Saint-gobain Centre De Recherches Et D'etudes Europeen

Anthony Briot

Vincent Gleize

Sébastien Bardon

Gaëtan Champagne

Sebastien Remi Bardon

Matteo Scalabrino

Nicolas Bonnail

Patricia Andy

Christophe Carrie

Carine Barataud-Dien

Sébastien Saint-Gobain Bardon

Jointing cement intended in particular for fastening together a plurality of filter blocks of a filtering body of an exhaust gas particle filter of an internal combustion engine of a motor vehicle, having a silicon carbide (SiC) content of between 30% and 90%. The cement according to the invention includes at least 0.05% and less than 5% of a thermosetting resin, the percentages being percentages by weight relative to the total weight of the thermosetting resin and the mineral material, apart from the possible water.

Cement for particle filter

Jointing cement intended in particular for fastening together a plurality of filter blocks of a filtering body for filtering exhaust gas particles of an internal combustion engine of a motor vehicle, the cement including, in percentages by weight relative to the weight of the mineral material, apart from possible water and a possible mineral resin,

Jointing cement containing hollow spheres, for a particle filter

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 (14,14), each of the channels (14,14) being bounded by a side wall (), a plug (15,15) and an opening (19,19) terminating outwardly. The block according to the invention is remarkable in that a first portion () of the side wall () of at least one of the channels (14,14&#x2033;), called the 'reinforced channel', includes a reinforcement compared to the rest of the side wall () forming a second portion () of the side wall (), the ratio (R) of the thickness of the first portion () to the thickness of the second portion (), in any transverse plane of section (P), being between 1.1 and 3.

Block for filtering particles contained in exhaust gases of an internal combustion engine

The invention relates to a honeycomb structure, made from a porous ceramic material, said structure being characterized in that the porous ceramic material which forms it comprises: from 50 to 95% by weight of silicon carbide SiC; from 5 to 50% by weight of at least one ceramic oxide phase, said structure additionally being characterized by a porosity greater than 10%, by a specific surface area greater than 0.5 m/g and by a pore size distribution of at least bimodal type. The invention also relates to the process for obtaining such a structure and also to the catalytic support or filter obtained from such a structure, after deposition of a catalyst.

High specific surface silicon carbide catalytic filter and support

A filter block, particularly for filtering particulates present in the exhaust gases of an internal combustion engine, including peripheral inlet () and outlet () channels arranged alternately at the periphery of the block and each including an external wall () exposed to the exterior of the block and an internal wall () arranged inside the block. The block according to the invention is remarkable in that it includes at least one group (G) of two adjacent peripheral channels () such that, in a transverse plane of section (P), the ratio R of the average thickness 'E' of all the external walls () of the group (G) to the average thickness 'e' of all the internal walls () of the (G) is greater than 1.2.

This structure () comprises first and second filtering elements (A,B) extending essentially parallel to a longitudinal axis (X-X') of the structure () between an admission region () of the gases into the structure () and an evacuation region () of the gases from the structure, and comprises a seal () for joining these elements (A,B). The seal () comprises at least one downstream pat () which has a thermal mass per unit length greater than the thermal mass per unit length of an upstream part () of the seal (). The invention is for use in particulate filters for the exhaust gases of a motor vehicle diesel engine.

Structure for filtering exhaust gases of an internal combustion engine, and associated exhaust line

This structure comprises first and second filtering elements (A,B) which are respectively provided with a first and a second face (A,B) arranged opposite each other and a seal () connecting said faces (A,B). The first face (A) comprises at least a first region (A) that does not adhere, or only slightly adheres to said seal (), opposite a first region (B) that strongly adheres to said seal () of the second face (B). The first region (A) that does not adhere or only slightly adheres is delimited by at least a portion of the edge () common to the first face (A) and a discharge face (). The first region (A) that does not adhere or only slightly adheres comprises a side (A) that diverges towards the discharge face () and which extends up to said common edge ().

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Avignon, France

Anthony Briot