| 摘要 |
The invention relates to a blade ( 10 ) of a rotor of a ninth phase of a compressor, which can be defined by coordinates of a discreet combination of points, in a Cartesian reference system (X,Y,Z), wherein the axis (Z) is a radial axis intersecting the central axis of the compressor, said blade ( 10 ) having a profile which can be identified by means of a series of closed intersection curves between the profile itself and planes (X,Y) lying at distances (Z) from the central axis, said blade ( 10 ) also comprising a thickening ( 30 ), substantially parallel to a base portion ( 12 ) of the blade ( 10 ) itself, fixable to said rotor, said thickening ( 30 ) being substantially situated half-way up the blade ( 10 ) and being suitable for shifting the natural resonance frequencies of the blade ( 10 ) itself outside a functioning frequency range of said rotor.
|
