PUMPING PLANT Russian patent published in 1995 - IPC

FIELD: pumping engineering. SUBSTANCE: mounted in casing having end shields and inlet and outlet branch pipes are electric motor with drive shaft mounted in bearing supports and pumping unit. Pumping unit has housing, rotor connected with shaft by means of coupling and passages for supply and discharge of working medium. Intermediate cover is located between pumping unit is connected with drive shaft by means of coupling. Intermediate cover and end shield located on side of electric motor are profiled in their configuration and form circular chambers around drive shaft for receiving the bearing supports directed towards each other. Bearing supports are made in form of self-setting spherical bushes. EFFECT: enhanced reliability. 2 cl, 2 dwg