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Information × Registration Number 0200U003464, 0198U002851 , R & D reports Title Mathematical modelling working processes vertical differential mortar pump with continuously adjustable delivery, one flowing cylinder piston and shaking pump pillar popup.stage_title Head Onyshchenko O.G., Registration Date 15-05-2000 Organization Poltava state Technical University named in the honour of Yuri Kondratyk popup.description2 Perspective directions of development mortar pumps designs are intended on the basis of the comprehensive analytical analysis of domestic and foreign pumps structures, exploitation experience and conditions. New scheme of the drive differential cylinder piston in a structure of a shaking pump pillar is offered, that allows to increase mortar pump reliability essentially. The mathematical model of a drive process is designed and let to make optimise drive technological parameter, to evaluate pump delivery pulsation and to receive the movement law of motion of the cylinder piston near to checkpoints. New mechanism of formation solution leakage's through valve seats of sphere valves during their closing is offered, and on it basis the method of calculation of a solution leakage's volume for inlet and outlet valves are offered. The principle of unfill in pump piston camber excite by dilating of air bubble dissolved in solution when pressure lowered below than atmospheric level during suction cycle is offer ed. Product Description popup.authors popup.nrat_date 2020-04-03 Close