,,Spark plug with laser diodes in the pulsed laser crystal and the central peltier cooling element'

摘要

According to the invention, a laser spark plug (1) is presented in the case of the metal element (5) of the laser spark plug (1) the copper core (4) and the thus in thermal contact with the peltier element (3) with the cooling ribs (2) and that, with the copper core (4) in thermal contact with the metal element (5), wherein the end ring, mirror (6), the mirror (8), the laser crystal (10), the laser diodes array (9), of the outcoupling mirror (13), the q-switch (11) and the adaptive lens system (14), or as a replacement for this purpose the optical arrangement (30) and the optical arrangement (31), or the annular focusing element (20) which with respect to the axis de sleeve (7) by the angle μ (21) is offset, and this in a thermally conductive manner enclose an annular or tubular and with the housing of the metal element (5) are in thermal contact and the tubular mirror (8a) with the metal element (5) is in thermal contact, whereby the laser crystal (10) with the tubular mirror (8) and the laser diodes array (9) at their respective physical contact surfaces are in thermal contact and that the temperature sensor (19) with the laser diodes array (9) is in thermal contact, wherein, after passage of the laser (16) by means of the combustion chamber window (15) in the combustion chamber of the internal combustion engine, the ignition points (17, 18n) are formed. 2. An arrangement according to claim 1, characterized in that the adaptive lens system (14) by means of a tubular or also not tubular piezoelectric actuator is replaced, wherein the piezo stack concentrically axially and are in heat-conducting contact with the sleeve (7) and a focusing lens dynamically in the direction of the combustion chamber window (15) controls.