Journal of Dynamics and VibroacousticsJournal of Dynamics and Vibroacoustics2409-4579Samara National Research University276610.18287/2409-4579-2015-2-2-42-49UnknownHYDRODYNAMICS AND CHARACTERISTICS OF PISTON PUMP WITH FLUIDIC DIODESKhabarovaD. F.dkhabarova@bk.ruSpiridonovE. K.spiridonovek@susu.ac.ruSouth Ural State university (SUSU) 76, Lenin Avenue Chelyabinsk 454080, Russian Federation201120152242491711201524032016Copyright © 2017, Journal of Dynamics and Vibroacoustics2017<p><em>The operational process of a piston pump with dampeners which valves are replaced by hydraulic semiconductors is researched. The calculation model for the complex stream flow in the pump flow-part under harmonic motion of a piston is proposed. Dependences of flow characteristic and pump efficiency are derived. The influence of pump parameters on its characteristics is analyzed. It is found that an increase of the piston relative square and diodicity causes flow characteristic boost. Valveless pump efficiency mainly depends on diodicity, diodicity increase causes efficiency boost.</em></p>Piston pump, valves, hydraulic semiconductor, calculation model, dimension and dimensionless parameters, flow characteristic, efficiency.Поршневой насос, клапаны, гидравлический полупроводник, расчетная модель, размерные и безраз- мерные параметры, расходная характеристика, КПД[1. Bashta, T.M. (1974), Ob’emnye nasosy i gidravlicheskie dvigateli gidrosistem: Uchebnik dlya vuzov [Displacement Pumps and Hydraulic Motors of Hydrosystems: A Textbook for High Schools], Mashinostroenie, Moscow, 606 p.][2. Khabarov, V.E. (2006), Ustroystvo, konstruktivnye osobennosti i tekhniskie kharakteristiki porshnevykh nasosov: uchebno-metod. posobie [Structure, Design Features and the Technical Characteristics of Piston Pumps: a Teaching Manual], Stavropol', StGAU "Agrus", 27 p.][3. Lebedev, I.V, Treskunov, S.L. and Yakovenko, V.S. (1973), Elementy struynoy avtomatiki [Eements of Jet Automatic], Mashinostroenie, Moscow, 360 p.][4. Anduze, M., Colin, S. and Cean, R. (2001), Analysis and testing of a fluidic vortex microdiode, Journal of Micromechanics and Microengineering, no.11, pp. 108 – 112.][5. Yoder, G.L., Jr. Elcassadgi, Y. and De Leon, G. (2011), Vortex Diode Analysis and Testing for Fluoride Salt-Colled High-Temperature Reactors, UT-Battelle, 40 p.]