Patent ID: 8375911
Filing Date: 2013-02-19
Classification: F02B,F02D,F02P,Y02T

Abstract:
1. A laser spark plug device for an internal combustion engine, comprising: a prechamber configured to receive an ignitable medium; and at least one overflow channel situated outside of a longitudinal axis of the laser spark plug device and configured to provide a fluid connection between an internal space of the prechamber and an external space surrounding the prechamber, wherein the at least one overflow channel is configured in such a way that when a fluid flows through the overflow channel into the internal space of the prechamber a fluid flow having at least one eddy is generated in the internal space of the prechamber, the at least one eddy rotating on an eddy axis forming an angle of more than approximately 45° with the longitudinal axis of the laser spark plug device; wherein the angle between the eddy axis and the longitudinal axis of the laser spark plug device is between approximately 80° and approximately 90°; and wherein a longitudinal axis of the at least one overflow channel forms an angle smaller than approximately 25° with the longitudinal axis of the laser spark plug device.