Patents by Inventor Manuele Bigi

Manuele Bigi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 9810230
    Abstract: An impeller for a turbo-machine is provided. The impeller includes a metallic base having a back surface and a front surface opposite to the back surface; at least one blade extending on the front surface of the metallic base; a composite shroud attached to the at least one blade such that plural closed paths are formed by the front surface of the metallic base, the at least one blade and the composite shroud; and a connector configured to attach the composite shroud to the metallic base or the at least one blade.
    Type: Grant
    Filed: March 10, 2015
    Date of Patent: November 7, 2017
    Inventors: Iacopo Giovannetti, Massimo Giannozzi, Dino Bianchi, Leonardo Tognarelli, Manuele Bigi, Andrea Massini
  • Publication number: 20170241433
    Abstract: The turbomachine assembly includes a first turbomachine having an inlet, an outlet and a rotary shaft, a second turbomachine having an inlet, an outlet and a rotary shaft, a transfer duct fluidly connecting the outlet of the first turbomachine to the inlet of the second turbomachine, and a casing housing the turbomachines and the transfer duct; the turbomachines are located adjacent to each other so that the outlet of the second turbomachine is close to the outlet of the first turbomachine and the inlet of the second turbomachine is remote from the outlet of the first turbomachine; the outlet of the second turbomachine has an end portion shaped like a cochlea (i.e. a spiral duct); the transfer duct has an annular shape, and surrounds the end portion of the outlet of the second turbomachine.
    Type: Application
    Filed: October 16, 2015
    Publication date: August 24, 2017
    Inventors: Manuele BIGI, Giuseppe SASSANELLI, Andrea MASSINI, Luciano MEI, Franco FROSINI
  • Publication number: 20170191487
    Abstract: A compressor end head for providing a thermal barrier to a mechanical seal includes an inner end head having an inner end head opening, inner end head grooves in the inner end head opening, configured to place and seal an end portion of a compressor shaft; and an outer end head having an outer end head opening configured to enclose the inner end head.
    Type: Application
    Filed: March 17, 2017
    Publication date: July 6, 2017
    Inventors: Giusepe Sassanelli, Manuele Bigi, Suresh Devenbu
  • Patent number: 9631637
    Abstract: A compressor end head for providing a thermal barrier near a mechanical seal includes an inner end head and an outer end head. The outer end head includes an opening in the center for enclosing the inner end head, an outlet and grooves alongside surfaces radially adjacent the opening. The inner end head has an opening in the center, an inlet, grooves in the opening for enclosing an end portion of a compressor shaft and a flow path along an outer surface.
    Type: Grant
    Filed: December 3, 2010
    Date of Patent: April 25, 2017
    Inventors: Giusepe Sassanelli, Manuele Bigi, Suresh Devanbu
  • Publication number: 20170082033
    Abstract: A fuel supply system is provided having a first fuel gas compressor configured to be driven by a motor and a second fuel gas compressor configured to be driven by a shaft of a gas turbine system. The first fuel gas compressor and the second fuel gas compressor are configured to supply a pressurized fuel flow to a combustor of the gas turbine system, and the first fuel gas compressor and the second fuel gas compressor are coupled to one another in series.
    Type: Application
    Filed: June 10, 2014
    Publication date: March 23, 2017
    Inventors: Wenjie Wu, Ping Yu, Pradeep Kumar Diddi, Manuele Bigi, David August Snider, Manuel Moises Cardenas
  • Publication number: 20160319820
    Abstract: A set of impellers that are axially adjacent to each other and that have respective axial through holes are assembled. At least a first and a second axial tie rods are used. At least one connection element being axially adjacent to two impellers respectively at its two sides and having an axial through hole is provided. The connection element is used for securing, at one side of its axial through hole, an end of the first axial tie rod and, at the other side of its axial through hole, an end of the second axial tie rod. Typically, the connection element is one of the impellers of the set.
    Type: Application
    Filed: December 16, 2014
    Publication date: November 3, 2016
    Inventors: Kalyan Kumar VENKATACHALAM, Lakshmanudu KURVA, Manuele BIGI
  • Publication number: 20160238015
    Abstract: 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.
