Mixing plate providing reductant distribution

US9174167B2 · kind B2 · utility

Assignee

• International Engine Intellectual Property Company, LLC · US

Inventors

• Jeffrey R. Kelso · Fort Wayne, US
• Jason B. Arriaga · Wheaton, US
• Gregory A. Griffin · Glendale Heights, US
• Timothy Yoon · Northbrook, US
• Adam C. Lack · Hickory Hills, US
• Navtej Singh · Arlington Heights, US
• Ryan Andrew Wacker · Marengo, US
• Prasanna Nagabushan-Venkatesh · Lombard, US

Key dates

• Filing date: Apr 12, 2012
• Grant date: Nov 3, 2015
• Expiry date: Apr 12, 2032

Classification

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

Abstract

A reductant mixing system having injector and mixing plate positioned within mixing canister is disclosed. Injector discharges reductant directly into vehicle exhaust gases. Mixing plate effects turbulence to mix gases for NO reduction. Mixing plate includes plurality of arms each having surface area and extending from center of plate, barrier region defined by collective surface areas of arms and substantially centered for diverting fluid flow outward, and first and second cut-outs, which allow the gases diverted by barrier region to pass mixing plate into adjacent canister of exhaust treatment system. Each of the first cutouts is defined by outer edge between adjacent arms, and second tier of cut-outs defined by inner edge proximate end of each arm.