PUMP FOR TRANSPORTING LIQUIDS Russian patent published in 2004 - IPC

FIELD: pumping installations or systems.

SUBSTANCE: pump has housing which receives the pumping chamber and has opening for the shaft. The shaft of the working wheel passes through the opening for the shaft and determines the space between the shaft of the working wheel and the opening for the shaft. The working wheel is secured to the shaft inside the pumping chamber. The working wheel has the first set of blades for transporting liquid through the pumping chamber and the second set of blades which provides pressure for discharging the fluid from the opening for working wheel . The pump is provided with fan impeller connected to the shaft of the working wheel and hydraulically connected with the space. The impeller generates the low-pressure zone inside the pumping chamber for filling the pump. The pump provided with unsealed working wheel prevents liquid to penetrate through the space.

EFFECT: enhanced efficiency.

10 cl, 11 dwg