へリングボーンジャーナル軸受のポンピング効果を利用したスパイ ラル溝軸受 : 軸受特性の数値計算法と各諸元の影響

抄録

A new type of grooved bearing whose axial load carrying capacity is improved is proposed in this paper. The present type of bearing is composed of herringbone journal bearings, a spiral grooved bearing and a path hole which connects the middle of each bearing. A lubricated gas flows through a hole path by the pumping effect of herringbone grooves. A generalized method of numerical calculation using the narrow groove theory is introduced in this paper for the analysis of the present type of grooved bearings. As a result, of the numerical calculation, axial floating characteristics of the present type of grooved bearings are superior to those of conventional bearings.