MAGNETIC PUMP Russian patent published in 2003 - IPC

FIELD: pumping different-density liquids and gases. SUBSTANCE: pump includes housing in which one pair or several pairs of working members in the form of permanent magnets are arranged. Said magnets are made of high coercive force materials turned one to another in each pair by their similar magnetic poles and forming working chambers in pairs. Chambers are mutually connected though duct for transferring working agent. At least one working member of pair may perform reciprocation motion relative to another working member. Inlet and outlet ports are connected with working chambers by means of check valves. Pump also includes electromagnetic field generator provided with device for changing its polarity. Generator is arranged in such a way that to provide monotonous or non-monotonous gradient of magnetic field in zone embracing each working chamber and each pair of working members. EFFECT: high suction capability, high outlet pressure and relatively small size due to concentration of magnetic fluxes of electromagnetic field generator and permanent magnets directly in working chamber. 3 dwg