IMPELLER FOR CENTRIFUGAL PUMPS Russian patent published in 2016 - IPC F04D29/22 F04D29/24 F04D7/04 

FIELD: machine building.

SUBSTANCE: invention relates to an impeller of centrifugal pump having at least two blades (4) for transfer of media containing solids. According to present invention, blade inlet angle (β1) is less than 0 degrees. At first section (9) angle (β) of blade increases until a value of 0 degrees is achieved. In second section (10) another increase occurs until maximum value is achieved. At third section (11) angle (β) of blade is reduced again.

EFFECT: designing an impeller with high efficiency, wherein formation of deposits and cavitation is prevented.

11 cl, 7 dwg