Reductant injection and mixing system

Title: Reductant injection and mixing system

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Abstract

A gaseous reductant injection and mixing system is described herein. The system includes an injector for injecting a gaseous reductant into an exhaust gas stream, and a mixer attached to a surface of the injector. The injector includes a plurality of apertures through which the gaseous reductant is injected into an exhaust gas stream. The mixer includes a plurality of fluid deflecting elements.

Inventors:: Reeves, Matt; Henry, Cary A.; Ruth, Michael J.

Issue Date:: 2016-02-16

Research Org.:: Cummins IP, Inc., Columbus, IN (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1240415

Patent Number(s):: 9260994

Application Number:: 14/010,384

Assignee:: Cummins IP, Inc. (Columbus, IN)

Patent Classifications (CPCs):: F - MECHANICAL ENGINEERING F01 - MACHINES OR ENGINES IN GENERAL F01N - GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02T - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION

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F - MECHANICAL ENGINEERING F01 - MACHINES OR ENGINES IN GENERAL F01N - GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL
F01N3/2892 - {Exhaust flow directors or the like, e.g. upstream of catalytic device}

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02T - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
Y02T10/12 - Technologies for the improvement of indicated efficiency of a conventional ICE

B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01F - MIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
B01F5/0451 - {with additional mixing means other than injector mixers, e.g. screens, baffles or rotating elements}
B01F2005/0638 - {Mounted on a support member extending transversally through the mixing tube}

F - MECHANICAL ENGINEERING F01 - MACHINES OR ENGINES IN GENERAL F01N - GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL
F01N2610/06 - the substance being in the gaseous form
F01N3/2066 - {Selective catalytic reduction [SCR]}

B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01F - MIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
B01F3/02 - gases with gases or vapours {
B01F5/0466 - {Ring, torus, toroidal or coiled configurations}
B01F5/0616 - {the baffles being made by deforming flat pieces of material, e.g. by bonding, folding, deep drawing

F - MECHANICAL ENGINEERING F01 - MACHINES OR ENGINES IN GENERAL F01N - GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL
F01N2610/02 - the substance being ammonia or urea
F01N2610/1453 - Sprayers or atomisers
F01N3/00 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust

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DOE Contract Number:: 0004125

Resource Type:: Patent

Resource Relation:: Patent File Date: 2013 Aug 26

Country of Publication:: United States

Language:: English

Subject:: 33 ADVANCED PROPULSION SYSTEMS; 42 ENGINEERING; 02 PETROLEUM

Citation Formats


                    Reeves, Matt, Henry, Cary A., and Ruth, Michael J. Reductant injection and mixing system.  United States: N. p., 2016. 
        Web.

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                    Reeves, Matt, Henry, Cary A., & Ruth, Michael J. Reductant injection and mixing system.  United States.

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                    Reeves, Matt, Henry, Cary A., and Ruth, Michael J. Tue .  
        "Reductant injection and mixing system".  United States.  https://www.osti.gov/servlets/purl/1240415.

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@article{osti_1240415,

  title        = {Reductant injection and mixing system},

  author       = {Reeves, Matt and Henry, Cary A. and Ruth, Michael J.},

  abstractNote = {A gaseous reductant injection and mixing system is described herein. The system includes an injector for injecting a gaseous reductant into an exhaust gas stream, and a mixer attached to a surface of the injector. The injector includes a plurality of apertures through which the gaseous reductant is injected into an exhaust gas stream. The mixer includes a plurality of fluid deflecting elements.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2016},

  month        = {2}

}

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