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US 2019/0211731 A1Published application
Catalyst substrates
AssigneeBASF SE
InventorsJianjun He, Shuiping Deng, Gengsheng Chu, Mike Galligan, Ye Liu
Life of this patent
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Abstract
Provided are metal foil matrices formed of corrugated metal foil with oblique angles. The metal foil matrices are capable of providing turbulent gas flow there through. The matrices may contain a catalytic coating. The matrices may be employed in a catalytic converter for treatment of exhaust gas emissions of an internal combustion engine.
Claims15
1-14. (canceled)
A metal foil matrix comprising a plurality of metal foil layers each having oblique angle corrugation.
A method of producing a catalyst substrate, the method comprising:
- (a) providing a metal foil strip with oblique angle corrugation;
- (b) winding, coiling, or folding the metal foil strip to form a matrix comprising a plurality of metal foil layers;
- (c) inserting the matrix into a jacket tube;
- and
- (d) joining a periphery of the matrix to the jacket tube interior.
2 more elements
Dependencies are inferred from the claim text.