On structure of the hydraulic energy losses during the multistage vane pump operation

The paper proposes methodology for assessing hydraulic resistance of the vane pump stages. The methodology makes it possible to reveal the hydraulic losses structure during liquid pumping and assess contribution of each type of these losses to the overall balance of the pumping stage energy consumption. Dependence of hydraulic losses on the width of the inter-vane flow channels is shown. Theoretical method was developed to predict the effect achieved by altering the vane design and production technology. Prospects of research, design, development and industrial production of the new type of multistage vane pumps with the oval-type stages are substantiated.

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