Filtering block with fins for filtering particles contained...

Details Filtering block with fins for filtering particles contained... Filtering block with fins for filtering particles contained...

F - Mech Eng,Light,Heat,Weapons

01

N

F01N 3/022 (2006.01)

Patent

CA 2577803

The invention concerns a block for filtering particles contained in an internal combustion engine exhaust gases, comprising overlapping assemblies of adjacent input channels (14e) and output channels (14s), the input and output channels being alternately arranged so as to form, in cross-section, a chequered pattern, the overall volume of said input channels (14e) being greater than that of said output channels (14s). The inventive filtering block is characterized in that at least one inner space (20e, 20s) of one channel (14e, 14s) comprises at least one inner fin (30).

Bloc pour la filtration des particules contenues dans les gaz d'échappement d'un moteur à combustion interne, comprenant des ensembles imbriqués de canaux d'entrée (14e) et de canaux de sortie (14s) adjacents, les canaux d'entrée et de sortie étant disposés en alternance de manière à former, en section, un motif en damier, le volume global desdits canaux d'entrée (14e) étant supérieur à celui desdits canaux de sortie (14s). Le bloc filtrant selon l'invention est remarquable en ce qu'au moins un espace intérieur (20e,20s) d'un canal (14e, 14s) comporte au moins une ailette interne (30).

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