Nuovo Pignone Tecnologie Srl

Vetco Gray Scandinavia As

Matteo Dozzini

Massimiliano Ortiz Neri

Manuele Bigi

Duccio Fioravanti

Massimiliano Borghetti

Francesco Cangioli

Vittorio Michelassi

Giacomo Landi

Giuseppe Sassanelli

A compressor or pump stage is provided. The compressor or pump stage at least comprising a central shaft and at least one rotor, wherein an axis of rotation of the at least one rotor is the central shaft, wherein at least two axial thrust bearings are arranged axially remote from each other and being associated with each of the at least one rotor and at least two radial bearings arranged between the at least two axial thrust bearings and the at least one rotor comprises a number, n, of rows of impellers arranged at an outer perimeter of the at least one rotor with an axial distance between neighbouring rows of impellers, where n={2, 3, 4 . . . }

Arrangement for pressurizing of fluid

A compressor or pump stage is provided. The compressor or pump stage at least comprising a central shaft () and one rotor (), where the axis of rotation of the rotor () is the central shaft () and where the rotor comprises a number, n, of rows of impellers () arranged at an outer perimeter of the rotor with an axial distance between neighbouring rows of impellers (), where n={2, 3, 4 . . . }.

The centrifugal compressor comprises a casing and a rotor arranged in the casing and configured to rotate around a vertical rotation axis. The rotor comprises at least one impeller having an impeller suction side and an impeller delivery side. The compressor includes a gas inlet and a gas outlet, as well as a gas flow path extending from the gas inlet to the gas outlet. An inlet plenum extends from the gas inlet towards the impeller suction side. At least one suction tube having a lower suction end and an upper discharge end is arranged such that the lower suction end thereof is arranged at a bottom of the inlet plenum. The suction tube extends upwardly towards the impeller suction side.

Compressor with a system for removing liquid from the compressor

According to one aspect of the present disclosure, a turbo-compressor () is provided. The turbo-compressor () includes: a rotor assembly () extending in an axial direction A and comprising at least one impeller () configured for pressurizing a gas; a magnetic bearing () supporting the rotor assembly () on a high-pressure side () of the at least one impeller (); and a cooling passage () configured for directing a first portion of the pressurized gas (P) through a bearing gap () of the magnetic bearing () for cooling the magnetic bearing (). According to a further aspect, a method of operating a turbo-compressor is described.

Turbo-compressor and method of operating a turbo-compressor

A magnetic bearing for a turbomachine includes a stator fixable to a structure of a turbomachine; a rotor magnetically coupled to the stator and defining a rotation axis, the rotor having a front central surface, a rear central surface opposite to the front central surface and an external surface with respect to the rotation axis; the rotor is provided with an internal channel configured to displace cooling fluid.

Magnetic bearing for a turbomachine

A compressor has a lower inlet with an intake plenum and an upper outlet with a discharge scroll; the compressor includes a plurality of drainage pipes ending at the intake plenum.

Centrifugal compressor without external drainage system, motorcompressor and method of avoiding external drainage in a compressor

According to one aspect of the present disclosure, a turbomachine () is provided. The turbomachine includes: a rotor extending in an axial direction and comprising a driven side configured to be connected to a driving unit and a second side opposite the driven side; a housing extending around at least a portion of the rotor, wherein a main flow path for a process fluid extends between the rotor and the housing; a sealing arrangement, particularly a dry gas seal, configured for sealing a gap between the rotor and the housing at the driven side of the rotor; and a first magnetic bearing supporting the second side of the rotor. A fluid passage for a portion of the process fluid extends from the main flow path through a bearing gap of the first magnetic bearing. According to a further aspect, a method of operating a turbomachine is described.

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Torgiano, Italy

Matteo Dozzini