| 摘要 |
The present invention concerns a centrifugal fan impeller (1) made of composite material, comprising a plurality of modules (3) arranged side by side to form said impeller (1), first means suitable for interconnecting said modules (3), and second means suitable for connecting said impeller (1) to a hub (2), each of said modules (3) constituting an air duct (1a), with axis (1b), which develops from the central area towards the periphery of said impeller (1), said ducts (1a) being comprised entirely in said modules (3). |
