スルーべーン形圧縮機のべーンしゅう動部における摩擦損失 : 第2報,表面粗さとべーン先端半径の影響

概要

論文の詳細を見る
Performance of through-vane compressors used for automotive air conditioners is affected greatly by frictional loss on vane tips, and the magnitude of the frictional loss changes with lubricating condition. To estimate the frictional loss on the vane tip, we need knowledge on the relationship between the lubricating condition and the coefficient of friction under a given geometry of the vane tip and surface roughness. In this study, we measured the coefficient of friction experimentally, using a compressor model, and investigated the influence of the vane-tip radius and the surface roughness on the lubricating condition. It is found that when the oil film thickness becomes less than three times the surface roughness, the lubricating condition changes from hydrodynamic to mixed lubrication. Theoretical calculation reveals that the coefficient of friction on the vane tip changes with rotational angle of the compressor and that the frictional loss in the through-vane compressor is greatly influenced by the radius and the surface roughness of the vane tip.
一般社団法人日本機械学会の論文
1993-10-25