    Type: Application
    Filed: October 10, 2014
    Publication date: August 18, 2016
    Inventors: Luciano MEI, Massimiliano BORGHETTI, Massimo PINZAUTI, Manuele BIGI, Luca INNOCENTI, Alberto CECCHERINI, Marco FORMICHINI, Rajesh MAVURI
  • Publication number: 20160215817
    Abstract: A magnetic bearing comprising a stator magnetic circuit secured to a stationary support device, the stator magnetic circuit comprising at least one coil and a ferromagnetic body placed in a protective annular support, the protective annular support leaving uncovered a surface of the ferromagnetic body and a surface of the at least one coil. The bearing also comprises at least one annular plug placed on the surface of the at least one coil which is left uncovered by the protective annular support, and the annular plug and the surface of the ferromagnetic body which is left uncovered by the protective annular support are coated by a protective layer.
    Type: Application
    Filed: December 17, 2013
    Publication date: July 28, 2016
    Inventors: Luciano MEI, Duccio FIORAVANTI, Marco ROMANELLI, Marco ANSELMI, Manuele BIGI
  • Publication number: 20160195100
    Abstract: An impeller wheel assembly for a radial rotating machine, comprises a bladed hub portion of an impeller wheel, with a first radially outward facing, fluid deflecting surface having a curvature profile designed to deflect an axial fluid flow into a radial centrifugal flow, and comprising a deflector portion with a second radially outward facing, fluid deflecting surface. The second radially outward facing surface has a curvature profile designed to deflect a radial centripetal fluid flow into an axial fluid flow.
    Type: Application
    Filed: December 18, 2013
    Publication date: July 7, 2016
    Inventors: Thomas ALBAN, Sylvain GUILLEMIN, Manuele BIGI, Guiseppe IURISCI, Stefano FALOMI
  • Publication number: 20160123388
    Abstract: A rotating machine comprises a shaft, a casing, at least one main magnetic bearing connected to the shaft for rotatably supporting said shaft inside the casing, at least one first and one second auxiliary rolling bearings positioned between the shaft and the casing to support axial and radial loads, and first and second axial abutment means positioned on the shaft to transmit axial loads to inner rings of the rolling bearings. The machine further comprises a spacer axially positioned between facing faces of the inner rings of said rolling bearings for the transmission of the axial loads between said inner rings, and at least a first axial retaining means positioned on the casing and located axially between facing faces of the outer rings for the transmission of the axial loads between at least one of said outer rings and the casing.
    Type: Application
    Filed: May 28, 2014
    Publication date: May 5, 2016
    Applicant: Nuovo Pignone Srl
    Inventors: Stefano FALOMI, Manuele BIGI, Duccio FIORAVANTI, Luciano MEI
  • Publication number: 20160108967
    Abstract: A magnetic bearing assembly for a rotary machine having a rotor shaft, comprising a stator magnetic circuit secured to a stationary support element and comprising at least one body of ferromagnetic material and at least one coil, both being fitted in a protective annular housing leaving uncovered a surface of revolution of said ferromagnetic body and a surface of revolution of said one coil, the magnetic bearing assembly comprising an annular thrust collar secured to the rotor shaft and radially extending towards the stator magnetic circuit by a radial portion, said radial portion facing the uncovered surfaces of said ferromagnetic body and said one coil. The annular thrust collar comprises at least one flow channel.
    Type: Application
    Filed: May 28, 2014
    Publication date: April 21, 2016
    Inventors: Andrea MASSINI, Luca LOMBARDI, Manuele BIGI, Giuseppe SASSANELLI, Luciano MEI
  • Publication number: 20160102705
    Abstract: A rotating machine comprises a shaft, a casing, at least one main magnetic bearing connected to the shaft for rotatably supporting the shaft inside the casing, at least one auxiliary radial rolling bearing and at least one auxiliary axial rolling bearing which are disposed between the shaft and the casing to respectively support radial loads only and axial loads only.
    Type: Application
    Filed: May 29, 2014
    Publication date: April 14, 2016
    Inventors: Luciano MEI, Manuele BIGI, Giuseppe SASSANELLI
  • Publication number: 20160102712
    Abstract: A magnetic bearing assembly for a rotary machine, having a rotor circuit and a stator magnetic circuit secured to a stationary support element having at least one body of ferromagnetic material and at least one coil, both being fitted in a protective annular housing leaving uncovered a surface of revolution of said ferromagnetic body and a surface of revolution of said one coil facing a surface of revolution of the rotor circuit. The bearing assembly comprises at least one row of blades secured on the rotor circuit.
