BLADE GRID OF CENTRIFUGAL TURBOMACHINE Russian patent published in 2019 - IPC F04D29/00 

FIELD: turbines or turbomachines.

SUBSTANCE: invention relates to power turbomachines and can be used in centrifugal pumps, fans, injectors and compressors. It is applicable to radial blade grids of impellers, vane diffusers and reverse guiding devices. Minimization of head losses is achieved due to recommended optimum thickness of input edges, which depends on geometric parameters of blade grid at its input and on average absolute value of expected during operation of grid of angles of attack.

EFFECT: invention makes it possible to minimize losses of pressure accompanying flow around rounded inlet edges of blades with angle of attack.

1 cl, 5 dwg