Method for mobilising ash in an exhaust-gas particle filter

US10612437B2 · kind B2 · utility

Assignee

• MTU FRIEDRICHSHAFEN GMBH · DE

Inventors

• Klaus Rusch · Achberg, DE
• Raphael-David Leopold · Friedrichshafen, DE
• Hilmar Wolman · Überlingen, DE
• Günter Zitzler · Kreßbronn, DE
• Alexander Schneider · Munich, DE
• Tim Späder · Tettnang, DE
• Andrea Prospero · Tettnang, DE
• Norbert Markert · Markdorf, DE
• Michael Neuscheler · Friedrichshafen, DE
• Viktor Mantaj · Friedrichshafen, DE
• Michael Rauter · Kreßbronn, DE
• Boban Maletic · Friedrichshafen, DE
• John Scholz · Friedrichshafen, DE
• Daniel CHATTERJEE · Gettorf, DE

Key dates

• Filing date: Jun 2, 2016
• Grant date: Apr 7, 2020
• Expiry date: Oct 15, 2036

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T10/40
• WIPO field: Environmental technology
• WIPO sector: Chemistry

Abstract

A method for execution with an exhaust-gas particle filter which is operated with an exhaust-gas aftertreatment system, wherein the exhaust-gas particle filter has a filter wall along which exhaust gas is conducted for filtering purposes; wherein the method includes a regeneration phase with the steps: a) setting a soot load on the exhaust-gas particle filter, wherein the set soot load effects the formation of a soot layer on ash deposited on the filter wall; and b) subsequently mobilising the deposited ash by burning off the formed soot layer during the course of an active regeneration of the exhaust-gas particle filter.