A-14 スラスト空気軸受の数値流れ解析(空力II,一般講演)

概要

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The air bearing technology is important to improve the emission and oil consumption of the turbocharged engine. The compliant foil thrust air bearing having the damper with the original shape has been studied for the oil free turbocharger. The effects of the clearance distribution between the bearing surface and the runner surface of the thrust air bearing on the generated pressure distribution and the load capacities of the bearing have been analyzed by use of 3D-CFD. The thrust air bearing with the foil carved a shallow squared groove at the leading edge of each load surface was designed from the relationship between the clearance distribution and the load capacity. The numerical results estimated the load capacity about the foil bearing with the groove indicated 2.5 times as large as the standard one without groove.
社団法人日本ガスタービン学会の論文
2005-09-01