B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
B01D 46/12 (2006.01) F01N 3/02 (2006.01) F01N 3/022 (2006.01) F01N 3/023 (2006.01) F01N 3/027 (2006.01) F01N 13/04 (2010.01)
Patent
CA 2469250
The invention concerns a filtering body (3), in particular for a motor vehicle internal combustion engine exhaust gas particulate filter (1), comprising a plurality of filtering units (11a-11i) assembled by at least a joint (12) interposed between the filtering units (11a-11i) and configured so as to counter the passage of exhaust gases between the filtering units (11a-11i). Said filtering body is characterized in that the joint (12) comprises a plurality of joint portions (12a-12e) locally adapted to optimize the attenuation of thermomechanical stresses liable to be generated in the filtering body (3).
L'invention concerne un corps filtrant (3), notamment pour un filtre à particules (1) de gaz d'échappement d'un moteur à combustion interne d'un véhicule automobile, comportant une pluralité de blocs filtrants (11a-11i) solidarisés au moyen d'au moins un joint (12) intercalé entre les blocs filtrants (11a-11i) et conformé de manière à s'opposer au passage des gaz d'échappement entre les blocs filtrants (11a-11i). Ce corps filtrant est remarquable en ce que le joint (12) comporte une pluralité de portions de joint (12a-12e) adaptées localement de manière à optimiser l'affaiblissement des contraintes thermo-mécaniques susceptibles d'être générées dans le corps filtrant (3).
Bardon Sebastien Remi
Gleize Vincent Marc
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
Saint-Gobain Centre de Recherches Et D'etudes Europeen
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