System and Method for Accommodating Aftertreatment Bricks

摘要

An aftertreatment system and method treats exhaust gasses produced by an internal combustion process or a similar process. The aftertreatment system includes an aftertreatment module having a sleeve extending between a first end and a second end. One or more aftertreatment bricks are axially inserted into a sleeve opening disposed in the first end of the sleeve. To prevent the aftertreatment bricks from unintentionally exiting the sleeve, a captive ring is disposed around the first end of the sleeve as a loose fitting collar. The captive ring is restrained on the sleeve by a circumferential bead protruding about the first end. The captive ring can couple with a retention ring placed adjacent the first end. When coupled to the captive ring, a portion of the retention ring extends partially across and blocks the sleeve opening, preventing the aftertreatment brick from exiting the sleeve.

主权项

1. An aftertreatment module comprising:
at least one sleeve extending between a first end and an opposing second end along a sleeve axis, the at least one sleeve including a sleeve opening at the first end and a bead proximate the first end protruding radially outward about the sleeve axis; a frame including a planar surface perpendicular to the sleeve axis, the frame accommodating the at least one sleeve such that the first end extends from the planar surface and the bead is axially spaced from the planar surface; one or more aftertreatment bricks inserted in the at least one sleeve, each of the aftertreatment bricks including a substrate matrix and a mantle disposed around the substrate matrix; a captive ring disposed around the sleeve and axially positioned between the planar surface and the bead; and a retention ring disposed adjacent the first end and coupled with the captive ring, the retention ring shaped such that a portion of the retention ring is disposed over a portion of the sleeve opening.