Filter desulfation system and method

Title: Filter desulfation system and method

Full Record
Other Related Research

Abstract

A method of removing sulfur from a filter system of an engine includes continuously passing an exhaust flow through a desulfation leg of the filter system during desulfation. The method also includes sensing at least one characteristic of the exhaust flow and modifying a flow rate of the exhaust flow during desulfation in response to the sensing.

Inventors:

Lowe, Michael D ^[1]; Robel, Wade J ^[2]; Verkiel, Maarten ^[1]; Driscoll, James J ^[3]

Metamora, IL
Normale, IL
Dunlap, IL

Issue Date:: 2010-08-10

Research Org.:: Caterpillar Inc., Deerfield, IL (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1013844

Patent Number(s):: 7770386

Application Number:: 11/022,692

Assignee:: Caterpillar Inc (Peoria, IL)

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

Show more

F - MECHANICAL ENGINEERING F01 - MACHINES OR ENGINES IN GENERAL F01N - GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL
F01N3/0885 - {Regeneration of deteriorated absorbents or adsorbents, e.g. desulfurization of NOx traps}
F01N2610/03 - the substance being hydrocarbons, e.g. engine fuel
F01N2610/08 - with prior mixing of the substances with a gas, e.g. air
F01N3/031 - having means for by-passing filters, e.g. when clogged or during cold engine start
F01N3/035 - with catalytic reactors {, e.g. catalysed diesel particulate filters}
F01N3/0814 - {combined with catalytic converters, e.g. NOx absorption/storage reduction catalysts}
F01N3/0842 - {Nitrogen oxides}
F01N2250/02 - filtering and catalytic conversion

Show less

DOE Contract Number:: FC05-97OR22605

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Citation Formats


                    Lowe, Michael D, Robel, Wade J, Verkiel, Maarten, and Driscoll, James J. Filter desulfation system and method.  United States: N. p., 2010. 
        Web.

Copy to clipboard


                    Lowe, Michael D, Robel, Wade J, Verkiel, Maarten, & Driscoll, James J. Filter desulfation system and method.  United States.

Copy to clipboard


                    Lowe, Michael D, Robel, Wade J, Verkiel, Maarten, and Driscoll, James J. Tue .  
        "Filter desulfation system and method".  United States.  https://www.osti.gov/servlets/purl/1013844.

Copy to clipboard


                    
@article{osti_1013844,

  title        = {Filter desulfation system and method},

  author       = {Lowe, Michael D and Robel, Wade J and Verkiel, Maarten and Driscoll, James J},

  abstractNote = {A method of removing sulfur from a filter system of an engine includes continuously passing an exhaust flow through a desulfation leg of the filter system during desulfation. The method also includes sensing at least one characteristic of the exhaust flow and modifying a flow rate of the exhaust flow during desulfation in response to the sensing.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2010},

  month        = {8}

}

Copy to clipboard

Patent:

View Patent

Save / Share:

Export Metadata

Save to My Library

Similar Records in DOE Patents and OSTI.GOV collections:

System and method for constructing filters for detecting signals whose frequency content varies with time

Patent Qian, Shie [Austin, TX]; Dunham, Mark E [Los Alamos, NM]

A system and method for constructing a bank of filters which detect the presence of signals whose frequency content varies with time. The present invention includes a novel system and method for developing one or more time templates designed to match the received signals of interest and the bank of matched filters use the one or more time templates to detect the received signals. Each matched filter compares the received signal x(t) with a respective, unique time template that has been designed to approximate a form of the signals of interest. The robust time domain template is assumed to bemore »« less
Full Text Available
Electrically heated particulate filter propagation support methods and systems

Patent Gonze, Eugene V [Pinckney, MI]; Ament, Frank [Troy, MI]

A control system that controls regeneration of a particulate filter is provided. The system generally includes a regeneration module that controls current to the particulate filter to initiate combustion of particulate matter in the particulate filter. A propagation module estimates a propagation status of the combustion of the particulate matter based on a combustion temperature. A temperature adjustment module controls the combustion temperature by selectively increasing a temperature of exhaust that passes through the particulate filter.
Full Text Available
Electrically heated particulate filter preparation methods and systems

Patent Gonze, Eugene V [Pinckney, MI]

A control system that controls regeneration of a particulate filter is provided. The system generally includes a fuel control module that controls injection of fuel into exhaust that passes through the particulate filter. A regeneration module controls current to the particulate filter to initiate regeneration after the fuel has been injected into the exhaust.
Full Text Available
Electrically heated particulate filter regeneration methods and systems for hybrid vehicles

Patent Gonze, Eugene V [Pinckney, MI]; Paratore, Jr., Michael J. (Howell, MI)

A control system for controlling regeneration of a particulate filter for a hybrid vehicle is provided. The system generally includes a regeneration module that controls current to the particulate filter to initiate regeneration. An engine control module controls operation of an engine of the hybrid vehicle based on the control of the current to the particulate filter.
Full Text Available
Electrically heated particulate filter diagnostic systems and methods

Patent Gonze, Eugene V [Pinckney, MI]

A system that diagnoses regeneration of an electrically heated particulate filter is provided. The system generally includes a grid module that diagnoses a fault of the grid based on at least one of a current signal and a voltage signal. A diagnostic module at least one of sets a fault status and generates a warning signal based on the fault of the grid.
Full Text Available

Similar Records