SCREW ELECTROMAGNETIC PUMP Russian patent published in 1998 - IPC

FIELD: electrical engineering. SUBSTANCE: screw electromagnetic pump includes through duct 3 and magnetic system 1. Duct has coaxial walls, outer 4 and inner 5. Screw partition 6 is located between walls 4,5. Partition is made from electric insulation material. Inner and outer walls of duct are connected to power supply source. Magnetic system is manufactured in the form of solenoid 1 which has outer ferromagnetic screen 2. Walls of duct are made from nonmagnetic material. EFFECT: simplified design, enhanced functional reliability and efficiency. 3 cl, 1 dwg