Nuovo Pignone Tecnologie Srl

Nuovo Pignone Srl

Marco Formichini

Manuele Bigi

Massimiliano Borghetti

Dario Matina

Luciano Mei

Giuseppe Sassanelli

Giuseppe Iurisci

Francesco Cangioli

Angelo Grimaldi

Massimo Pinzauti

Rajesh Mavuri

Giuseppe Vannini

Alberto Guglielmo

Massimiliano Tempestini

Bhaskara Kosamana

Alberto Ceccherini

Lakshmanudu Kurva

Davide Becherucci

Antonio Cristallo

Luca Innocenti

Kalyankumar V

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

Compression train for a natural gas liquefaction process. The compression train includes a driver machine and only one centrifugal compressor machine driven in rotation by the driver machine; the compressor is configured to compress a refrigerant gas with a molecular weight less than 30 g/mol from a suction pressure to a discharge pressure; the ratio between discharge and suction pressures is higher than 10. A LNG plant including a compression train.

Compression train including one centrifugal compressor and LNG plant

The turbomachine comprises a stationary component, a rotary component, rotatingly supported in the stationary component, and a sealing arrangement between the rotary component and the stationary component. A cooling arrangement is further provided, which is configured and designed for delivering a cooling fluid to the sealing arrangement and removing heat therefrom.

Sealing clearance control in turbomachines

A multi-stage compressor is described, comprising a rotor having a plurality of axially stacked impellers and a tie rod extending through the stacked impellers and holding the impellers together. A gas compression path extends from a compressor inlet to a compressor outlet and through the impellers. A flow channel is provided between the tie rod and the stacked impellers. The flow channel develops along at least a portion of the tie rod. Hot gas is diverted from the compression path and flows through the flow channel to heat the tie rod during startup of the compressor.

Multistage compressor and method for operating a multistage compressor

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Florence, Italy

Marco Formichini