transition means interconnecting the first and second diverging nozzle means in fluid communication for providing a substantially uniform cross-sectional area of the inlet means in the flow direction over a third predetermined axial distance, the summation of the first, second, and third predetermined axial distances being substantially equivalent to the predetermined axial dimension of the inlet means, and
• diverter means positioned in the inlet means for interrupting the flow of combustion product traveling through the inlet means toward the substrate means, the inlet means and the diverter means cooperating to provide distribution means for substantially uniformly distributing the flow of combustion product introduced into the housing across the inlet face of the substrate, thereby providing a distributed exhaust flow designed to load the substrate means substantially evenly to enhance combustion product treatment efficiency of the substrate means.