FIELD: engines and pumps.
SUBSTANCE: rotary pump impeller comprises top plate 620, bottom plate 630 and assemblage of vanes 602 arranged there between. At least, one of said vanes 602 comprises rear end with first surface 612 jointed with top plate 620 along, in fact, outer edge 608 of top plate 620, and second plate 614 arranged, in fact, at the level of outer surface 631 of bottom plate 630.
EFFECT: increased delivery height, simplified cleaning and higher mechanical strength.
12 cl, 7 dwg
