Patent ID: 6892854
Filing Date: 2005-05-17
Classification: F01N,F02B

Abstract:
1. An exhaust treatment apparatus comprising: an outer shell having a core mounting location; an inlet pipe for directing an exhaust stream into the outer shell and an outlet for allowing the exhaust stream to exit the outer shell, the inlet pipe including a pipe wall; a core positioned within the outer shell, the core including a substrate defining a plurality of longitudinal channels that extend at least partially through the substrate, the core also including a catalyst, the core having an upstream face positioned within about 1-6 inches of the inlet pipe; a flow distribution arrangement located at an end portion of the inlet pipe for distributing the exhaust stream across the upstream face of the core; and an open region extending from the inlet pipe to the upstream face of the core, the open region being free of any obstructions to exhaust gas flow.