SUBMERSIBLE PUMP UNIT Russian patent published in 2016 - IPC F04B47/06 F04B17/04 

FIELD: oil and gas industry; engines and pumps.

SUBSTANCE: pump unit comprises housing, suction valve, pressure valve, rotor, stator and Induction coil. Plunger-cylinder pair is made in the form of linear pump. Plunger consists of metal tube with permanent magnets with opposite poles, alternating with metal inserts is simultaneously and rotor pump unit. Cylinder rotor is made from alternating fused rings made from ferromagnetic and nonmagnetic materials and serves as an insulating tube. Stator consists of cylinder made of alternating fused rings ferromagnetic and non-magnetic materials and induction coils, contained in core box. Distance between the cylinder of rotor and stator cylinder is made with provision of minimum gap. Induction coils and box-cores are made with through round holes arranged coaxially with all inductance coils and boxes-cores, in which heat tubes are inserted, which are heat sink.

EFFECT: increased power and heat sink.

5 cl, 3 dwg