PUMP PLANT Russian patent published in 2010 - IPC F04B47/00 

FIELD: engines and pumps.

SUBSTANCE: proposed invention is intended for water lifting from wells with casing. Pump plant consists of two pipe strings with valve unit arranged inside well and hydraulic pulsator mounted on the surface. The latter comprises articulated power source, crankshaft, con rod, piston and cylinder. Outer pipe string represents well casing with tapered bottom. To separate plant pressure channel from well water intake, tapered separator with sealing element is used. Driving channel of proposed pump plant is arranged inside pressure channel that allows using cylindrical piston. Aforesaid valve unit is furnished with two impact valves and one suction valve.

EFFECT: proposed plant can be used inside minimum section wells and well casing; twofold reduction in weight and material input.

1 dwg