IMPELLER Russian patent published in 1995 - IPC

FIELD: mechanical engineering. SUBSTANCE: radial square-shaped blades relative to the center are positioned on the disk location surface. Geometrical dimensions of the profile of adjacent blades or their groups are different on different radii from the base to the peripheral part and vary on radius according to the linear law. Adjacent blades or their groups with dimensions of the profile increasing on radius alternate with adjacent blades or their groups with decreasing dimensions. EFFECT: facilitated procedure. 3 cl, 4 dwg