CENTRIFUGAL PUMP FOR NON-UNIFORM MEDIUMS PUMPING OVER Russian patent published in 2004 - IPC

FIELD: machine-building industry.

SUBSTANCE: the invention is dealt with machine-building industry, in particular, with production of the centrifugal pumps for non-uniform mediums pumping over. The centrifugal pump for non-uniform mediums pumping over contains: a housing (1), a fixed on the shaft (2) working wheel (3) with blades (4) fixed between the driving disk and the cover disk (5, 6). The driving disk (5) is made composed including a ring part (7),a hub (8) rigidly linked to each other, and a flange (9). On a contact surface of the flange (9) with the hub (8) there is a ring-type groove (10) providing a hermetically sealed link between them. The groove is intended for a ring-type seal (11) location in it. A ring-type part (7) of the driving disk (5), the cover disc (6) and blades (4) are made pressed out of sheet rolling steel with orientation of the longitudinal axis of the blades (4) in a share direction of steel rolling. The invention is providing an increase of efficiency of the pump due to high-purity machining of surfaces and decrease of the pump working wheel mass.

EFFECT: increased efficiency of the pump due to high-purity machining of surfaces and decreased the pump working wheel mass.

2 cl, 2 dwg