Method and apparatus for continuously removing nitrogen oxides in exhaust gases of internal combustion engines

US5782085A · kind A · utility

Assignee

• Dornier GmbH · DE

Inventors

• Jürgen Steinwandel · Überlingen, DE
• Jorg Hoschele · Friedrichshafen, DE
• Martin Stoer · Markdorf, DE
• Rainer Willneff · Markdorf, DE
• Theodor Staneff · Bermatingen, DE

Key dates

• Filing date: Apr 8, 1996
• Grant date: Jul 21, 1998
• Expiry date: Apr 8, 2016

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F01N2240/28
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

The invention relates to a method for continuously removing nitrogen oxides in exhaust gases of internal combustion engines containing an excess of oxygen by feeding a reactive nitrogen-containing plasma jet into the exhaust gas stream, wherein the plasma jet is generated by electromagnetic high-frequency fields.