Block for filtering particles contained in exhaust gases of...

Gas separation – Specific media material – Ceramic or sintered

Reexamination Certificate

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Details

C055S385300, C055S522000, C055S524000, C055S529000, C055SDIG030, C131S343000, C428S116000

Reexamination Certificate

active

08007556

ABSTRACT:
A block, particularly for filtering particulates present in the exhaust gases of an internal combustion engine, includes a plurality of flow channels for the gases (14e,14s), each of the channels (14e,14s) being bounded by a side wall (22), a plug (15e,15s) and an opening (19e,19s) terminating outwardly. The block according to the invention is remarkable in that a first portion (34) of the side wall (22) of at least one of the channels (14p,14p″), called the “reinforced channel”, includes a reinforcement compared to the rest of the side wall (22) forming a second portion (36) of the side wall (22), the ratio (R) of the thickness of the first portion (34) to the thickness of the second portion (36), in any transverse plane of section (P), being between 1.1 and 3.

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Webster's Third New International Dictionary, Unabridged, 1993.
JP Office Action dated Jan. 4, 2010 from corresponding JP2006546247.

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