Mixer arrangement and method for operating a mixer arrangement

US11738313B2 · kind B2 · utility

Assignee

• Tenneco GmbH · DE

Inventors

• Eric A. Hein · Neustadt an der Weinstraße, DE
• Yannick Leske · Edenkoben, DE
• Anna Menges · Edenkoben, DE
• Günter Palmer · Neustadt, DE

Key dates

• Filing date: Mar 9, 2021
• Grant date: Aug 29, 2023
• Expiry date: Mar 9, 2041

Classification

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

Abstract

A mixer arrangement for an exhaust gas system, having an inlet opening through which an exhaust gas mass flow (A) can be guided, and a mixer for swirling the exhaust gas, which has at least one inflow opening that is fluidically connected to the inlet opening, wherein at least one first portion (A1) of the exhaust gas mass flow (A) can be guided through the mixer via the at least one inflow opening, an injection device by means of which an additive can be injected, and a bypass having at least one throughflow opening which is fluidically connected to the inlet opening and through which a second portion (A2) of the exhaust gas mass flow (A) can be guided past the mixer, there being provided at least one regulating body by means of which a flow cross-section Q in the mixer arrangement can be varied such that a ratio V with (formula I) can be varied.