Nuovo Pignone Srl

Nuovo Pignone Tecnologie Srl

Matteo Dall'ara

Matteo Berti

Alberto Scotti Del Greco

Paolo Del Turco

Silvio Giachetti

Sergio De Franciscis

Marco Palladino

Federico Florindo

Michael Catanzaro

Paolo Delturco

Marco Rizzelli

Matteo Camprini

Filippo Cionini

Sergio Mannucci

The present disclosure relates to a turbomachine assembly, which includes a shaft, a radial gas expander supported on the shaft between a first bearing and a second bearing, and a compressor supported on the shaft in overhung position adjacent to one or the other of the first and second bearings. The compressor includes a plurality of movable inlet nozzles and the radial gas expander includes a plurality of movable guide vanes.

Turbomachine assembly

A power converting system is described, comprising a source of waste heat and an organic Rankine cycle system. The organic Rankine cycle system in turn comprises at least a turboexpander, at least a rotating load mechanically coupled to the turboexpander and driven thereby, and a variable-speed mechanical coupling between the turboexpander and the rotating load.

Compressor driven by ORC waste heat recovery unit and control method

A turboexpander-generator unit including a casing with a gas inlet and a gas outlet. The unit further comprises a turboexpander having a turboexpander rotor mounted on a shaft supported for rotation in the casing, and an electric generator arranged in the casing and comprised of a generator stator and a generator rotor mounted on the shaft, for co-rotation with the turboexpander rotor. The unit also comprises a plurality of bearings configured and arranged for rotatingly supporting the shaft in the casing. A gas flow path from the gas inlet to the gas outlet, which extends through the turboexpander and the electric generator. Compressed working gas expands in the turboexpander and generates mechanical power for rotating the generator rotor. The expanded working gas from the turboexpander flow through the electric generator and removes heat therefrom. The bearings comprise gas-lubricated bearings, lubricated with the working gas.

Integrated turboexpander-generator with gas-lubricated bearings

Growing community of inventors

Florence, Italy

Matteo Dall'ara