Mixer assembly

US12158096B2 · kind B2 · utility

Assignee

• Tenneco GmbH · DE

Inventors

• Sascha Haverkamp · Jockgrim, DE
• Joachim Gehrlein · Rheinzabern, DE
• Stefan Kohrs · Hamburg, DE
• Eric A. Hein · Neustadt an der Weinstraße, DE
• Attila Kovacs · Veszprém, HU

Key dates

• Filing date: Jun 2, 2023
• Grant date: Dec 3, 2024
• Expiry date: Jun 2, 2043

Classification

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

Abstract

A mixer assembly comprises a tubular housing including an exhaust gas inlet, an exhaust gas outlet, and a reductant inlet on a side of the tubular housing. An upstream mixing element is positioned within the tubular housing upstream from the reductant inlet. A downstream mixing element is positioned within the tubular housing downstream from the reductant inlet and the upstream mixing element. The upstream and downstream mixing elements at least partially define a reductant receiving mixing chamber in which the injected reductant and exhaust gas mix. A divider is positioned within the tubular housing downstream from the upstream mixing element to split the exhaust into two divided flow streams prior to exiting through the exhaust gas outlet.