EXHAUST-GAS AFTERTREATMENT DEVICE AND ASSOCIATED PRODUCTION METHOD

摘要

A method for producing an exhaust-gas aftertreatment device (2) inserts a monolith (8) in a housing (4), assembled from a circumferentially enclosed jacket (5) and two end funnels. The monolith (8) is axially inserted into the jacket (5) with a circumferentially enclosing support mat (9). The funnels (6) are connected to the jacket (5) via an axial connecting section (10) shaped complementary to the cross-section of the jacket (5), such that each connecting section (10) and an axial end section (25) of the support mat (9) axially overlap. The jacket (5), including the connecting sections (10) of the funnels (6) from a starting cross-section (13) to an end cross-section (15). This produces a predetermined radial preload in the support mat (9) in a support area (16) extending from the one connecting section (10) to the other connecting section (10) to retain the monolith (8) in the jacket (5).