ターボチャージャ用浮動ブッシュ軸受の流体潤滑特性 : 第2報, 強制給油圧を考慮した定常特性の解析

概要

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In this paper, influence of oil supply pressure on steady-state characteristics in floating bush bearing used for turbocharger is investigated by theoretical calculation using Reynold's equation. Steady-state properties are calculated by performing load and friction torque balance between inner oil film and outer oil film of bush, and oil temperature equilibrium. As the calculational results, the follows have been found about the effects of higher pressure oil supply, (1) eccentricity ratio and oil flow increase in both inner and outer oil film, (2) temperature raise due to friction heat of inner film is suppressed because of oil flow increase, (3) due to superposition of hydro-static and hydro-dynamic pressure, there is no oil film area where pressure is zero. Furthermore, these calculational results have been verified by experiments, and for example of design use, the developed calculation method has been applied to investigation of the relation between bearing clearance and steady-state properties.
一般社団法人日本機械学会の論文
1999-01-25