Abstract
The article considers a single-piston mortar pump with electromechanical drive, ball suction and spring-loaded discharge valves, a special insert in the suction chamber and a compensator of increased volume.The analysis of the influence of hydrodynamic pressure on the valve balls is carried out taking into account all the design parameters of the hydraulic part of the mortar pump.The mechanisms of action of the hydrodynamic pressure force on the ball from the side of its solution flow on the valve ball due to such factors as the cumulative flow of the solution through the hole in the valve seat are established; the influence of normal and tangential stresses that occur in the surface layer on the surface of the valve ball and occur when the solution has a structured viscosity.
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