IMPELLER OF AXIAL BLOWER Russian patent published in 2003 - IPC

FIELD: blower manufacture, namely impellers of axial-blow blowers, possibly in power engineering, chemical machine engineering, food industry, especially in blowing installations used in cooling towers or in different systems with oil cooling having heat exchange apparatuses. SUBSTANCE: impeller of axial blower includes boss in the form of disc with central sleeve and blades. Blades are mounted in boss by their cylindrical beaded stems. There are lodgments with cylindrical surface on one side of disc. Over each lodgment insert is mounted with reciprocal cylindrical surface restricting together with disc space for arranging stems with possibility of their rotation. EFFECT: simplified design, possibility for providing any desired attack angle of blades. 5 cl, 3 dwg