US Patent Issued to Nuovo Pignone Tecnologie-S.R.L. on Feb. 4 for "Turbomachine rotor with stacked impellers and turbomachine" (Italian Inventors)

ALEXANDRIA, Va., Feb. 5 -- United States Patent no. 12,215,708, issued on Feb. 4, was assigned to Nuovo Pignone Tecnologie-S.R.L. (Florence, Italy).

"Turbomachine rotor with stacked impellers and turbomachine" was invented by Francesco Cangioli (Florence, Italy), Alberto Guglielmo (Florence, Italy), Giuseppe Vannini (Florence, Italy), Marco Formichini (Florence, Italy), Massimiliano Tempestini (Florence, Italy) and Dario Matina (Florence, Italy).

According to the abstract* released by the U.S. Patent & Trademark Office: "The rotor comprises a plurality of rotor segments arranged axially adjacent to one another. A tie rod extends through the rotor segments. Opposed first and second locking members arranged at the axial ends of the tie rod ...