Nuovo Pignone Tecnologie Srl

Nuovo Pignone Srl

Alberto Guglielmo

Francesco Cangioli

Giuseppe Sassanelli

Angelo Grimaldi

Vittorio Michelassi

Daniele Panara

Giuseppe Vannini

Marco Formichini

Lorenzo Toni

Massimiliano Tempestini

Dario Matina

Paolo Romanello

Stefano Mantellassi

Giuseppe Gatta

Andrea Panizza

Domenico Berterame

A return channel for a centrifugal turbo machine. The return channel includes a plurality of return channel vanes, arranged around a return channel axis. Each return channel vane includes: a leading edge at a first distance from the return channel axis, a trailing edge at a second distance from the return channel axis, the second distance being smaller than the first distance. A respective flow passage is defined between each pair of adjacently arranged return channel vanes. The return channel vanes are arranged with a non-constant pitch around the return channel axis.

Return channel with non-constant return channel vanes pitch and centrifugal turbomachine including said return channel

A hydrogen production plant, to produce hydrogen having a compressing assembly, for increasing the pressure of the hydrogen. The compressing assembly has at least one barrel compressor and at least one integrally geared centrifugal compressor. Also disclosed are methods of compressing hydrogen.

Hydrogen compressing assembly, hydrogen production plant, and compressing method

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 lock the rotor segments to one another and to the tie rod. At least one intermediate support member is arranged in an intermediate position between the two axial ends of the tie rod and between the tie rod and one of the rotor segments.

Turbomachine rotor with stacked impellers and turbomachine

A method for stabilizing transversal oscillations of a rotor including the steps of acquiring a first signal representing a value of transversal oscillations of a rotor; estimating a value of a thermal gradient from the first signal; computing a value of an actuation parameter from the value of thermal gradient; emitting an actuation signal representing the value of the actuation parameter.

Method for stabilizing transversal oscillations of a rotor

A casing for a rotating machine includes an inner surface delimiting an inner volume for housing a rotor of the rotating machine; a first and a second shell that are joined together in a dividable manner, the first and second shell respectively comprising a first and a second split flange having a first and a second split surface contacting each other when the shells are joined together; a plurality of holes on the first and second split flange passing through the first and second split surface for housing a plurality of bolts; a first groove connecting the plurality of holes; a second groove between the first groove and the inner surface of the casing; a first duct and a second duct for circulating a fluid to and from the first and second grooves, respectively.

Casing for a rotating machine and rotating machine including such casing

Growing community of inventors

Florence, Italy

Alberto Guglielmo