Abstract
This paper deals with the dynamic characteristics of the water hydraulic drive system using tap water as a operating liquid, whose research and development is required from the view point of the environmental assessment and resources saving. The system using in the experiment is similar to a typical oil-hydraulic circuit consisting of a vortex pump, a relief valve, an electro-magnetic type on-off valve and a single rod cylinder. The step responses of pressure, piston displacement and load force in the operation condition of a low pressure as a tap water are obtained experimentally and the fundamental characteristics of a water hydraulic drive system are discussed
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