2026-03-13T20:54:48Z https://repo.lib.tut.ac.jp/oai

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Cavitation Phenomena and Performance of Oil Hydraulic Poppet Valve : 3rd Report, Influence of the Poppet Angle and Oil Temperature on the Flow Performance Cavitation Phenomena and Performance of Oil Hydraulic Poppet Valve : 3rd Report, Influence of the Poppet Angle and Oil Temperature on the Flow Performance OSHIMA, Shigeru ICHIKAWA, Tsuneo Cavitatjon Fluid_Power_Systems Poppet_Valve Half_Cut_Model Flow_Performance Critical_Cavitation_Number Poppet_Angle Oil_Temperature Experimental_Study Cavitatjon Fluid_Power_Systems Poppet_Valve Half_Cut_Model Flow_Performance Critical_Cavitation_Number Poppet_Angle Oil_Temperature Experimental_Study The influence of the poppet angle and the oil temperature on the flow characteristics and the cavitation phenomena of an oil hydraulic poppet valve are studied experimentally using a half cut model. The following results are obtained. A change of the poppet angle has great effect on the pressure distribution and the flow contraction degree in the restriction between the poppet surface and the valve seat. Hence a remarkable effect of it appears on the valve performances especially when the chamfer is on the seat. The effect of the oil temperature is explained generally by a change in viscosity and Reynolds number. ・rights：日本機械学会 ・rights：本文データは学協会の許諾に基づきCiNiiから複製したものである ・relation：isVersionOf：http://ci.nii.ac.jp/naid/110002358542/ 一般社団法人日本機械学会 1986-03 eng journal article VoR https://repo.lib.tut.ac.jp/records/1087 http://ci.nii.ac.jp/naid/110002358542/ CiNii 00213764 Bulletin of JSME Bulletin of JSME 29 249 743 750 https://repo.lib.tut.ac.jp/record/1087/files/b00213764-0029-743.pdf application/pdf 842.5 kB 2013-02-20