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Title: Multiple laser pulse ignition method and apparatus

Patent ·
OSTI ID:871574
 [1]
  1. Los Alamos, NM
+ Show Author Affiliations

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.

Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
DOE Contract Number:
W-7405-ENG-36
Assignee:
Regents of University of California (Oakland, CA)
Patent Number(s):
US 5756924
OSTI ID:
871574
Country of Publication:
United States
Language:
English

References (9)

Dynamics of flame propagation using laser‐induced spark initiation: Ignition energy measurements journal August 1988
Laser induced spark ignition of methane-oxygen mixtures conference February 2013
Droplet size and equivalence ratio effects on spark ignition of monodisperse N-heptane and methanol sprays journal December 1988
Ignition by condenser sparks. Regions of flammability of ethane, propane, n-butane and n-pentane journal January 1953
Laser Ignited Internal Combustion Engine - An Experimental Study
  • Dale, J. D.; Smy, P. R.; Clements, R. M.
  • 1978 Automotive Engineering Congress and Exposition, SAE Technical Paper Series https://doi.org/10.4271/780329
conference February 1978
Ignition and flame quenching of flowing heterogeneous fuel-air mixtures journal January 1979
Ignition and flame quenching of quiescent fuel mists journal December 1978
The effect of plasma constitution on laser ignition energies journal January 1977
Laser versus conventional ignition of flames conference May 1993

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Related Subjects

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
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