Patents by Inventor Vittorio Michelassi

Vittorio Michelassi 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).

  • Publication number: 20140020388
    Abstract: In one embodiment, a power plant is provided. The power plant includes a power generation system configured to produce an exhaust; a CO2 separation system configured to receive the exhaust and configured to remove CO2 therefrom, the CO2 separation system being configured to produce a CO2 stream; a heat recovery steam generator (HRSG) operatively coupled to the power generation system and the CO2 separation system; and a CO2 compression system configured to receive the CO2 stream and configured to produce a CO2 product stream.
    Type: Application
    Filed: July 19, 2012
    Publication date: January 23, 2014
    Inventors: Miguel Angel Gonzalez Salazar, Parag Prakash Kulkarni, Vittorio Michelassi
  • Publication number: 20130283852
    Abstract: A method for separating carbon dioxide (CO2) from a gas stream is provided. The method includes cooling the gas stream in a cooling stage to form a cooled gas stream and cooling the cooled gas stream in a converging-diverging nozzle to form one or both of solid CO2 and liquid CO2. The method further includes separating at least a portion of one or both of solid CO2 and liquid CO2 from the cooled gas stream in the converging-diverging nozzle to form a CO2-rich stream and a CO2-lean gas stream. The method further includes expanding the CO2-lean gas stream in an expander downstream of the converging-diverging nozzle to form a cooled CO2-lean gas stream and circulating at least a portion of the cooled CO2-lean gas stream to the cooling stage for cooling the gas stream. Systems for separating carbon dioxide (CO2) from a CO2 stream are also provided.
    Type: Application
    Filed: April 26, 2012
    Publication date: October 31, 2013
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Nikolett Sipöcz, Jassin Marcel Fritz, Miguel Angel Gonzalez Salazar, Rene du Cauze de Nazelle, Roger Allen Shisler, Vitali Victor Lissianski, Vittorio Michelassi
  • Publication number: 20130282307
    Abstract: System and method for automatically determining a final set of tuning/calibration parameters for designing a new turbo-machinery. The method includes inputing an initial set of tuning/calibration parameters; calculating family turbo-machinery quantities based on the initial set of tuning/calibration parameters; comparing the calculated family turbo-machinery quantities with measured quantities and calculating a first error between the calculated family quantities and the measured quantities; calculating a second error between the initial set of tuning/calibration parameters and default values of the turbo-machine variables; forming a modified objective function that includes both the first and second errors; during an iterative process, varying the initial set of tuning/calibration parameters in such a way that the final set of tuning/calibration parameters is found; and storing in a database the final set of tuning/calibration parameters for the family.
    Type: Application
    Filed: June 22, 2010
    Publication date: October 24, 2013
    Applicant: NUOVO PIGNONE, S.P.A.
    Inventors: Omar Mohamed El Shamy, Nidal Awni Ghizawi, Denis Guillaume Jean Guenard, Vittorio Michelassi, Sivasubramaniyan Sankaran, Clary Susanne Ingeborg Svendotter
  • Publication number: 20130247570
    Abstract: A waste heat recovery system includes a heat recovery cycle system coupled to at least two separate heat sources having different temperatures. The heat recovery cycle system is coupled to a first heat source and at least one second heat source. The heat recovery cycle system is configured to circulate a working fluid. The at least one second heat source includes a lower temperature heat source than the first heat source. The working fluid is circulatable in heat exchange relationship through a first heat exchange unit, a second heat exchange unit for heating the working fluid in the heat recovery cycle system. The first heat exchange unit is coupled to the at least one second heat source to heat at least a portion of a cooled stream of working fluid to a substantially higher temperature.
