Patent · US Active

Catalytically active particulate filter

US12343713B2 · kind B2 · utility

0Cited by

7References

12Claims

0Family size

Assignee

UMICORE AG & CO. KG · DE

Inventors

Jan Schoenhaber · Darmstadt, DE
Naina Deibel · Pfungstadt, DE
Martin Roesch · Rodgau, DE
Joerg-Michael Richter · Scheinfeld, DE

Key dates

Filing date	Mar 29, 2019
Grant date	Jul 1, 2025
Priority date	—
Expiry date	May 28, 2041

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF01N2510/068
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

The invention relates to a particulate filter which comprises a wall flow filter of length L and two different catalytically active coatings Y and Z, wherein the wall flow filter comprises channels E and A that extend in parallel between a first and a second end of the wall flow filter and are separated by porous walls which form surfaces OE and OA, respectively, and the channels E are closed at the second end and the channels A are closed at the first end. The invention is characterised in that the coating Y is located in the channels E on the surfaces OE and the coating Z is located in the channels A on the surfaces OA.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.