| 摘要 |
The invention relates to a rotor (100) for a rotary machine and comprises: - a shaft (102), rotatable about the axis (104) thereof; and - at least three sets (106a-c) of blades angularly distributed around the shaft (102) and attached to the shaft (102). Each set (106a-c) has: - an inner blade (108a), placed closest to the shaft (102); - an outer blade (108c), placed farthest from the shaft (102); and - an intermediate blade (108b), placed between the inner blade (108a) and the outer blade (108c). Each blade (108a-c) has, within the plane perpendicular to the axis (104), a wing profile, the pressure side of which is oriented towards the axis (104). Each blade (108a-c) has a leading edge (110a-c) and a trailing edge (112a-c), and the distance between the axis (104) and the leading edge (110a-c) is greater than the distance between the axis (104) and the trailing edge (112a-c). The leading edge (110a) of the inner blade (108a) is downstream from an upstream line (114) passing through the axis (104) and through the leading edge (110b) of the intermediate edge (108b), the leading edge (110c) of the outer blade (108c) is upstream from the upstream line (114), the trailing edge (112a) of the inner blade (108a) is downstream from a downstream line (116) passing through the axis (104) and through the trailing edge (112b) of the intermediate blade (108b), and the trailing edge (112c) of the outer blade (108c) is upstream from the downstream line (116). |
