Exhaust processor

An exhaust processor assembly comprising

• a housing including an inlet for introducing a combustion product into the housing and an outlet for exhausting combustion product from the housing,
• first substrate means, situated in a forward position within the housing, for treating combustion product introduced into the housing through the inlet, the first substrate means having an outer boundary defining an interior region,
• second substrate means, situated in a rearward position within the housing to lie adjacent to the first substrate means, for treating combustion product introduced into the housing through the inlet, and
• bypass means, within the housing, for diverting a portion of the combustion product introduced into the housing through the inlet to the second substrate means for treatment therein without flowing through the interior region defined by the first substrate means to reach the second substrate means such that said diverted portion bypass the first substrate means and the remaining undiverted portion enters the interior region defined by the first substrate means,
• whereby said diverting portion of the combustion product introduced into the housing is intercepted and treated by only the second substrate means prior to being exhausted from the housing through the housing outlet.

An exhaust processor assembly comprising

• a housing including an inlet for introducing a combustion product into the housing and an outlet for exhausting combustion product from the housing,
• an elongated partition member rigidly fixed within the housing to divide the interior of the housing into only two longitudinally extending chambers, each longitudinally extending chamber being in communication with the housing inlet and outlet, a first of the chambers defining a first delivery path for conducting a portion of the combustion product through the housing, a second of the chambers being arranged in side-by-side relation to the first chamber to define a separate second delivery path for conducting a remaining portion of the combustion product through the housing,
• first substrate means for treating said portion of combustion product, the first substrate means being positioned in the first chamber, and
• second substrate means for treating said remaining portion of combustion product, the second substrate means being positioned in the second chamber so that said remaining portion of combustion product is conducted to the second substrate means without flowing through the first longitudinally extending chamber.