Catalytic converter device with injection section

US9938878B2 · kind B2 · utility

Assignee

• Eberspächer Exhaust Technology GmbH · DE

Inventors

• Hervé Ferront · Eßlingen, DE
• Laurent Cazeneuve · Maurepas, FR
• Heike Többen · Uhingen, DE
• Sophie Rilly · Issy-les-Moulineaux, FR
• Tobias Wolf · Sandkrug, DE
• Sophie Kermorvant · Massy, FR

Key dates

• Filing date: Oct 21, 2014
• Grant date: Apr 10, 2018
• Expiry date: Jul 4, 2036

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T137/87571
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

An injection section (12) of an exhaust system for an internal combustion engine, with a channel (13) for guiding an exhaust gas flow (3), with an injection port (14), laterally on the channel to which a liquid or gas injector (15) can be connected, and with an injection chamber (16), formed in the channel in the area of the injector port. The chamber is defined by a perforated, first flow through partition (17), arranged in the channel upstream of the injector port relative to the exhaust gas flow and, and by a perforated, second flow through partition, arranged in the channel downstream of the injector port relative to the exhaust gas flow. Improved mixing and/or evaporation is achieved with the perforation portion of the first partition generating at least two partial exhaust gas flows (20, 21), which form two mutually opposite flow swirls (22, 23).