作動油内の空気に関する研究

概要

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In this report, results obtained from researches on air solubilities of petroleum-base oils and on changes in diameters of stationary bubbles in the oils are presented. Some of the results are as follows. The air solubilities are calculated by the theory on regular solutions and measured for 5 petroleum-base oils. And we obtained that measured values of the air solubilities fit in the calculated values by assuming that solubility parameters of the oils are 1.4×10^4√<J/m^3> for paraffin-base oils and 1.6×10^4√<J/m^3> for naphthene-base oils, as the results. From the observations of the changes in diameters of single stationary bubbles in the oils, we obtained that the diffusivities of the dissolved air in the 5 petroleum-base oils are in 1×10^<-10>m^2/s at temperature T≅300 K.
一般社団法人日本機械学会の論文
1984-01-28