| 摘要 |
The invention relates to a radial-delivery blower impeller in which between at least two back disks (1, 12) parallel to one another or conical in shape, radially extending blades (2) are provided which have a constant material thickness over their entire extent and which are attached in a bearing manner by their radially extending blade edges to the back disks (1 and 12). The noise produced in the case of a blower impeller of this type can be reduced by the blades (2) being arranged between the back disks (1 and 12) in such a way that the pitch of their leading edge (4) with respect to the axial direction of the blower impeller is less than the pitch of their trailing edge (5) with respect to the axial direction of the blower impeller. <IMAGE>
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