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US 11,359,533 B2Granted
Catalytic converter and method for the production thereof
AssigneeVitesco Technologies GmbH
InventorsSebastian Dung, Peter Hirth, Sven Schepers
Life of this patent
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Abstract
A catalytic converter for exhaust gas aftertreatment, with a matrix and a casing, the matrix is formed from a coiled layered stack of metal sheets and is inserted into the casing and bonded thereto only in portions and a method for producing a catalytic converter.
Claims14
A catalytic converter for exhaust gas aftertreatment, comprising:
- a casing having a plurality of individual protrusions directed radially inwardly that are spaced apart from one another in an axial direction and a circumferential direction;
- and
- a matrix formed from a coiled layered stack of metal sheets, wherein the matrix is inserted into the casing and bonded to the casing only in portions,
- wherein a flow path is created around each of the plurality of individual protrusions, the flow path defined by the casing and a radially outer portion of the matrix.
1 more element
A method for production of a catalytic converter, comprising:
- (a) producing a matrix by stacking at least two metallic layers onto each other and coiling the at least two metallic layers;
- (b) applying an adhesive to a casing using a gluing roller and applying solder to a plurality of individual radially inwardly pointing protrusions that are spaced apart from one another in an axial direction and a circumferential direction of the casing;
- (c) inserting the matrix into the casing;
- and
- (d) soldering the matrix to the casing using the applied solder;
- wherein the gluing roller has elevations on its radially outwardly pointing face via which the gluing roller rolls on the radially inwardly pointing face of the casing,
- wherein the adhesive is applied to the casing according to an arrangement of the elevations,
- wherein a flow path is created around each of the plurality of individual radially inwardly pointing protrusions, the flow path defined by the casing and a radially outer portion of the matrix.
5 more elements
Dependencies are inferred from the claim text.