    Type: Application
    Filed: May 23, 2014
    Publication date: April 14, 2016
    Inventors: Andrea MASSINI, Luciano MEI, Manuele BIGI
  • Publication number: 20150345555
    Abstract: A jacketed magnetic bearing for a rotary machine having a rotor. The jacketed magnetic bearing comprises a stator magnetic circuit secured to a stationary support device, the stator magnetic circuit comprising at least one coil and a ferromagnetic body placed in a metallic protective enclosure. Said protective enclosure comprises an annular support and an annular jacket, the annular support and the annular jacket being welded together. The annular jacket comprises magnetic material and is coated by a protective layer.
    Type: Application
    Filed: December 16, 2013
    Publication date: December 3, 2015
    Inventors: Manuele BIGI, Luciano MEI, Marco ROMANELLI, Duccio FIORAVANTI, Marco ANSELMI
  • Publication number: 20150322952
    Abstract: A centrifugal compressor for processing a wet gas. The centrifugal compressor includes: a casing; and least one compressor stage comprising at least one impeller rotatingly arranged in the casing and provided with an impeller hub and a plurality of impeller blades, each impeller blade having a suction side and a pressure side. The at least one compressor stage comprises at least one droplet breaking arrangement configured for promoting breakup of liquid droplets flowing through the compressor stage.
    Type: Application
    Filed: June 18, 2013
    Publication date: November 12, 2015
    Inventors: Matteo BERTONERI, Massimo CAMATTI, Manuele BIGI, Luigi PODESTA'
  • Publication number: 20150322960
    Abstract: An impeller for a turbo-machine is provided. The impeller includes a metallic base having a back surface and a front surface opposite to the back surface; at least one blade extending on the front surface of the metallic base; a composite shroud attached to the at least one blade such that plural closed paths are formed by the front surface of the metallic base, the at least one blade and the composite shroud; and a connector configured to attach the composite shroud to the metallic base or the at least one blade.
    Type: Application
    Filed: March 10, 2015
    Publication date: November 12, 2015
    Inventors: Iacopo GIOVANNETTI, Massimo GIANNOZZI, Dino BIANCHI, Leonardo TOGNARELLI, Manuele BIGI, Andrea MASSINI
  • Publication number: 20150316064
    Abstract: 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.
    Type: Application
    Filed: December 16, 2013
    Publication date: November 5, 2015
    Applicant: Nuovo Pignone Srl
    Inventors: Bhaskara KOSAMANA, Manuele BIGI, Kalyankumar V, Lakshmanudu KURVA, Massimiliano BORGHETTI, Marco FORMICHINI
  • Publication number: 20150240833
    Abstract: A centrifugal compressor including: a casing; at least one impeller supported for rotation in the casing and provided with a hub, a shroud and an impeller eye; an impeller-eye sealing arrangement, for sealing the impeller in the region of said impeller eye. The centrifugal compressor further includes at least one cooling-medium portlocated at the impeller-eye sealing arrangement, arranged for delivering a cooling medium around the impeller eye.
    Type: Application
    Filed: June 18, 2013
    Publication date: August 27, 2015
    Applicant: Nuovo Pignone Srl
    Inventors: Manuele Bigi, Massimo Camatti, Bhaskara Kosamana, Rajesh Mavuri, Massimiliano Borghetti, Rajesh Mamidi
  • Patent number: 8998581
    Abstract: An impeller for a turbo-machine and is provided. The impeller includes a metallic base having a central hole, a back surface and a front surface opposite to the back surface; at least one blade extending on the front surface of the metallic base; a composite shroud attached to the at least one blade such that plural closed paths or vanes are formed by the front surface of the metallic base, the at least one blade and the composite shroud; and a connector configured to attach the composite shroud to the metallic base or the at least one blade.
    Type: Grant
    Filed: May 7, 2010
    Date of Patent: April 7, 2015
    Assignee: Nuovo Pignone S.p.A.
    Inventors: Iacopo Giovannetti, Massimo Giannozzi, Dino Bianchi, Leonardo Tognarelli, Manuele Bigi, Andrea Massini
  • Publication number: 20130058769
    Abstract: A compressor end head for providing a thermal barrier near a mechanical seal includes an inner end head and an outer end head. The outer end head includes an opening in the center for enclosing the inner end head, an outlet and grooves alongside surfaces radially adjacent the opening. The inner end head has an opening in the center, an inlet, grooves in the opening for enclosing an end portion of a compressor shaft and a flow path along an outer surface.
    Type: Application
    Filed: December 3, 2010
    Publication date: March 7, 2013
    Inventors: Giusepe Sassanelli, Manuele Bigi, Suresh Devanbu