Patents by Inventor Massimiliano Mariotti
Massimiliano Mariotti 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).
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Patent number: 11352952Abstract: The gas turbine engine comprises a gas generator (66), comprised of a compressor section (11), and a power turbine section (65). The power turbine section (65) comprises a power turbine rotor (81) supported by a power turbine shaft (93), which is mechanically uncoupled from the gas generator (66). The power turbine shaft (93) has an axial cavity (511) therein, fluidly coupled to a bearing sump (521) fluidly coupled to the compressor section (11) and housing at least one bearing (106) supporting a shaft of the gas generator (66). An air venting path (527) extends from said axial cavity (511) and leads in a combustion gas flow path (515) downstream of the power turbine rotor (81).Type: GrantFiled: June 14, 2019Date of Patent: June 7, 2022Assignee: NUOVO PIGNONE TECNOLOGIE SRLInventors: Luciano Mei, Francesco Caratelli, Alessandro Russo, Massimiliano Mariotti, Alberto Ceccherini
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Publication number: 20210270184Abstract: The gas turbine engine comprises a gas generator (66), comprised of a compressor section (11), and a power turbine section (65). The power turbine section (65) comprises a power turbine rotor (81) supported by a power turbine shaft (93), which is mechanically uncoupled from the gas generator (66). The power turbine shaft (93) has an axial cavity (511) therein, fluidly coupled to a bearing sump (521) fluidly coupled to the compressor section (11) and housing at least one bearing (106) supporting a shaft of the gas generator (66). An air venting path (527) extends from said axial cavity (511) and leads in a combustion gas flow path (515) downstream of the power turbine rotor (81).Type: ApplicationFiled: June 14, 2019Publication date: September 2, 2021Inventors: Luciano MEI, Francesco CARATELLI, Alessandro RUSSO, Massimiliano MARIOTTI, Alberto CECCHERINI
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Method and apparatus for assembling nozzles between buckets of a turbine, particularly a gas turbine
Patent number: 10851674Abstract: The invention relates to a method and apparatus for assembling nozzles 31 between buckets 41,42 of a turbine, particularly a gas turbine, in which a temporary fixing of the nozzles 31 to the buckets 41,42 during the assembly is provided.Type: GrantFiled: May 6, 2016Date of Patent: December 1, 2020Assignee: NUOVO PIGNONE TECNOLOGIE SRLInventors: Luciano Mei, Marco Listori, Massimiliano Mariotti, Allesandro Giammarci Giammarchi -
Patent number: 10711799Abstract: Systems and methods for maintaining a desired differential pressure between a cooling oil of an electric motor and a process gas working fluid of a compressor connected axially to the electric motor. The cooling oil acts as a coolant for the motor compartment of the electric motor and the gas working fluid acts as a coolant for the rotor compartment of the electric motor. At least one bellow is configured to provide two sealed compartments in a pressure equalizer and a spring means is configured to add a differential pressure to the cooling oil, assuring no leaks between the two fluids flows from the cooling oil to the process gas working fluid and no contact of the process gas working fluid with the electric motor stator, in particular electric motor laminations and electric motor windings.Type: GrantFiled: May 8, 2013Date of Patent: July 14, 2020Assignee: NUOVO PIGNONE SRLInventors: Massimiliano Mariotti, Claudia Cagnarini, Francesco Del Medico
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METHOD AND APPARATUS FOR ASSEMBLING NOZZLES BETWEEN BUCKETS OF A TURBINE, PARTICULARLY A GAS TURBINE
Publication number: 20180142575Abstract: The invention relates to a method and apparatus for assembling nozzles 31 between buckets 41,42 of a turbine, particularly a gas turbine, in which a temporary fixing of the nozzles 31 to the buckets 41,42 during the assembly is provided.Type: ApplicationFiled: May 6, 2016Publication date: May 24, 2018Inventors: Luciano MEI, Marco LISTORI, Massimiliano MARIOTTI, Allesandro Giammarci GIAMMARCHI -
Publication number: 20150093256Abstract: Systems and methods for maintaining a desired differential pressure between a cooling oil of an electric motor and a process gas working fluid of a compressor connected axially to the electric motor. The cooling oil acts as a coolant for the motor compartment of the electric motor and the gas working fluid acts as a coolant for the rotor compartment of the electric motor. At least one bellow is configured to provide two sealed compartments in a pressure equalizer and a spring means is configured to add a differential pressure to the cooling oil, assuring no leaks between the two fluids flows from the cooling oil to the process gas working fluid and no contact of the process gas working fluid with the electric motor stator, in particular electric motor laminations and electric motor windings.Type: ApplicationFiled: May 8, 2013Publication date: April 2, 2015Inventors: Massimiliano Mariotti, Claudia Cagnarini, Francesco Del Medico
