Method for producing an annular honeycomb body, and annular honeycomb body
AssigneeEMITEC Gesellschaft fuer Emissionstechnologie mbH
InventorsNaroa Zaldua-Moreno, Ferdi Kurth, Rolf Brück
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Abstract
A method for producing a honeycomb body includes providing an annular radial partial region with channels through which a fluid can flow. The honeycomb body is formed from at least one metallic layer fastened at least at one fastening point to an outer casing tube. Each metallic layer has alternating substantially smooth and structured sections folded onto one another. A honeycomb body is also provided. The method and the honeycomb body advantageously permit an annular honeycomb body with low material expenditure and good durability to be produced.
Claims21
A honeycomb body, comprising:
- an outer casing tube;
- one single metallic layer fastened at least at one fastening point to said outer casing tube, said metallic layer having substantially smooth and structured sections separated from each other by fold lines and folded onto one another, said substantially smooth sections between said fold lines having at least one first section length, said structured sections between said fold lines having at least one second section length differing from said first section length, said sections each having a substantially involute curvature;
- and
- an annular radial partial region with channels through which a fluid can flow.
A method for producing a honeycomb body, the method comprising the following steps:
- providing one single metallic layer with substantially smooth and structured sections separated from each other by fold lines;
- providing the substantially smooth sections between the fold lines with at least one first section length and providing the structured sections between the fold lines with at least one second section length differing from the first section length;
- providing each of the sections with a substantially involute curvature;
- folding the sections of the metallic layer onto one another;
- fastening the metallic layer at least at one fastening point to an outer casing tube;
- and
- forming the honeycomb body from the metallic layer with an annular radial partial region having channels through which a fluid can flow.
Dependencies are inferred from the claim text.