Patents by Inventor Emanuele Rizzo
Emanuele Rizzo 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: 11927099Abstract: The composite seal structure includes a carrier ring and a seal element housed in an annular groove formed between a circumferential outer wall and two side walls of the carrier ring. The seal element has a first region in surface-to-surface contact with the annular groove and a second, seal-ing region protruding from the annular groove. A fastening arrangement couples the seal element and the carrier ring to one another. The fastening arrangement comprises a plurality of fastening pins circumferentially arranged around the axis of the carrier ring. Also disclosed is a method for manufacturing the seal structure.Type: GrantFiled: November 27, 2020Date of Patent: March 12, 2024Assignee: Nuovo Pignone Tecnologie—S.R.L.Inventors: Emanuele Rizzo, Massimiliano Tempestini
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Publication number: 20240011493Abstract: The compressor is used for processing a CO2 flow; a first compressor stage has a first row of blades with a first number of blades and a second compressor stage, downstream the first compressor stage, has a second row of blades with a second number of blades; the number of blades of the first compressor stage is less than the number of blades of the second compressor stage; there is an annular gap between the first row of blades and the second row of blades; the first compression stage (200) is designed so to assure that the CO2 flow is in supercritical condition, preferably close to CO2 critical point, at its outlet, and so that the second compressor stage process CO2 in supercritical condition.Type: ApplicationFiled: November 24, 2021Publication date: January 11, 2024Inventors: Ernani Fulvio BELLOBUONO, Lorenzo TONI, Angelo GRIMALDI, Emanuele RIZZO, Roberto VALENTE
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Patent number: 11859498Abstract: A device configured to seal a circumferential gap between a first turbomachine component and a second turbomachine component mutually rotatable about a longitudinal axis. The device is provided with a first sealing element connected to the first turbomachine component and with a second scaling element having an inner part provided with a plurality of projections extending towards the second machine component to define the teeth of a labyrinth seal between the high pressure region and the low pressure region of the turbo machine. The outer part of the second sealing element is connected to the first sealing element through an clastic element. One or more pressure chambers located between the first sealing element and the second sealing element are in fluid communication with the processing fluid of the turbomachine to derive a force acting on the outer part of the second scaling element in the direction of gap closure.Type: GrantFiled: January 8, 2020Date of Patent: January 2, 2024Assignee: Nuovo Pignone Tecnologie S.R.L.Inventors: Giuseppe Sassanelli, Emanuele Rizzo
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Publication number: 20230019443Abstract: The composite seal structure includes a carrier ring and a seal element housed in an annular groove formed between a circumferential outer wall and two side walls of the carrier ring. The seal element has a first region in surface-to-surface contact with the annular groove and a second, seal-ing region protruding from the annular groove. A fastening arrangement couples the seal element and the carrier ring to one another. The fastening arrangement comprises a plurality of fastening pins circumferentially arranged around the axis of the carrier ring. Also disclosed is a method for manufacturing the seal structure.Type: ApplicationFiled: November 27, 2020Publication date: January 19, 2023Inventors: Emanuele RIZZO, Massimiliano TEMPESTINI
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Publication number: 20220065123Abstract: A device configured to seal a circumferential gap between a first turbomachine component and a second turbomachine component mutually rotatable about a longitudinal axis. The device is provided with a first sealing element connected to the first turbomachine component and with a second scaling element having an inner part provided with a plurality of projections extending towards the second machine component to define the teeth of a labyrinth seal between the high pressure region and the low pressure region of the turbo machine. The outer part of the second sealing element is connected to the first sealing element through an clastic element. One or more pressure chambers located between the first sealing element and the second sealing element are in fluid communication with the processing fluid of the turbomachine to derive a force acting on the outer part of the second scaling element in the direction of gap closure.Type: ApplicationFiled: January 8, 2020Publication date: March 3, 2022Inventors: Giuseppe SASSANELLI, Emanuele RIZZO
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Publication number: 20200318641Abstract: The compression train includes an engine, a first centrifugal compressor driven by the engine and a second centrifugal compressor driven by the engine; the first centrifugal compressor is housed inside one case; the second centrifugal compressor is housed inside one case; the first centrifugal compressor has a first inlet fluidly connected to a line of high molecular weight gas, in particular higher than 40; the second centrifugal compressor has a second inlet fluidly connected to a line of low molecular weight gas, in particular between 20 and 30; the second centrifugal compressor is arranged to provide a compression ratio higher than 10:1.Type: ApplicationFiled: June 7, 2017Publication date: October 8, 2020Inventors: Antonio PELAGOTTI, Emanuele RIZZO, Davide BECHERUCCI
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Patent number: 10738641Abstract: A dry gas seal for sealing the shaft of a turbomachinery, provided with means for the continuous health monitoring of the dry gas seal comprising one or more sensors adapted to measure strains and/or loads induced to the primary ring of the dry gas seal and/or strains induced to one or more of the elastic elements coupled to the primary ring and/or adapted to measure displacements of the primary ring or of an element coupled to the primary ring, for an early detection of failure of the seal, thus enabling main failures early detection capability and proactive maintenance actions.Type: GrantFiled: March 15, 2018Date of Patent: August 11, 2020Assignee: NUOVO PIGNONE TECNOLOGIE SRLInventors: Filippo Gerbi, Emanuele Rizzo, Andrea Bernocchi, Marco Marrazzo, Leonardo Baldassarre, Amelia Lavinia Ricchiuti
