Mixing arrangement for an exhaust-gas system of an internal combustion engine

US12345194B2 · kind B2 · utility

Assignee

• Purem GmbH · DE

Inventors

• Philipp Weinmann · Eßlingen, DE
• Heike Többen · Uhingen, DE
• Mathias Rothfuss · Waiblingen, DE

Key dates

• Filing date: Aug 24, 2023
• Grant date: Jul 1, 2025
• Expiry date: Aug 24, 2043

Classification

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

Abstract

A mixing arrangement for an exhaust-gas system of an internal combustion engine for mixing exhaust gas and reactant includes an exhaust-gas guiding component which delimits an exhaust-gas flow volume and which extends in the direction of a longitudinal axis, a reactant dispensing unit for dispensing reactant into the exhaust-gas flow volume, downstream of the reactant dispensing unit an exhaust-gas flow volume dividing arrangement, the exhaust-gas flow volume dividing arrangement dividing the exhaust-gas flow volume in a dividing length region into a plurality of partial exhaust-gas flow volumes, the plurality of partial exhaust-gas flow volumes including a central partial exhaust-gas flow volume and at least one partial exhaust-gas flow volume which surrounds the central partial exhaust-gas flow volume in a ring-like manner.