Cummins Emission Solutions Inc.

Enoch Nanduru

Ryan M Johnson

Samuel Johnson

Robert G Sperry

Vinay Kumar Joshi

Mahendra Mittapalli

Randolph G Zoran

John G Buechler

Jim L Alonzo

Mihai Chiruta

Karan Shaileshkumar Chinaiwala

Chetan Kishorrao Chawane

Kartiki Jagtap

Udit Bhaveshkumar Shah

Pradnya Chandrakant Joshi

Suraj D Khalate

Vaidyanadan Sundaram

David M Sarcona

George Eugene Mavroudis

Gaurav Hemant Pandit

Alex D Harrington

Allick Mounir Olive

Sriram Narayanasamy

Paul T Frisch

Isabel Valborg Montgomery

Aishwarya Pravin Joshi

Sagar Maruti Jarali

Narenthiran Thangamuthu

Ramesh Ramavath

Pradnya C Joshi

Guilherme Daldegan

A reductant delivery system includes an inlet body, an outlet body, and an outer transfer tube. The inlet body includes an inlet body coupler, an inlet body outer transfer shell, and an inlet body inner shell. The inlet body coupler surrounds an inlet body inlet that is configured to receive exhaust gas. The inlet body outer transfer shell is coupled to the inlet body coupler. The inlet body outer transfer shell includes an inlet body outer transfer shell inner surface and an inlet body outer transfer shell outlet. The inlet body outer transfer shell outlet extends through the inlet body outer transfer shell inner surface. The inlet body inner shell includes an inlet body inner shell first flange, an inlet body inner shell second flange, and an inlet body inner shell wall. The inlet body inner shell first flange is coupled to the inlet body outer transfer shell inner surface.

Reductant delivery system for exhaust gas aftertreatment system

A decomposition chamber for an exhaust aftertreatment system includes an inlet conduit centered on an inlet conduit axis and configured to receive exhaust, a decomposition conduit coupled to the inlet conduit, an endcap coupled to the decomposition conduit, and an injector coupled to the endcap and configured to provide reductant into the decomposition conduit along an injection axis. The decomposition chamber includes a guide swirl mixer coupled to at least one of the inlet conduit or the endcap. The guide swirl mixer includes a first portion disposed within the inlet conduit, and a second portion disposed within the decomposition conduit such that the inlet conduit axis extends through the second portion. The second portion extends at least partially around the injection axis.

Decomposition chamber with guide swirl mixer

An exhaust gas aftertreatment system includes a housing assembly and a reductant delivery system. The housing assembly includes an upstream housing, a first inlet tube, a second inlet tube, and a mixing housing. The first inlet tube is coupled to the upstream housing and configured to receive a first portion of exhaust gas from the upstream housing. The second inlet tube is coupled to the upstream housing and configured to receive a second portion of the exhaust gas from the upstream housing. The mixing housing is coupled to the first inlet tube and the second inlet tube. The mixing housing is configured to receive the first portion of the exhaust gas from the first inlet tube and receive the second portion of the exhaust gas from the second inlet tube. The mixing housing is separated from the upstream housing by the first inlet tube and the second inlet tube.

Exhaust gas aftertreatment systems

A decomposition chamber for an aftertreatment system includes: a body comprising: 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 an exhaust gas first portion from the inlet, an exhaust assist chamber in fluid communication with the inlet, the exhaust assist chamber configured to receive an exhaust gas second portion from the inlet, and a main flow chamber in fluid communication with the inlet, the main flow chamber configured to receive an exhaust gas third portion from the inlet, receive the exhaust gas first portion from the thermal management chamber, and receive the exhaust gas second portion from the exhaust assist chamber.

Decomposition chamber for aftertreatment systems

Exhaust gas aftertreatment system

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.

An exhaust aftertreatment assembly and method of manufacturing and operating an exhaust aftertreatment assembly. An exhaust aftertreatment assembly includes an aftertreatment housing and an inlet conduit coupled to the aftertreatment housing at an inlet port so as to transfer exhaust gas into the aftertreatment housing. An inlet chamber is positioned in the aftertreatment housing. The inlet chamber is fluidly coupled to the inlet port of the aftertreatment housing to receive the exhaust gas from the inlet conduit.

Compact side inlet and outlet exhaust aftertreatment system

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Pune, India

Enoch Nanduru