The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 01, 2008
Filed:
Mar. 26, 2003
Marcus Pfeifer, Solingen, DE;
Barry Van Stetten, Rodenbach, DE;
Christian Kühn, Hasselroth, DE;
Roger Staab, Freigericht, DE;
Lutz Marc Ruwisch, Darnstadt, DE;
Peter Kattwinkel, Marienheide, DE;
Jürgen Geishoff, Biebergemünd, DE;
Egbert Lox, Hochwaldhausen, DE;
Thomas Kreuzer, Karben, DE;
Marcus Pfeifer, Solingen, DE;
Barry van Stetten, Rodenbach, DE;
Christian Kühn, Hasselroth, DE;
Roger Staab, Freigericht, DE;
Lutz Marc Ruwisch, Darnstadt, DE;
Peter Kattwinkel, Marienheide, DE;
Jürgen Geishoff, Biebergemünd, DE;
Egbert Lox, Hochwaldhausen, DE;
Thomas Kreuzer, Karben, DE;
Umicore AG & Co. KG, Hanau, DE;
Abstract
The present invention is directed to a particle filter to remove soot from the exhaust gas of a diesel engine. The particle filter contains a catalytically active coating on a filter body to accelerate bum-off during a regeneration phase of the soot particles collected on the filter. The particle filter comprises a catalytic coating containing compounds of barium, compounds of magnesium, and at least one element of the platinum group metals. The invention is further directed to a process for accelerated combustion of soot particles collected on the filter from lean exhaust gas of a diesel engine in which the soot particles have a soot ignition temperature and the particle filter is actively regenerated from time to time by raising the temperature of the particle filter above the soot ignition temperature and burning off the soot particles.