26-49 EVALUAREA ANALIZELOR DE LABORATOR ALE LUBRIFIANŢILOR ŞI PROCESELOR DE UNGERE ÎN MECANISMELE MOTORULUI CU APRINDERE PRIN COMPRIMARE ÎN FUNCŢIE DE CONŢINUTUL DE BIODIESEL ÎN COMBUSTIBIL


EVALUATION OF LABORATORY ANALYSIS OF LUBRICANTS AND LUBRICATING PROCESSES IN COMPRESSION IGNITED ENGINES’ MECHANISMS DEPENDING ON BIODIESEL CONTENT IN FUEL
Biodiesel use as fuel is a reality today. It is used in compression ignited engines throughout the entire planet. It may come alone or in mixtures with other fuels, either conventional ones or alternative solutions. Biodiesel itself is a bio-alternative solution for fossil fuels. In the present days the content of biodiesel in commercial fuels throughout the country does not exceed 10 %, but in the coming years it will increase toward 20 % and more. There have to be an extensive knowledge and scientific approach related to the effects that biodiesel has upon engine’s lubricants and lubrication processes. In this paper are presented some studies that were developed toward this specific objective and the significant conclusions which were made possible after the research. There are important influences of the biodiesel use as fuel even in the quality of engine lubrication process.
Keywords: biodiesel, lubrication, compression-ignition engines, engine lubricant, physic-chemical characteristics

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