摘要:
A centrifugal impeller for a turbomachine characterized in that it comprises a plurality of aerodynamic vanes ( 13), each of them (1 3) having internal walls on which is associated a fabric element (I A; S B; 1 C; 4: 5: 6; 7; 37).
摘要:
A mold to build a centrifugal impeller for a turbomachine characterized in that it comprises at least an annular insert ( 1 10) able to reproduce an annular assembly of aerodynamic vanes (13) of a finished impeller; said annular insert (110) being used to form aerodynamic vanes (13) and such that it can be readily removed from said mold during the molding process.