Distributed ignition method and apparatus for a combustion engine

Willi, Martin L.; Bailey, Brett M.; Fiveland, Scott B.; Gong, Weidong

Title: Distributed ignition method and apparatus for a combustion engine

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Abstract

A method and apparatus for operating an internal combustion engine is provided. The method comprises the steps of introducing a primary fuel into a main combustion chamber of the engine, introducing a pilot fuel into the main combustion chamber of the engine, determining an operating load of the engine, determining a desired spark plug ignition timing based on the engine operating load, and igniting the primary fuel and pilot fuel with a spark plug at the desired spark plug ignition timing. The method is characterized in that the octane number of the pilot fuel is lower than the octane number of the primary fuel.

Inventors:: Willi, Martin L.; Bailey, Brett M.; Fiveland, Scott B.; Gong, Weidong

Issue Date:: 2006-03-07

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

Sponsoring Org.:: USDOE

OSTI Identifier:: 1175661

Patent Number(s):: 7007669

Application Number:: 11/003,537

Assignee:: Caterpillar Inc. (Peoria, IL)

Patent Classifications (CPCs):: Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02T - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION

F - MECHANICAL ENGINEERING F02 - COMBUSTION ENGINES F02D - CONTROLLING COMBUSTION ENGINES

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Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02T - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
Y02T10/30 - Use of alternative fuels
Y02T10/12 - Technologies for the improvement of indicated efficiency of a conventional ICE

F - MECHANICAL ENGINEERING F02 - COMBUSTION ENGINES F02D - CONTROLLING COMBUSTION ENGINES
F02D41/0025 - {Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures}

F - MECHANICAL ENGINEERING F02 - COMBUSTION ENGINES F02M - SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
F02M26/05 - High pressure loops, i.e. wherein recirculated exhaust gas is taken out from the exhaust system upstream of the turbine and reintroduced into the intake system downstream of the compressor
F02M25/0228 - {Adding fuel and water emulsion}

F - MECHANICAL ENGINEERING F02 - COMBUSTION ENGINES F02D - CONTROLLING COMBUSTION ENGINES
F02D19/0692 - {Arrangement of multiple injectors per combustion chamber}

F - MECHANICAL ENGINEERING F02 - COMBUSTION ENGINES F02P - IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES
F02P5/1502 - {using one central computing unit}

F - MECHANICAL ENGINEERING F02 - COMBUSTION ENGINES F02D - CONTROLLING COMBUSTION ENGINES
F02D41/0027 - {the fuel being gaseous
F02D19/10 - peculiar to compression-ignition engines in which the main fuel is gaseous
F02D19/061 - {by controlling fuel injectors}
F02D15/04 - by alteration of volume of compression space without changing piston stroke

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02T - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
Y02T10/40 - Engine management systems

F - MECHANICAL ENGINEERING F02 - COMBUSTION ENGINES F02D - CONTROLLING COMBUSTION ENGINES
F02D13/0269 - {Controlling the valves to perform a Miller-Atkinson cycle}
F02D19/0655 - {at least one fuel being an alcohol, e.g. ethanol

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DOE Contract Number:: FC26-01CH11079

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: 33 ADVANCED PROPULSION SYSTEMS

Citation Formats


                    Willi, Martin L., Bailey, Brett M., Fiveland, Scott B., and Gong, Weidong. Distributed ignition method and apparatus for a combustion engine.  United States: N. p., 2006. 
        Web.

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                    Willi, Martin L., Bailey, Brett M., Fiveland, Scott B., & Gong, Weidong. Distributed ignition method and apparatus for a combustion engine.  United States.

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                    Willi, Martin L., Bailey, Brett M., Fiveland, Scott B., and Gong, Weidong. Tue .  
        "Distributed ignition method and apparatus for a combustion engine".  United States.  https://www.osti.gov/servlets/purl/1175661.

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@article{osti_1175661,

  title        = {Distributed ignition method and apparatus for a combustion engine},

  author       = {Willi, Martin L. and Bailey, Brett M. and Fiveland, Scott B. and Gong, Weidong},

  abstractNote = {A method and apparatus for operating an internal combustion engine is provided. The method comprises the steps of introducing a primary fuel into a main combustion chamber of the engine, introducing a pilot fuel into the main combustion chamber of the engine, determining an operating load of the engine, determining a desired spark plug ignition timing based on the engine operating load, and igniting the primary fuel and pilot fuel with a spark plug at the desired spark plug ignition timing. The method is characterized in that the octane number of the pilot fuel is lower than the octane number of the primary fuel.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2006},

  month        = {3}

}

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