蛍光法によるピストン曲面油膜分布計測 : ピストンスカートの油膜挙動の解析 (<小特集>エンジンシステムの新展開)

概要

論文の詳細を見る
A new method using an induced fluorescence technique with a filter-covered Xe-flash lamp and a CCD camera has been developed, by which the 2-dimensional distribution of lubricating oil film thickness between piston and cylinder liner in an operating engine can be measured. The results show that it is possible to estimate the oil film boundary position on the skirt from the oil film thickness distribution. Analysis of the wrist pin offset effect shows that excessive pin offset increases the piston friction force during the compression stroke in motoring, because the piston tilts unfavorably and consequently the oil film on the upper side of the skirt becomes thinner at the antithrust side.
社団法人日本機械学会の論文
1995-10-25