Mixer assembly unit

US11484847B2 · kind B2 · utility

Assignee

• Purem GmbH · DE

Inventors

• Michael Mayer · Bempflingen, DE
• Heike Többen · Uhingen, DE
• Christoph Illi · Baltmannsweiler, DE
• Wolfgang Datz · Tübingen, DE
• Konstantin Kappes · Stuttgart, DE
• Tobias Wolf · Sandkrug, DE
• Philipp Weinmann · Eßlingen, DE

Key dates

• Filing date: Mar 31, 2021
• Grant date: Nov 1, 2022
• Expiry date: Mar 31, 2041

Classification

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

Abstract

A mixer assembly unit, for an exhaust system exhaust gas treatment unit of an internal combustion engine, mixes exhaust gas discharged by the internal combustion engine with reactant. A mixing section (12), downstream in relation to a reactant release device (14), mixes exhaust gas, flowing in an exhaust gas flow direction, with reactant. The mixing section includes a core flow duct (34), extending in a direction of a mixing section longitudinal axis (L), through which a first exhaust gas partial stream (T1) flows. A second exhaust gas partial stream (T2) flows through a jacket flow duct (36) surrounding the core flow duct and separated from the core flow duct by an inner wall (30). The reactant release device releases reactant into the core flow duct or/and into the first exhaust gas partial stream. A mixer (38) is provided at an upstream end area (22) of the mixing section.