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Title:
LASER IGNITION DEVICE AND LASER IGNITION INTERNAL COMBUSTION ENGINE
Document Type and Number:
Japanese Patent JP2008291832
Kind Code:
A
Abstract:

To provide a laser ignition device capable of stably igniting a fuel particle, and to provide a laser ignition internal combustion engine capable of properly burning the fuel particle.

This laser ignition device 20 has a laser beam generating means 28 for emitting a laser beam by igniting the fuel particle 60 in a combustion chamber by irradiating and condensing the laser beam LB1 in the combustion chamber 50 of an internal combustion engine 2, and a condensing optical member 21 for guiding the emitted laser beam into the combustion chamber to be condensed in the combustion chamber, wherein the laser beam generating means is a low BPP laser beam generating means which emits the laser beam with a BPP value of no more than 20 mm * mrad (a radius * a half angle).


Inventors:
TAIDO AKIKAZU
KATO TOMOAKI
Application Number:
JP2008067257A
Publication Date:
December 04, 2008
Filing Date:
March 17, 2008
Export Citation:
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Assignee:
NGK SPARK PLUG CO
International Classes:
F02P23/04
Domestic Patent References:
JP2006329186A2006-12-07
JP2006527494A2006-11-30