Arrangement for the removal of soot particles from the exhaust gas stream of a diesel internal combustion engine

US4852349A · kind A · utility

Assignee

• Daimler-Benz AG · DE

Inventors

• Joerb Abthoff · Schorndorf, DE
• Hans-Dieter Schuster · Schorndorf, DE
• Hans-Joachim Langer · Waiblingen, DE
• Erwin Strohmer · Winnenden, DE
• Rolf Gabler · Waiblingen, DE
• Roland Schulte · Bad Marienberg, DE

Key dates

• Filing date: Mar 31, 1988
• Grant date: Aug 1, 1989
• Expiry date: Mar 31, 2008

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S55/30
• WIPO field: Environmental technology
• WIPO sector: Chemistry

Abstract

An arrangement for removing soot particles from the exhaust stream of a diesel internal combustion engine in such a manner that the soot particles are caught between conductor elements disposed at different potential, produce a short circuit and thereby burn off. In order to be able to realize a purification of the exhaust gas stream without a significant increase of the exhaust gas counterpressure, a centrifugal separator is connected to the exhaust gas line, which passes over into a soot particle collecting chamber constructed axially symmetrical to the longitudinal axis thereof; a predetermined number of electrodes is arranged in turn in the soot particle collecting chamber at a slight distance to the casing interior surface whereby the electrodes among one another or the electrodes and the soot particle collecting chamber itself are at a different potential.