SET FOR PUMPING VISCOUS-FLOW MATERIALS Russian patent published in 1995 - IPC

FIELD: transportation of materials. SUBSTANCE: set has power hydraulic station 1, working cylinder 2 with power cylinder 3 mounted inside it and piston 4. Pump housing is provided with intake funnel 5, pressure branch pipe 6 connected with transportation pipe line 7 and cut-off device 8. Piston pump for supplying lubricant is rigidly connected on one side with piston 4 of piston pump for feeding the viscous-flow materials through stem 10 and rod 11 and on other side it is connected with tank 14 through branch pipe 12 and valve 13 and with transportation pipe line 7 through valve 15 and circular passage 16. EFFECT: enhanced reliability. 1 dwg