Abstract
Internal combustion engines are one of the principal sources of air pollution. One of the most harmful pollutants is PM and HC. Reductions in emission were achieved primarily through the combination of increasingly strict standards for news vehicles and technological improvements to the engine and exhaust gas aftertreatment technology to meet these standard. The Institute of Combustion Engines and Transport of Poznan University of Technology in collaboration with BOSMAL Automotive R&D Centre has been working on oil consumption in the aspect of toxic compound emissions. The paper comprises a description of both the conventional and laser treatment of the cylinder block. In addition, it presents the results of the research carried out in order to define the influence of the cylinder block laser treatment on the toxic compound emissions. The tests were conducted at test of car of chassis dynamometer. Car was equipped with engine with a cylinder block either conventional or laser-type. The results of toxic compound emissions were referred to EURO V standards. Additionally, it analyses the influence of the cylinder surface texture and the piston with piston rings on the toxic compound emissions, especially PM and HC. The emission measurements were carried out with the use of AVL devices. Currently, further and more detailed research is being conducted so as to examine thoroughly the correlation between the cylinder block treatment and the emissions.
Keywords: CI engine, Emission, Cylinder Surface Treatment