Abstract: The present invention relates to a structure, for filtering particulate-laden gases, of the honeycomb type and containing an assembly of adjacent ducts or channels, whose axes are parallel to one another, separated by porous walls, the ducts being sealed off by plugs at one or other of their ends so as to form inlet chambers opening onto a gas entry face and outlet chambers opening onto a gas exit face, in such a way that the gas to be filtered passes through the porous walls, wherein said walls comprise material based on silicon carbide and the walls have an open porosity of between 30 and 53%; a median pore diameter of between 9 and 20 ?m; the average number of open pores on the surface of the walls, the opening area of which is between 20 and 310 ?m2, is greater than 300 per mm2 of wall; and the ratio of the total opening area of said open pores to said area of the walls is between 0.15 and 0.30.

Abstract: An assembled ceramic body having blocks attached to one another by means of a seal, the lateral surface of the ceramic body possibly being coated with a peripheral coating, the seal and/or the peripheral coating including a set cement having less than 10% of inorganic fibers, as a percentage by weight based on the dry mineral matter, in a section plane perpendicular to at least one of the facing faces of the blocks assembled by said seal, having macropores with an equivalent diameter in the range 200 ?m to 40 mm in a quantity such that the total surface area in said section plane occupied by said macropores represents more than 15% and less than 80% of the total surface area observed.

Abstract: The invention relates to a method for the calibration and/or management of an exhaust line of a motor vehicle comprising a particle filter (X), said method comprising an initial step of measuring, over a representative population of the filter, the increase in the loss of load generated by a limited load of soot particles present in a filter, that is the threshold for the triggering of a filter regeneration phase; a step of measuring, in the absence of soot particles, the loss of specific load of the filter (X); and a step of determining, on the basis of the values obtained in steps a) and b), a limited value for the loss of load, that is the threshold for the triggering of a regeneration phase. The invention also relates to a system for managing an exhaust line comprising means for implementing said method.

Abstract: Said structure comprises first and second filtering elements (15A, 15B) respectively comprising a first and second lateral surface (24A, 24B) disposed opposite each other. A joint (17) linking said surfaces (24A, 24B) extends between the surfaces (24A, 24B). The first lateral surface (24A) comprises, in the upstream part (36A), a first region (35C) of low or zero adherence with the joint (17), said region being defined longitudinally upstream by an upstream region (33A) of high adherence with said joint (17). The upstream region (33A) of high adherence is longitudinally defined upstream by a second region (35A) of low or zero adherence with the joint (17). Application: particle filters for the exhaust gases of an engine.

Abstract: Structure for filtering particulate-laden gases, of the honeycomb type, which is characterized in that the material based on silicon carbide constituting its walls has an open porosity of between 30 and 53%, a median pore diameter between 9 and 20 ?m, an average number of open pores on the surface of the walls, the equivalent opening area of which is between 20 and 310 ?m2, is greater than 300 per mm2 of wall and a ratio of the total opening area of said open pores to said surface of the walls between 15 and 30%.