FIELD: mechanical engineering. SUBSTANCE: axial- flow impeller has hub 1 for securing the impeller to shaft and many radial blades 4 which are connected to individual holders 12 of blades for turn; they are located between two parallel disks 5 which are located in front of each other; they have similar diameter and through holes for bolts; disks are supported by hub 1. Holder 12 of each blade 4 is secured to disks 5 by means of bolts 17 and 18 which pass through holes for bolts in respective disks 5. EFFECT: simplified construction; low cost; possibility of manufacturing impellers with varying number of blades. 7 cl, 7 dwg
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