CENTRIFUGAL PUMPING UNIT Russian patent published in 1996 - IPC

FIELD: construction of hermetic pumps. SUBSTANCE: housing and cover of pumping unit form flow-through chamber brought in communication with pump inlet and outlet. Mounted in this chamber for rotary sliding is rotor made in form of two disks with stator located between them and pressed between cover and housing; pump impeller is secured to one of disks. Built in disks around circumference are magnets of alternating polarity and magnetic circuit rings. Control is effected by means of rotor position sensor through electronic commutator. EFFECT: enhanced reliability. 5 cl, 6 dwg