DEVICE FOR CATALYTIC DETOXIFICATION OR DGL. OF COMBUSTION ENGINE EXHAUST GASES WITH TWO EXHAUST TREATMENT BODIES AND A PROTECTIVE RING BETWEEN

摘要

Apparatus for catalytic purification of or removal of particulates from exhaust gases of internal combustion engines, having a housing (2), which has two open end regions (4) connected to an exhaust pipe (6) and a throughflow passage for the exhaust gas between the end regions (4), having two exhaust gas treating bodies (8), which are mounted in series in the housing (2) in the direction of flow, at a mutual spacing, and through which the gas can flow, and having a rigid protection ring (12) composed of ceramic material which encircles the clearance space between the two exhaust gas treating bodies (8). The protection ring (12) is held positively in the housing (2) in the axial direction by means of a holding element (10) which surrounds it on the outside, an axial gap (24) existing between the protection ring (12) and at least one of the two exhaust gas treating bodies (8) in the installed state. …IMAGE…