FIELD: devices for hydraulic transportation of materials; pumps for handling contaminated mixtures and high-pressure liquids; oil, chemical, food-processing and other industries.
SUBSTANCE: proposed pump has hydraulic drive with hydraulic distributors, pumping sections consisting of tubular housings with tubular diaphragms mounted inside them. Mounted inside pumping sections are primary structures made in form of sprockets whose cavities smoothly change to circle in attachment zones. Perimeter of any section of primary structure is equal to length of circumference of diaphragm hole. To deliver and discharge liquid being handled, tubular housing is provided with circular peripheral passages which are communicated with valves and axial passages which change into radial passages.
EFFECT: increase of pump service life by several times as compared with standard pumps.
4 dwg
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