Diesel exhaust filter system with electrical regeneration
AssigneeNV Bekaert SA
InventorsKoen Wastijn, Willy Marrecau, Geert Devooght
Life of this patent
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Abstract
A filter element comprises a pleated metal fiber fleece which is pleated according to pleating lines, providing an edge with pleat openings to be closed to make gas flowing through the metal fiber fleece. The filter element comprises at least two flanks, each of these flanks comprises a ceramic plate. The metal fiber fleece is mounted between the ceramic plates of both flanks, while flanks exercising a clamping force on the edges of the metal fiber fleece in a direction essentially parallel to the pleating lines, meanwhile closing the pleat openings.
Claims77
A filter element comprising a pleated metal fiber fleece pleated according to pleating lines, providing an edge with pleat openings to be closed to make gas flow through said metal fiber fleece, said filter element comprising at least two flanks wherein each of said flanks comprises a ceramic plate, said metal fiber fleece is mounted between the ceramic plates of both flanks, said flanks exercising a clamping force on edges of said metal fiber fleece in a direction essentially parallel to said pleating lines, said flanks closing said pleat openings, each of said ceramic plates being provided with a recess, said edges of said metal fiber fleece being sunken in said recesses, said edge being sunken over a height, said height being at least 10% less than the depth of said recesses.
A filter element comprising a pleated metal fiber fleece pleated according to pleating lines, providing an edge with pleat openings to be closed to make gas flow through said metal fiber fleece, said filter element comprising at least two flanks wherein each of said flanks comprises a ceramic plate, said metal fiber fleece is mounted between the ceramic plates of both flanks, said flanks exercising a clamping force on edges of said metal fiber fleece in a direction essentially parallel to said pleating lines, said flanks closing said pleat openings, each of said ceramic plates being provided with a recess, said edges of said metal fiber fleece being sunken in said recesses, a depth of said recesses being more than 0.5 mm, said depth of said recesses being less than 2 mm.
A filter element comprising a pleated metal fiber fleece pleated according to pleating lines, providing an edge with pleat openings to be closed to make gas flow through said metal fiber fleece, said filter element comprising at least two flanks wherein each of said flanks comprises a ceramic plate, said metal fiber fleece is mounted between the ceramic plates of both flanks, said flanks exercising a clamping force on edges of said metal fiber fleece in a direction essentially parallel to said pleating lines, said flanks closing said pleat openings, said edges of said metal fiber fleece being glued to said ceramic plates of said flanks using ceramic glue, said ceramic glue comprising short metal fibers.
A filter element comprising a pleated metal fiber fleece pleated according to pleating lines, providing an edge with pleat openings to be closed to make gas flow through said metal fiber fleece, said filter element comprising at least two flanks wherein each of said flanks comprises a ceramic plate, said metal fiber fleece is mounted between the ceramic plates of both flanks, said flanks exercising a clamping force on edges of said metal fiber fleece in a direction essentially parallel to said pleating lines, said flanks closing said pleat openings, each of said ceramic plates being provided with a recess, said recess corresponding to one of said edges of said metal fiber fleece, said edge of said metal fiber fleece being sunken in said recess to engage said recess.
Dependencies are inferred from the claim text.