Diesel particulate filter comprising a finely dispersed diesel particulate catalyst

US7666376B2 · kind B2 · utility

Assignee

• Forschungszentrum Jülich GmbH · DE

Inventors

• Jürgen Dornseiffer · Aachen, DE
• Helmut Hackfort
• Edgar V. Hünnekes · Wunstorf, DE

Key dates

• Filing date: Jun 20, 2002
• Grant date: Feb 23, 2010
• Expiry date: Oct 3, 2024

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F01N2510/065
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

The invention relates to a device for the, (in particular continuous), oxidation of particulates from the exhaust gases of diesel motors. Said device consists of an open-pored body as a particle filter, on whose surface an oxidation catalyst is finely dispersed. The device is characterized in that from an exhaust gas temperature as low as 150° C., the catalyst causes the oxidation of particulates attached to the filter using the residual oxygen of the exhaust gas, thus keeping the filter body continuously free of particulates during almost all the operating conditions of the motor.