PNEUMOCHAMBER PUMP FOR TRANSPORTATION OF POWDER-LIKE AND FINE GRAIN MATERIALS Russian patent published in 2007 - IPC B65G53/40 

FIELD: mechanical engineering; pneumotrasport.

SUBSTANCE: proposed pump has chamber 1 with charging valve 2 and compressed air release valve 3 and the following devices arranged in chambers: aeration device 4 with pipeline 5 with compressed air inlet valve 6, pipe 8 furnished with restrictor 7 for discharge of aerated material, and compensating pipe 10 with end 9 open from side of charging valve 2, said pipe being furnished with antechamber 11. Antechamber 11 is coupled through check valve 15 with pipeline 5, is provided with nozzle 13 with turbolator 14 arranged before inlet 12 of pipe 8. Aeration device 4 is essentially multinozzle device with nozzles selectively furnished with turbolators.

EFFECT: provision of stable operation of pump at reduced flow rate and pressure of compressed air owing to decreased resistance of medium.

15 cl, 15 dwg