IMPELLER OF CENTRIFUGAL BLOWER

摘要

The centrifugal fan impeller comprises an end disc (4) with hub (6) for the drive (5) shaft. An opposite and disc (2) with circumferentially equi-shaped blades (3) is connected between these discs and inclined at a predetermined angle relative to the respective radii. The dia. (DIH) at the radially inner ends of the blades on the hub disc side is smaller than the diameter (DIS) at their inner ends on the opposite disc. A mould parting plane is arranged between these two diameters to permit injectionmoulding the impeller as a one-piece plastics component.