    Type: Application
    Filed: March 24, 2012
    Publication date: September 26, 2013
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Matthew Alexander Lehar, Vittorio Michelassi
  • Publication number: 20130142628
    Abstract: A sealing system for a centrifugal compressor includes a stator having a seal, a seal disposed in the seal housing and having an abradable portion along an inner circumference, a rotor having a plurality of rotor teeth configured to rotate within the inner circumference of the seal and configured to create rub grooves within the abradable portion, and a first spring disposed between the stator and the seal and configured to facilitate axial movement of the seal relative to the seal housing.
    Type: Application
    Filed: December 7, 2010
    Publication date: June 6, 2013
    Inventors: Nuo Sheng, Roderick Mark Lusted, Vittorio Michelassi
  • Publication number: 20130121812
    Abstract: The present application provides a wet gas compression system for a wet gas flow having a number of liquid droplets therein. The wet gas compression system may include a pipe, a compressor in communication with the pipe, and a thermoacoustic resonator in communication with the pipe so as to break up the liquid droplets in the wet gas flow.
    Type: Application
    Filed: November 14, 2011
    Publication date: May 16, 2013
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Christian Vogel, Vittorio Michelassi, Renè de Nazelle
  • Publication number: 20130081409
    Abstract: In accordance with one aspect of the present invention, methods of condensing carbon dioxide (CO2) from a CO2 stream are provided. The method includes (i) compressing and cooling the CO2 stream to form a partially cooled CO2 stream, wherein the partially cooled CO2 stream is cooled to a first temperature. The method includes (ii) cooling the partially cooled CO2 stream to a second temperature by magneto-caloric cooling to form a cooled CO2 stream. The method further includes (iii) condensing at least a portion of CO2 in the cooled CO2 stream to form a condensed CO2 stream.
    Type: Application
    Filed: September 30, 2011
    Publication date: April 4, 2013
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Miguel Angel Gonzalez Salazar, Vittorio Michelassi, Christian Vogel
  • Publication number: 20130031902
    Abstract: Various methods and systems are provided for an engine. In one example, the system includes a two-stage turbocharger which has first turbocharger with a first turbine and a first compressor and a second turbocharger with a second turbine and a second compressor, where the first turbine and the second turbine are arranged in parallel and the first compressor and the second compressor are arranged in series. The system may include a duct coupling turbine inlets of the first and second turbine, and a valve coupled between the duct and the inlet of the first turbine to throttle flow to first turbine.
    Type: Application
    Filed: August 3, 2011
    Publication date: February 7, 2013
    Inventors: Rodrigo Rodriguez Erdmenger, Douglas C. Hofer, Jassin Fritz, Alberto Scotti Del Greco, Georgios Bikas, Mark Stablein, Sebastian Walter Freund, Vittorio Michelassi
  • Publication number: 20130004305
    Abstract: A machine having a fixed part including a portion with a smooth surface is provided. The machine also includes a rotating part configured to rotate relative to the fixed part, the rotating part directly facing the portion of the fixed part, and plural ridges formed on the portion of the fixed part directly facing the rotating part, the plural ridges comprising an abradable material, wherein the abradable material is configured to be inoperable at temperatures above about 1000° C.
    Type: Application
    Filed: October 12, 2010
    Publication date: January 3, 2013
    Inventors: Lacopo Giovannetti, Vittorio Michelassi, Massimo Giannozzi, Farshad Ghasripoor, Dennis M. Gray, Nuo Sheng
  • Publication number: 20120227400
    Abstract: A turbine system for a multistage turbocharger and a method for utilizing the same are disclosed. The turbine system includes a high pressure turbine having an inlet for receiving a flow of fluid, and an outlet for passing the flow on extraction of work from the high pressure turbine. The system further includes a low pressure turbine, having an inlet for receiving a flow of fluid from the high pressure turbine. A diffuser connects the outlet of the high pressure turbine and the inlet of the low pressure turbine. The system also includes a bypass channel for bypassing a portion of the flow around the high pressure turbine, from upstream of the high pressure turbine to downstream of the high pressure turbine. The system includes an injector to input the bypass flow in the diffuser in a manner to reduce flow separation in the diffuser.
