Waste heat recovery system for recapturing energy after engine aftertreatment systems

Ernst, Timothy C.; Nelson, Christopher R.

Title: Waste heat recovery system for recapturing energy after engine aftertreatment systems

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Abstract

The disclosure provides a waste heat recovery (WHR) system including a Rankine cycle (RC) subsystem for converting heat of exhaust gas from an internal combustion engine, and an internal combustion engine including the same. The WHR system includes an exhaust gas heat exchanger that is fluidly coupled downstream of an exhaust aftertreatment system and is adapted to transfer heat from the exhaust gas to a working fluid of the RC subsystem. An energy conversion device is fluidly coupled to the exhaust gas heat exchanger and is adapted to receive the vaporized working fluid and convert the energy of the transferred heat. The WHR system includes a control module adapted to control at least one parameter of the RC subsystem based on a detected aftertreatment event of a predetermined thermal management strategy of the aftertreatment system.

Inventors:: Ernst, Timothy C.; Nelson, Christopher R.

Issue Date:: 2014-06-17

Research Org.:: Cummins Intellectual Properties, Inc., Minneapolis, MN (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1134314

Patent Number(s):: 8752378

Application Number:: 13/206,386

Assignee:: Cummins Intellectual Properties, Inc. (Minneapolis, MN)

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

F - MECHANICAL ENGINEERING F02 - COMBUSTION ENGINES F02G - HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS

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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
F01N3/106 - {Auxiliary oxidation catalysts}
F01N3/2882 - {Catalytic reactors combined or associated with other devices, e.g. exhaust silencers or other exhaust purification devices

F - MECHANICAL ENGINEERING F02 - COMBUSTION ENGINES F02G - HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS
F02G5/02 - Profiting from waste heat of exhaust gases

F - MECHANICAL ENGINEERING F01 - MACHINES OR ENGINES IN GENERAL F01N - GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL
F01N2410/00 - By-passing, at least partially, exhaust from inlet to outlet of apparatus, to atmosphere or to other device
F01N2240/02 - a heat exchanger
F01N2560/06 - the means being a temperature sensor
F01N2250/02 - filtering and catalytic conversion
F01N13/0097 - {the purifying devices are arranged in a single housing}

F - MECHANICAL ENGINEERING F01 - MACHINES OR ENGINES IN GENERAL F01K - STEAM ENGINE PLANTS
F01K23/065 - {the combustion taking place in an internal combustion piston engine, e.g. a diesel engine}

F - MECHANICAL ENGINEERING F01 - MACHINES OR ENGINES IN GENERAL F01N - GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL
F01N3/2066 - {Selective catalytic reduction [SCR]}

F - MECHANICAL ENGINEERING F01 - MACHINES OR ENGINES IN GENERAL F01K - STEAM ENGINE PLANTS
F01K25/10 - the vapours being cold, e.g. ammonia, carbon dioxide, ether

F - MECHANICAL ENGINEERING F01 - MACHINES OR ENGINES IN GENERAL F01N - GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL
F01N13/02 - having two or more separate silencers in series

F - MECHANICAL ENGINEERING F01 - MACHINES OR ENGINES IN GENERAL F01K - STEAM ENGINE PLANTS
F01K23/10 - with exhaust fluid of one cycle heating the fluid in another cycle
F01K23/02 - the engine cycles being thermally coupled

F - MECHANICAL ENGINEERING F01 - MACHINES OR ENGINES IN GENERAL F01N - GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL
F01N2900/1404 - Exhaust gas temperature
F01N5/02 - the devices using heat
F01N2610/02 - the substance being ammonia or urea
F01N9/002 - {of filter regeneration, e.g. detection of clogging}
F01N13/009 - {having two or more separate purifying devices arranged in series}

F - MECHANICAL ENGINEERING F01 - MACHINES OR ENGINES IN GENERAL F01K - STEAM ENGINE PLANTS
F01K23/106 - {with water evaporated or preheated at different pressures in exhaust boiler}

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

F - MECHANICAL ENGINEERING F01 - MACHINES OR ENGINES IN GENERAL F01N - GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL
F01N3/035 - with catalytic reactors {, e.g. catalysed diesel particulate filters}

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DOE Contract Number:: FC26-05NT42419

Resource Type:: Patent

Resource Relation:: Patent File Date: 2011 Aug 09

Country of Publication:: United States

Language:: English

Subject:: 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION

Citation Formats


                    Ernst, Timothy C., and Nelson, Christopher R. Waste heat recovery system for recapturing energy after engine aftertreatment systems.  United States: N. p., 2014. 
        Web.

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                    Ernst, Timothy C., & Nelson, Christopher R. Waste heat recovery system for recapturing energy after engine aftertreatment systems.  United States.

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                    Ernst, Timothy C., and Nelson, Christopher R. Tue .  
        "Waste heat recovery system for recapturing energy after engine aftertreatment systems".  United States.  https://www.osti.gov/servlets/purl/1134314.

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@article{osti_1134314,

  title        = {Waste heat recovery system for recapturing energy after engine aftertreatment systems},

  author       = {Ernst, Timothy C. and Nelson, Christopher R.},

  abstractNote = {The disclosure provides a waste heat recovery (WHR) system including a Rankine cycle (RC) subsystem for converting heat of exhaust gas from an internal combustion engine, and an internal combustion engine including the same. The WHR system includes an exhaust gas heat exchanger that is fluidly coupled downstream of an exhaust aftertreatment system and is adapted to transfer heat from the exhaust gas to a working fluid of the RC subsystem. An energy conversion device is fluidly coupled to the exhaust gas heat exchanger and is adapted to receive the vaporized working fluid and convert the energy of the transferred heat. The WHR system includes a control module adapted to control at least one parameter of the RC subsystem based on a detected aftertreatment event of a predetermined thermal management strategy of the aftertreatment system.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2014},

  month        = {6}

}

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