Professor Kazimierz Lejda graduated in mechanical engineering in 1971 from Cracow University of Technology where he also earned his PhD degree in internal combustion engine engineering in 1983. In 1993 he obtained a postdoctoral qualification from Kiev Institute of Vehicles and Roads (Ukraine) within automotive vehicle and combustion engine engineering. He has stayed employed in Rzeszów University of Technology since 1973; he got the chair of Department of Automotive Vehicles and Internal Combustion Engines in 1994, and was honoured with professorship in 2011. His scientific interests cover development of injection systems for greening engines and improving their performances. Prof. Lejda is a member of Polish Academy of Sciences and other domestic and international scientific organizations, and is a very prolific industrial and scientific researcher and publisher; he has drawn up more than 365 items including 7 books. He also reveals great contribution to young scientists’ and engineers’ education.