Particulate filter for filtering soot particles from exhaust gas delivered by exhaust system of motor vehicle, has coherent, thin membrane attached on filter walls, and including catalytically active and/or gas storing components
The filter (10) has filter walls (18) limiting channels (20) from each other and including pores through which exhaust gas flows. A coherent, thin membrane (28) is attached on the filter walls and covers the pores. The membrane includes catalytically active and/or gas storing components. Penetration...
Gespeichert in:
Hauptverfasser: | , |
---|---|
Format: | Patent |
Sprache: | eng ; ger |
Schlagworte: | |
Online-Zugang: | Volltext bestellen |
Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
Zusammenfassung: | The filter (10) has filter walls (18) limiting channels (20) from each other and including pores through which exhaust gas flows. A coherent, thin membrane (28) is attached on the filter walls and covers the pores. The membrane includes catalytically active and/or gas storing components. Penetration of soot particles (30) into the filter walls is prevented by the membrane. The filter has a thickness ranging from 10 micrometers to 20 micrometers, a porosity of 50 percentage and a pore size ranging from 1 micrometer to 5 micrometers.
Die Erfindung betrifft einen Partikelfilter (10) für eine Abgasanlage eines Kraftwagens, mit Filterwänden (18), welche eine Mehrzahl von Kanälen (20) voneinander abgrenzen. Die Filterwände (18) weisen von Abgas durchströmbare Poren auf. Auf wenigstens eine Filterwand (18) ist zumindest bereichsweise ein die Poren abdeckender Oberflächenfilter (28) aufgebracht, welcher eine katalytisch wirksame und/oder gasspeicherende Komponente aufweist. |
---|