NO.sub.x reduction system with a device for metering reducing agents

US6082102A · kind A · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Gerhard Wissler · Geiselhöring, DE
• Gunther Pajonk · Zapfendorf, DE
• Lothar Hofmann · Burgkunstadt, DE
• Manfred Weigl · Viehhausen, DE
• Wieland Mathes · Aichach, DE
• Ronald Neufert · Aichach, DE
• Klaus Wenzlawski · Wendelstein, DE
• Dietmar Weisensel · Sinzing, DE

Key dates

• Filing date: Sep 25, 1998
• Grant date: Jul 4, 2000
• Expiry date: Sep 25, 2018

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T10/12
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A NO.sub.x reduction system includes an SCR catalytic converter and a metering assembly for reducing agent. A control unit for the reduction system is integrated together with the actuators and sensors as a functional unit at the reducing agent container. This provides savings in terms of lines and plug-in connections, and relieves the burden on the control unit of the internal combustion engine.