Patent ID: 9133813
Filing Date: 2015-09-15
Classification: F02P,F23Q

Abstract:
1. A laser spark plug for an internal combustion engine, comprising: a coupling arrangement to couple and focus laser radiation in or on an ignition point; and an influencing arrangement to influence a fluid flow disposed in an end region of the laser spark plug on the side of the combustion chamber, which represent an essentially sleeve-shaped extension of the laser spark plug in the direction of the combustion chamber; wherein the influencing arrangement is configured to influence the fluid flow in the region of the ignition point, wherein the influencing arrangement has in its end region on the combustion chamber side an at least sectionally beveled end face, whose surface normal forms an angle with a longitudinal axis of the laser spark plug that differs from 0°, and wherein the end face has along a circumferential direction at least two different surface areas, whose surface normals in each case form a different angle with the longitudinal axis of the laser spark plug.