Decomposition chamber for aftertreatment systems

US11300030B2 · kind B2 · utility

Assignee

• Cummins Emission Solutions Inc. · US

Inventors

• Samuel Johnson · Bloomington, US
• Ryan M. Johnson · Cottage Grove, US
• Kartiki Jagtap · Phaltan, IN
• Enoch Nanduru · Pune, IN
• Mahendra Mittapalli · Mancherial, IN
• Udit Bhaveshkumar Shah · Gandhinagar, IN
• Suraj D. Khalate · Pune, IN
• Pradnya Chandrakant Joshi · Ahmednagar, IN
• Vinay Kumar Joshi · Pune, IN
• Vaidyanadan Sundaram · Columbus, US

Key dates

• Filing date: Aug 14, 2018
• Grant date: Apr 12, 2022
• Expiry date: Jan 6, 2040

Classification

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

Abstract

A decomposition chamber for an aftertreatment system includes: a body including: an inlet configured to receive exhaust gas; an outlet configured to expel the exhaust gas, a thermal management chamber in fluid communication with the inlet, the thermal management chamber configured to receive a first portion of the exhaust gas from the inlet, and a main flow chamber in fluid communication with the inlet, the main flow chamber configured to receive a second portion of the exhaust gas from the inlet and to receive the first portion of the exhaust gas from the thermal management chamber; and a diffuser positioned within the main flow chamber, the diffuser including: a diffuser inlet portion including a plurality of diffuser perforations, the diffuser inlet portion configured to receive the exhaust gas from the main flow chamber, and a diffuser flange portion configured to receive the exhaust gas from the diffuser inlet portion and provide the exhaust gas to the outlet.