| 摘要 |
The invention concerns a filtering body (7) consisting of a plurality of adjacent channels through the walls of which said exhaust gases are filtered . It comprises first (12 to 23) and second (8 to 11) filtering zones, the surface filtering the gases, relative to the unit area of the gas intake of said body (7), being different in the first (12 to 23) and second (8 to 11) zones. The invention is applicable to a diesel engine.
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