WATER PUMP WITH ENERGY SAVING DRIVE

FIELD: water supply systems. ^ SUBSTANCE: invention can be used in agricultural water supply using open watering. Hollow piston in its upper part is provided with bracket having holes in bottom. Valves are closed and opened by movable valve-float freely moving under action of buoyancy force and gravity force along outer surface of cylinder of working chamber. Kinematic connection of throttle valves of supply and outgoing channels with piston is provided by articulated tie-rods and overrunning clutches. Ecologically clean pump can operate at head of 0.5 m and higher. Owing to open currents (springs, rivers, etc), thus feeding to people, animals, irrigation, watering of crops and fire fighting. ^ EFFECT: enlarged operating capabilities. ^ 3 cl, 3 dwg