TWO-BRANCH ELECTROMAGNETIC PUMP Russian patent published in 1996 - IPC

FIELD: handling fluids, aggressive and abrasive fluids inclusive, at accurate proportioning of liquid and gaseous media in mechanical engineering, instrumentation engineering and medical industry. SUBSTANCE: pump has pumping chamber where piston made of magnetic material is arranged. Piston is surrounded by ferromagnetic fluid envelope. Drive is made in form of electromagnets embracing the pumping chamber at definite distance from one another; electromagnets are fed in turn. Branches of pipe line are fitted with valves made from magnetic material in form of pistons surrounded by ferromagnetic fluid envelope. Before and after pumping chamber, branches of pipe line are embraced by electromagnets connected to adjustable current line in such way that they operate in turn for suction and delivery. Valves are made in form of pistons which are made from magnetic material and are surrounded by ferromagnetic fluid envelope. Control electromagnets of valves are mounted in such way that valves shut off delivery or discharge branch pipes in turn. EFFECT: enhanced reliability. 2 dwg