ディーゼルエンジンの排気PM濃度と潤滑油性能低下に関する研究

概要

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We present that PM, which is produced in the combustion chamber of a direct-injection diesel engine, is transferred to the crankcase lubricant through the cylinder liner due to condensation of vapor. The concentration of PM in lubricant degrades lubricant in the crankcase and increases fuel consumption and corrosion and decrease the life of sliding parts of the engine. In order to minimize these disadvantages, PM purification equipment is set independent of the crankcase. As a result, the following advantages were obtained. (1) Decrease of specific fuel consumption dependent on time could be controlled. (2) Decrease of the wear on sliding parts of the engine was achieved. (3) Lubricant life was prolonged to approximately twice that of regular lubricant. (4) Improvement of specific fuel consumption of the diesel engine could be achieved.
社団法人日本機械学会の論文
1996-03-25