Аннотация
Abstract The developed new types of hydraulic RAM pumping units with a drive from an energy-saving and environmentally friendly water source of energy in watercourses, their design and technological schemes for water lifting from watercourses for irrigation of pastures and land plots, a brief device, operating principle, novelty, distinctive features and advantages in comparison with analogues are considered. The following research methods were used: patent method with a review of works, theoretical and experimental. The theoretical prerequisites of the hydro-impact method of water lifting to determine the dependencies: supply, pressure and efficiency ratio of the total water flow and experimental studies to confirm the reliability of the proposed formulas are given. Positive results of laboratory tests and economic verification of two developed variants of hydraulic RAM pumping units are given. Research results have shown that the proposed hydro-RAM pumping units have significant advantages over their analogues: increase in feed by 1.8-3.5 times and efficiency by 1.9 times.