Patent ID: 8097055
Filing Date: 2012-01-17
Classification: F01N,Y10S

Abstract:
1. A system for treating exhaust gas from an engine, comprising: a housing with a first longitudinal axis and having an inlet port and an outlet port, the housing defining a first generally longitudinal flow path arranged generally along or generally parallel with the first longitudinal axis of the housing and between the inlet port and the outlet port; a fluid treatment element arranged in the first generally longitudinal flow path of the housing; a conduit defining a second longitudinal axis and forming a second flow path generally along the second longitudinal axis, the second longitudinal axis being generally transverse to the first longitudinal flow path, the conduit being configured to communicate exhaust gas with a first port of the housing and having first and second tubular portions generally aligned with the second longitudinal axis of the conduit, the first tubular portion having a first cross-section defined in part by a first inner diameter measured in a direction generally parallel with the first longitudinal axis of the housing, the second tubular portion having a second cross-section arranged proximate the first port of the housing and defined in part by a second inner diameter measured in a direction generally parallel with the first longitudinal axis of the housing, the second inner diameter of the second cross-section being less than the first inner diameter of the first cross-section; wherein the centerpoint of the first inner diameter of the first cross-section is offset from the centerpoint of the second inner diameter of the second cross-section by an offset amount measured in a direction generally parallel to the first longitudinal axis of the housing.