Multiple laser pulse ignition method and apparatus

Title: Multiple laser pulse ignition method and apparatus

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Abstract

Two or more laser light pulses with certain differing temporal lengths and peak pulse powers can be employed sequentially to regulate the rate and duration of laser energy delivery to fuel mixtures, thereby improving fuel ignition performance over a wide range of fuel parameters such as fuel/oxidizer ratios, fuel droplet size, number density and velocity within a fuel aerosol, and initial fuel temperatures.

Inventors:

Early, James W ^[1]

Los Alamos, NM

Issue Date:: 1998-01-01

Research Org.:: Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

OSTI Identifier:: 871574

Patent Number(s):: 5756924

Assignee:: Regents of University of California (Oakland, CA)

Patent Classifications (CPCs):: F - MECHANICAL ENGINEERING F02 - COMBUSTION ENGINES F02P - IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES

F - MECHANICAL ENGINEERING F02 - COMBUSTION ENGINES F02C - GAS-TURBINE PLANTS

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F - MECHANICAL ENGINEERING F02 - COMBUSTION ENGINES F02P - IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES
F02P23/04 - Other physical ignition means, e.g. using laser rays

F - MECHANICAL ENGINEERING F02 - COMBUSTION ENGINES F02C - GAS-TURBINE PLANTS
F02C7/264 - Ignition

F - MECHANICAL ENGINEERING F02 - COMBUSTION ENGINES F02K - JET-PROPULSION PLANTS
F02K9/95 - characterised by starting or ignition means or arrangements

F - MECHANICAL ENGINEERING F02 - COMBUSTION ENGINES F02D - CONTROLLING COMBUSTION ENGINES
F02D2200/0606 - Fuel temperature

F - MECHANICAL ENGINEERING F42 - AMMUNITION F42B - EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
F42B3/113 - activated by optical means, e.g. laser, flashlight

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DOE Contract Number:: W-7405-ENG-36

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: multiple; laser; pulse; ignition; method; apparatus; light; pulses; differing; temporal; lengths; peak; powers; employed; sequentially; regulate; rate; duration; energy; delivery; fuel; mixtures; improving; performance; wide; range; parameters; oxidizer; ratios; droplet; size; density; velocity; aerosol; initial; temperatures; light pulses; laser pulse; laser light; wide range; laser energy; fuel mixture; pulse power; light pulse; multiple laser; droplet size; fuel ignition; peak pulse; fuel mixtures; ignition performance; ignition method; temporal length; /102/123/372/

Citation Formats


                    Early, James W. Multiple laser pulse ignition method and apparatus.  United States: N. p., 1998. 
        Web.

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                    Early, James W. Multiple laser pulse ignition method and apparatus.  United States.

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                    Early, James W. Thu .  
        "Multiple laser pulse ignition method and apparatus".  United States.  https://www.osti.gov/servlets/purl/871574.

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@article{osti_871574,

  title        = {Multiple laser pulse ignition method and apparatus},

  author       = {Early, James W},

  abstractNote = {Two or more laser light pulses with certain differing temporal lengths and peak pulse powers can be employed sequentially to regulate the rate and duration of laser energy delivery to fuel mixtures, thereby improving fuel ignition performance over a wide range of fuel parameters such as fuel/oxidizer ratios, fuel droplet size, number density and velocity within a fuel aerosol, and initial fuel temperatures.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1998},

  month        = {1}

}

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