Exhaust gas treatment device

摘要

The device (1) has an outlet funnel (7) including an outer funnel (8) and an inner funnel (9). An inner end of the outer funnel is connected with a jacket (6) in a fixed manner while an outer end is connected with the inner funnel. An insulation space (14) is formed between external and internal funnels (12, 13). The space covers the inner funnel in a circumferential direction. An inner end of the inner funnel bears against the inner end of the outer funnel. A support ring (15) is supported at the inner end of the inner funnel that is axially loose relative to the outer funnel.