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US 2013/0152893 A1Published application
Laser-induced spark ignition for an internal combustion engine
AssigneeRobert Bosch GmbH
InventorsPascal Woerner, Juergen Raimann, Joerg Engelhardt, Martin Weinrotter
Life of this patent
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Abstract
Laser spark plug for an internal combustion engine has at least one laser unit for guiding, shaping and/or generating laser radiation, further including a combustion chamber window, and a housing which has, on the opposite side of the combustion chamber window from the laser unit, an aperture for the passage of the laser radiation guided, shaped and/or generated by the laser unit into a combustion chamber, the length of the aperture being 4 mm or more.
Claims16
1-15. (canceled)
A laser spark plug for an internal combustion engine, comprising:
- at least one laser unit for at least one of producing, shaping, and guiding laser radiation;
- a combustion chamber window;
- and
- a housing having an aperture at an end of the housing on the combustion chamber side, the aperture being on the opposite side of the combustion chamber window from the laser unit, wherein the aperture facilitates passage of the laser radiation from the laser unit into a combustion chamber, and wherein the aperture has a length of at least 4 mm.
1 more element
Dependencies are inferred from the claim text.