Single module integrated aftertreatment module

US11141696B2 · kind B2 · utility

Assignee

• Cummins Emission Solutions Inc. · US

Inventors

• Randolph G. Zoran · McFarland, US
• Ryan M. Johnson · Cottage Grove, US
• David M. Sarcona · Warren, US
• A. Carl McDonald · Greenwood, US
• Kenneth R. Federle · Columbus, US
• John G. Buechler · Indianapolis, US
• Scott Lubenow · Fitchburg, US
• Arvind V. Harinath · Columbus, US

Key dates

• Filing date: Aug 20, 2020
• Grant date: Oct 12, 2021
• Expiry date: Aug 20, 2040

Classification

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

Abstract

A selective catalytic reduction system may include a single housing defining a single centerline axis. The selective catalytic reduction system may also include a diesel particulate filter disposed within the single housing and having a DPF center axis aligned with the single centerline axis. The selective catalytic reduction system may also include an SCR catalyst disposed within the single housing and having a center axis aligned with the single centerline axis. In some implementations, the diesel particulate filter may include one or more SiC filters. In some implementations, the SCR catalyst may include one or more extruded SCR catalysts.