管路外からインペラが直接電磁駆動されるターボ型小形ポンプの試作とその基礎特性

概要

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Normal fluid-carrying pumps are classified into three types : turbo-type, volume-type, and others. This study deals with a newly developed turbo-type axial flow mini-pump, whose impeller is driven directly by electro-magnets with U-shaped cores located outside of the pipe. At the first step of this study, a prototype pump was produced, where a commercially available flat circular disc-type ferrite or neodymium permanent magnet is bonded adhesively to the top of each of the blades of the impeller, and this circular disc-type magnet is driven directly by eight electro-magnets. In the case of ferrite magnet, the magnet and the cores of electro-magnets are overlapped 10mm in radial direction, but in the case of neodymium magnet, both are separated 2mm. At the second step of this study, the fundamental pumping characteristics of this turbo-type mini-pump, such as maximum rotation speed in air and in water, pump head and flow rate as a function of the rotation speed of the impeller, were measured and discussed.
社団法人日本磁気学会の論文
2006-01-01