Nuovo Pignone Srl

Nuovo Pignone Tecnologie Srl

Michelangelo Bellaci

Massimo Giannozzi

Iacopo Giovannetti

Andrea Massini

Lorenzo Cosi

Gianfranco Maffulli

Nicola Ciarla

The impeller includes a main body with a root, a shroud and a plurality of blades connecting the root and the shroud. Protection elements are associated to the blades and constitute at least the front part of the blades. The protection elements may consist of separate bodies or may be grouped together to form one or more protection bodies. In an embodiment, the material of the protection elements is different from the material of the main body, and may be, for example, a cobalt base alloy having a chromium content greater than 20% or nickel base alloy having a chromium content greater than 12%.

Impeller with protection elements and centrifugal compressor

Growing community of inventors

Florence, Italy

Michelangelo Bellaci