METHOD FOR WORKING FRICTION STRESSED SURFACES IN INTERNAL COMBUSTION ENGINES

摘要

In the case of a method and a device for working friction-stressed surfaces in internal combustion engines, especially the honed cylinder running surfaces (13) of piston engines, the surface is subjected to laser beam treatment. A pulsed Excimer laser is used for this purpose. …By means of the laser beam treatment with Excimer lasers microsmoothing and refining of the honed surface is achieved in such a way that in the case of mating sliding surfaces, for example of pistons and cylinders in an internal combustion engine, friction and wear are significantly reduced even during the running-in phase. This also means a reduction in the quantity of oil required for lubrication of the mating sliding surfaces. In the case of internal combustion engines this results in more environmentally friendly combustion and may spare and hence increase the service life of the exhaust gas-purifying catalytic converter. ……