GIRANTE CENTRIFUGA DEL TIPO CHIUSO PER TURBOMACCHINE, COMPONENTE PER TALE GIRANTE, TURBOMACCHINA PROVVISTA DI TALE GIRANTE E METODO DI REALIZZAZIONE DI TALE GIRANTE

摘要

An impeller for a turbo-machine is provided. The impeller includes a metallic base having a back surface and a front surface opposite to the back surface; at least one blade extending on the front surface of the metallic base; a composite shroud attached to the at least one blade such that plural closed paths are formed by the front surface of the metallic base, the at least one blade and the composite shroud; and a connector configured to attach the composite shroud to the metallic base or the at least one blade.