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Patent number: 8827636Abstract: A turbomachine includes a compressor having a cartridge that is configured to slide in and out of an external casing. The turbomachine further includes an electrical motor having a motor shaft configured to be connected to the compressor shaft. A conduit is configured to extend through the statoric part of the compressor or the motor, from a first magnetic bearing to the second magnetic bearing. The conduit includes conduit electrical cables provided inside the conduit and extending from a first end of the conduit to a second end of the conduit; and electrical cables connecting one of the first and second magnetic bearings to an external connector via the conduit electrical cables of the conduit.Type: GrantFiled: December 16, 2011Date of Patent: September 9, 2014Assignee: Nuovo Pignone S.p.AInventors: Massimiliano Mariotti, Luciano Mei, Silvio Giachetti
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Patent number: 8313291Abstract: A nozzle segment is disclosed that includes a first platform configured to be connected with a casing of a gas turbine engine, a second platform configured to be connected with the casing, the second platform being disposed apart from the first platform in a radial direction of the gas turbine engine, and a plurality of blades disposed between the first and second platforms and connected thereto, a portion of an inside surface of the first platform or the second platform being scalloped so as to increase a throat area of the nozzle segment in order to increase the nozzle segment's mass flow rate handling capability.Type: GrantFiled: December 19, 2007Date of Patent: November 20, 2012Assignee: Nuovo Pignone, S.p.A.Inventors: Massimiliano Mariotti, Craig Allen Bielek, Michele D'Ercole, Luciano Mei
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Publication number: 20120171021Abstract: A turbomachine includes a compressor having a cartridge that is configured to slide in and out of an external casing. The turbomachine further includes an electrical motor having a motor shaft configured to be connected to the compressor shaft. A conduit is configured to extend through the statoric part of the compressor or the motor, from a first magnetic bearing to the second magnetic bearing. The conduit includes conduit electrical cables provided inside the conduit and extending from a first end of the conduit to a second end of the conduit; and electrical cables connecting one of the first and second magnetic bearings to an external connector via the conduit electrical cables of the conduit.Type: ApplicationFiled: December 16, 2011Publication date: July 5, 2012Inventors: Massimiliano MARIOTTI, Luciano Mei, Silvio Glachetti
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Patent number: 7762779Abstract: A turbine blade tip shroud. The tip shroud may include a platform, a number of Z-notched positioned within the platform, a number of seal rails positioned on the platform, and a number of cavities positioned within the platform and adjacent to seal rails and the Z-notches.Type: GrantFiled: August 3, 2006Date of Patent: July 27, 2010Assignee: General Electric CompanyInventors: William Scott Zemitis, Massimiliano Mariotti, Cody Jermaine Ford
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Publication number: 20090162193Abstract: A nozzle segment is disclosed that includes a first platform configured to be connected with a casing of a gas turbine engine, a second platform configured to be connected with the casing, the second platform being disposed apart from the first platform in a radial direction of the gas turbine engine, and a plurality of blades disposed between the first and second platforms and connected thereto, a portion of an inside surface of the first platform or the second platform being scalloped so as to increase a throat area of the nozzle segment in order to increase the nozzle segment's mass flow rate handling capability.Type: ApplicationFiled: December 19, 2007Publication date: June 25, 2009Inventors: Massimiliano Mariotti, Craig Allen Bielek, Michele D'Ercole, Luciano Mei
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Publication number: 20080038116Abstract: A turbine blade tip shroud. The tip shroud may include a platform, a number of Z-notched positioned within the platform, a number of seal rails positioned on the platform, and a number of cavities positioned within the platform and adjacent to seal rails and the Z-notches.Type: ApplicationFiled: August 3, 2006Publication date: February 14, 2008Applicant: GENERAL ELECTRIC COMPANYInventors: William Scott Zemitis, Massimiliano Mariotti, Cody Jermaine Ford