A centrifugal impeller and turbomachinery

摘要

1. The centrifugal impeller for a turbomachine comprising aerodynamic guide device (13), each of which (13) has inner walls on which is attached a fabric element (1A, 1B, 1C, 4, 5, 6, 7, 37).;2. Impeller according to claim 1, wherein the first textile elements (1A) are arranged so that they are framed by a respective one of said aerodynamic guide device (13).;3. The impeller of claim 2, wherein the second fabric member (1B) is configured so that it surrounds the alternately upper wall (13S) of the guide device (13) and a bottom wall (131) adjacent the guide device (13), passing along a respective vanes (15) disposed therebetween.;4. Impeller according to claim 3, wherein the third fabric member (1C) has a conical surface with the blades extending from the surface.;5. Impeller according to claim 4, comprising at least one of the following elements:;- The fourth fabric member (4) connected on top of said aerodynamic guide device (13) having a shape substantially covering the centrifugal disk and to perform its intended function,;- Fifth cloth member (5) adapted to create a substantially finished rear plate of the impeller and having a substantially flat annular mold,;- Sixth fabric element (6) connected under said aerodynamic guide device (13) and having a substantially annular shape adapted to harmonize with the exterior surface of said lower aerodynamic guide device (13),;- Seventh fabric element (7) attached around the axial hole (21C) used for connection to the rotor of the turbomachine,;- A segmented fabric element (37) adapted to be placed inside the space in the corner area of ​​the profiled groove (115) guiding devices (13) to increase the rigidity of the entire assembly of the finished impeller exclude preferred flow path for the filling material, and eliminate the occurrence of portions containing only fibers without filler material, which during the curing, the formation of cracks;- A profiled member (19, 20) attached within a respective one of said aerodynamic guide device (13) for counteracting erosive action of the working fluid.;6. Impeller according to claim 1, wherein said fabric elements (1A, 1B, 1C, 4, 5, 6, 7, 39) are impregnated with filling material (M).;7. Impeller according to claim 1, wherein under said aerodynamic guide device (13) is connected an inner central element (21) to facilitate the manufacturing process of said impeller.;8. Impeller according to claim 7, wherein said central member (21) is surrounded by at least one of said following elements: the fourth, fifth, sixth and seventh fiber element (4, 5, 6, 7).;9. Impeller according to any of claims 1-8, wherein said fabric elements (1A, 1B, 1C, 4, 5, 6, 7, 37) are made of unidirectional or multidirectional fibers arranged substantially secured along the high anisotropy at least preferential direction.;10. A turbomachine comprising at least one centrifugal impeller according to one of claims 1-9.