Nuovo Pignone Spa

Nuovo Pignone Tecnologie Srl

Nuovo Pignone Srl

Giuseppe Vannini

Luciano Mei

Francesco Cangioli

Franco Frosini

Massimo Pinzauti

Lorenzo Naldi

Matteo Bertoneri

Alberto Guglielmo

Marco Formichini

Massimiliano Tempestini

Nicola Mitaritonna

Dario Matina

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 wet-gas centrifugal compressor is disclosed. The compressor comprises a compressor casing and at least one impeller arranged in the compressor casing for rotation around a rotation axis. A stationary diffuser is arranged in the compressor casing and extends around the impeller. The diffuser has a curved end portion with a radially inner curved wall and a radially outer curved wall. A plurality of dry-gas extraction holes is provided, ending at a plurality of respective inlet ports arranged around the rotation axis and on the inner curved wall of the curved end portion of the diffuser. Each dry-gas extraction hole extends from the respective inlet port towards the rotation axis and is inclined over a radial direction, such that each dry-gas extraction hole is oriented in a counter-flow direction with respect to a direction of the gas flow in the curved end portion of the diffuser.

Extracting dry gas from a wet-gas compressor

A seal for a turbo machine is provided. The seal includes a plurality of honeycomb cells, at least one circumferential groove within the plurality of honeycomb cells, and at least one swirl brake within the at least one groove.

Honeycomb seal and method

A compressor unit for processing a working fluid comprising a compressor inside a housing to compress the working fluid wherein a collection chamber is fluidly coupled with a working fluid inlet of said housing.

Compressor unit and a method to process a working fluid

A centrifugal compressor is disclosed. The centrifugal compressor comprises a first duct configured to receive a process gas, an impeller connected to the first duct and configured to compress the process gas, wherein the impeller has an outer surface, a first seal comprising, a first plurality of swirl brakes configured to have a tooth shape to reduce the inlet seal swirl of a flow of the process gas at an entrance to the first seal, wherein each swirl brake is disposed at a leading edge of the first seal and is configured to have a gap between the first plurality of swirl brakes and the outer surface of the impeller seal. A seal including a plurality of swirl brakes for reducing an inlet swirl and a method of manufacturing such a seal are disclosed.

Systems and methods for swirl brake tapering

Growing community of inventors

Florence, Italy

Giuseppe Vannini