Filtering medium for the exhaust gas filtration device of a diesel engine, filtration device implementing such medium, and exhaust gas line of an internal combustion engine implementing such device

An internal combustion engine exhaust line, including at least one inlet for gases produced by internal combustion, at least one filtration device for trapping solid particles contained in exhaust gases of said engine and at least one atmospheric exhaust port for said gases located downstream from said filtration device,

• wherein the filtration device includes at least one catalysis means and filtration means for filtration of said exhaust gases within a reaction chamber located in a trajectory of exhaust gas flow, said filtration means comprising a plurality of filtering units including a filtering medium, said units being separated from each other by a ceramic mat or cloth coated on two faces, intended to come into contact with said filtering units, with a ceramic glue, in order to secure the units to each other while keeping the units mechanically and thermally independent, and the units are inserted into a structure, and secured to the structure by a holder made of a ceramic mat or cloth coated with a ceramic glue, the filtering units being additionally each associated with an electrical heating resistance, placed adjacent to a unit, or integrated within the unit;
• and wherein said line includes clacks or valves to isolate a part of the filtration device by stopping the exhaust gas flows reaching the part.