Flow model and dynamic characteristics of a direct spring loaded poppet relief valve

This paper is concerned with the flow model and dynamic characteristics of the poppet relief valve. The flow model of the poppet valve orifice is established with a novel function of flow discharge coefficient, and the dynamic model including the aforementioned flow model of the poppet valve is established with consideration of the fluid forces caused by the valve body motion and the flowrate variation. Both the simulated and measured results of the dynamic response of the poppet relief valve shows that the experimental and simulation results are in fine accordance with each other in the perspective of the general shape of response, which confirm that the dynamic model of the poppet relief valve proposed in this paper is both accurate and efficient.