Apparatus and method for an exhaust aftertreatment device

摘要

An internally insulated exhaust aftertreatment device with a converter body (10), an end cone assembly (20) and sealing device (30) inserted in an annular area between the external shell (12) and the substrate (16) of the converter body (10). The sealing device (30) is sealingly engaged between an inner end cone (24) and the insulating material (14). The sealing device (30) comprises a wire-mesh ring-shaped device conformable to the annulus between the substrate (16) and the shell (12), and may have a substantially round cross-sectional area, a C-shaped cross-sectional area, or an L-shaped cross-sectional area.