| 主权项 |
1. An axial blower comprising a substantially circular-cylindrical blower pipe having an internal diameter; and wherein, in the blower pipe, a blower rotor is configured, said blower rotor having a rotor shaft coinciding substantially with the centre axis of the circular-cylindrical blower pipe; and wherein the blower rotor comprises a centrally disposed rotor hub on which a number of rotor blades are configured, said rotor hub having, on its outside, a hub surface which is substantially rotary-symmetrical about the centre axis of the rotor hub; and wherein the rotor hub has a leading end and a trailing end, and a diverging section there between where the radius of the hub surface in the diverging section is increased by the distance to the leading end of the hub, characterised in that, in that, in the rotor hub—within the diverging section on the hub surface, a number of sockets are provided in the blower rotor, said sockets extending into the rotor hub and forming an opening in the hub surface; and wherein each socket comprises means for mounting of a rotor blade being, at its proximal end, at the rotor hub, provided with a blade foot to the effect that it can be received and retained in the socket in such a manner that the rotor blade extends from the socket and radially outwards from the hub surface on the rotor hub. |