    Type: Application
    Filed: March 9, 2011
    Publication date: September 13, 2012
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Rodrigo Rodriguez Erdmenger, Alberto Scotti Del Greco, Vittorio Michelassi, Kendall Roger Swenson, Daniel Edward Loringer, Mark Thomas Stablein, Lukas William Johnson
  • Publication number: 20120201660
    Abstract: The present application provides for a wet gas compressor system. The wet gas compressor system may include a wet gas compressor with an inlet section. A variable cross-section nozzle may be positioned about the inlet section.
    Type: Application
    Filed: February 4, 2011
    Publication date: August 9, 2012
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Christian Aalburg, Alexander Simpson, Vittorio Michelassi, Ismail Sezal
  • Publication number: 20120131897
    Abstract: The present application provides a gas compression system for use with a gas stream. The gas compression system may include a number of compressors for compressing the gas stream, one or more ejectors for further compressing the gas stream, a condenser positioned downstream of the ejectors, and a waste heat source. A return portion of the gas stream may be in communication with the ejectors via the waste heat source.
    Type: Application
    Filed: November 30, 2010
    Publication date: May 31, 2012
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Miguel Angel Gonzalez, Matthias Finkenrath, Vittorio Michelassi
  • Publication number: 20120107106
    Abstract: A supersonic compressor system. The supersonic compressor system includes a casing that defines a cavity that extends between a fluid inlet and a fluid outlet, and a first drive shaft that is positioned within the cavity. A centerline axis extends along a centerline of the first drive shaft. A supersonic compressor rotor is coupled to the first drive shaft and is positioned in flow communication between the fluid inlet and the fluid outlet. The supersonic compressor rotor includes at least one supersonic compression ramp that is configured to form at least one compression wave for compressing a fluid. A centrifugal compressor assembly is positioned in flow communication between the supersonic compressor rotor and the fluid outlet. The centrifugal compressor assembly is configured to compress fluid received from the supersonic compressor rotor.
    Type: Application
    Filed: October 28, 2010
    Publication date: May 3, 2012
    Inventors: Douglas Carl Hofer, Vittorio Michelassi
  • Publication number: 20120087808
    Abstract: The present disclosure is directed to liquid ring compressors that can be employed to remove liquid from a wet gas and/or to compress a wet gas. In one embodiment, a liquid ring compressor includes a shaft, a main body inner casing disposed about the shaft to form a chamber between the shaft and the main body inner casing, and an inlet configured to remove a portion of liquid from a wet gas and to direct the wet gas into the chamber. The liquid ring compressor also includes an impeller rotatably disposed within the chamber and configured to direct a remaining portion of the liquid in the wet gas out towards the main body inner casing to form a liquid ring within the chamber to compress the wet gas.
    Type: Application
    Filed: October 11, 2010
    Publication date: April 12, 2012
    Applicant: General Electric Company
    Inventors: Christian Aalburg, Alexander Kimberley Simpson, John Daniel Friedemann, Vittorio Michelassi
  • Publication number: 20120057965
    Abstract: In one embodiment, a turbomachine for imparting energy to a multiphase fluid is provided. The turbomachine comprises a casing having an inlet and an outlet; an axial stage part comprising at least one axial stage; a mixed-flow stage part comprising at least one mixed-flow stage fluidly connected to the axial stage part; and a centrifugal stage part comprising at least one centrifugal stage fluidly connected to the mixed-flow stage part. The axial stage is defined by an angle between an axial impeller outlet flow and an axis parallel to a rotational axis of the shaft having a value between 0° and 5°, the mixed-flow stage by an angle having a value between 5° and 80°, and the centrifugal stage by an angle having a value between 80° and 90°.
    Type: Application
    Filed: August 29, 2011
    Publication date: March 8, 2012
    Inventors: Lorenzo BERGAMINI, Vittorio Michelassi