PUMP FOR HANDLING HIGH-VISCOSITY FLUIDS Russian patent published in 1998 - IPC

FIELD: handling high-viscosity fluids; performing function of suction dredges. SUBSTANCE: pump includes cylindrical delivery screw feeder and taper loading screw feeder fitted on shaft in housing of rotor fitted on the same shaft in additional housing which is provided with diaphragm having passages and is connected with main housing. Diaphragm is mounted between rotor and delivery screw feeder. Shaft is mounted in bearings. Pump is also provided with sealing disk, discharge connection and delivery branch pipe. Discharge connection is communicated with cavity of additional housing by means of passages. EFFECT: enhanced reliability. 5 dwg