Effect of Oil Evaporation from Cylinder Wall on Oil Consumption of a Gasoline Engine (Second Report)

–Effect of Temperature and Oil Film Thickness around Cylinder–

Abstract

In this paper, the effects of cylinder temperature and oil film thickness distribution around cylinder on the evaporated oil from the cylinder were examined by using the developed oil evaporation model in consideration with cylinder bore deformation. Moreover, the calculated evaporative oil was compared with the measured oil consumption of a gasoline engine. The results showed that the calculated oil evaporation from the cylinder wall closely corresponded to the measured oil consumption. The majority of measured oil consumption is the oil evaporated from the cylinder wall.