《机床与液压》 Hydromechatronics Engineering

文章详情

稿件标题: Numerical investigation on the effect of cone neck diameter on the performance of hydraulic poppet valve
稿件作者: 石金艳,李辉
关键字词: Hydraulic poppet valve, Performance, Flow, Flow coefficient, Cone resistance, Steady flow force
文章摘要: Computational Fluid Dynamics (CFD) method was adopted in this paper to analyze the inner flow of valve cavity with different cone neck diameters. The mass flow rate, flow coefficient, cone resistance and steady flow force of hydraulic poppet valve were obtained at different uncork. Based on the simulation results, it has shown that the change of valve cone neck diameter D will not cause the change of mass flow rate when the valve opening is a constant, and the flow coefficient is almost a constant around 0.86; valve cone neck diameter D has small influence on the cone resistance and steady flow force. With the increase of valve opening, the cone resistance gets decreased, however, the steady flow force gets increased during this process.
收录刊物: 2014.24
稿件基金: Scientific Research Fund of Hunan Provincial Education Department (No. 12B091)
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