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Patent number: 10677255Abstract: The shaft seal arrangement for a rotating turbomachine shaft having a rotation axis, comprises a rotor part and a stationary part. A dry gas seal is further provided, in combination with a cooling fluid volume arranged for receiving a cooling fluid and in heat exchange relationship with the dry gas seal. A venting arrangement collectively vents exhaust cooling fluid and dry sealing gas from the shaft seal arrangement.Type: GrantFiled: July 28, 2016Date of Patent: June 9, 2020Assignee: NUOVO PIGNONE SRLInventors: Leonardo Baldassarre, Andrea Cianti, Simone Amidei, Alberto Armenzani, Emanuele Rizzo
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Patent number: 10400787Abstract: A sealing device is described, for separating a first compartment from a second compartment in a turbomachine, a wet gas being processed in the first compartment. The sealing device comprises a rotary component and a stationary component. A sealing member is arranged between the rotary component and the stationary component. The device further comprises an annular wet-particles collector and an oil-jet element, mounted on the rotary component for rotation therewith. The oil-jet element is surrounded by the annular wet-particles collector, such that wet particles contacting the oil-jet element are projected by centrifugal force into the annular wet-particles collector.Type: GrantFiled: May 28, 2015Date of Patent: September 3, 2019Assignee: Nuovo Pignone SrlInventors: Matteo Bertoneri, Emanuele Rizzo, Mirco Tavernari
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Publication number: 20190048891Abstract: A centrifugal compressor includes a rotor with a plurality of impellers and a stator with at least a first diaphragm, a second diaphragm, a diffuser, and a plurality of diffuser blades inside the diffuser; each diffuser blade has a tip portion, a base portion and an airfoil portion; and are located between the downstream portion of the first diaphragm and the upstream portion of the second diaphragm; the base portion of the diffuser blades is integrated in or mounted to the upstream portion of the second diaphragm, and the tip portion of the diffuser blades abuts against the downstream portion of the first diaphragm; alternatively, the base portion of the diffuser blades is integrated in or mounted to the downstream portion of the first diaphragm, and the tip portion of the diffuser blades abuts against the upstream portion of the second diaphragm.Type: ApplicationFiled: March 20, 2017Publication date: February 14, 2019Inventors: Daniele PANARA, Emanuele RIZZO
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Publication number: 20190003481Abstract: The shaft seal arrangement for a rotating turbomachine shaft having a rotation axis, comprises a rotor part and a stationary part. A dry gas seal is further provided, in combination with a cooling fluid volume arranged for receiving a cooling fluid and in heat exchange relationship with the dry gas seal. A venting arrangement collectively vents exhaust cooling fluid and dry sealing gas from the shaft seal arrangement.Type: ApplicationFiled: July 28, 2016Publication date: January 3, 2019Inventors: Leonardo BALDASSARRE, Andrea CIANTI, Simone AMIDEI, Alberto ARMENZANI, Emanuele RIZZO
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Publication number: 20180266265Abstract: A dry gas seal for sealing the shaft of a turbomachinery, provided with means for the continuous health monitoring of the dry gas seal comprising one or more sensors adapted to measure strains and/or loads induced to the primary ring of the dry gas seal and/or strains induced to one or more of the elastic elements coupled to the primary ring and/or adapted to measure displacements of the primary ring or of an element coupled to the primary ring, for an early detection of failure of the seal, thus enabling main failures early detection capability and proactive maintenance actions.Type: ApplicationFiled: March 15, 2018Publication date: September 20, 2018Inventors: Filippo GERBI, Emanuele RIZZO, Andrea BERNOCCHI, Marco MARRAZZO, Leonardo BALDASSARRE, Amelia Lavinia RICCHIUTI
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Publication number: 20170254341Abstract: A sealing device is described, for separating a first compartment from a second compartment in a turbomachine, a wet gas being processed in the first compartment. The sealing device comprises a rotary component and a stationary component. A sealing member is arranged between the rotary component and the stationary component. The device further comprises an annular wet-particles collector and an oil-jet element, mounted on the rotary component for rotation therewith. The oil-jet element is surrounded by the annular wet-particles collector, such that wet particles contacting the oil-jet element are projected by centrifugal force into the annular wet-particles collector.Type: ApplicationFiled: May 28, 2015Publication date: September 7, 2017Inventors: Matteo BERTONERI, Emanuele RIZZO, Mirco TAVERNARI
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Patent number: 9695704Abstract: A device for sealing a high pressure region in a turbomachine from a low pressure region; the turbomachine has one or more statoric parts and one or more rotoric parts; the device comprises a labyrinth seal having a first plurality of grooves and a second plurality of grooves; the first plurality of grooves is disposed in a helical pattern and the second plurality of grooves is disposed in a cylindrical pattern; the labyrinth seal is disposed between at least one of the one or more rotoric parts of the turbomachine and at least one of the one or more statoric parts of the turbomachine between the high pressure region and the low pressure region of the turbomachine; the helical pattern has a helix angle less than or equal to 10°, wherein a stabilization effect of the turbomachine is obtained and leakage due to the second plurality of grooves is negligible.Type: GrantFiled: April 26, 2013Date of Patent: July 4, 2017Assignee: Nuovo Pignone SrlInventors: Emanuele Rizzo, Antonio Pelagotti
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Publication number: 20150086343Abstract: A device for sealing a high pressure region in a turbomachine from a low pressure region; the turbomachine has one or more statoric parts and one or more rotoric parts; the device comprises a labyrinth seal having a first plurality of grooves and a second plurality of grooves; the first plurality of grooves is disposed in a helical pattern and the second plurality of grooves is disposed in a cylindrical pattern; the labyrinth seal is disposed between at least one of the one or more rotoric parts of the turbomachine and at least one of the one or more statoric parts of the turbomachine between the high pressure region and the low pressure region of the turbomachine; the helical pattern has a helix angle less than or equal to 10°, wherein a stabilization effect of the turbomachine is obtained and leakage due to the second plurality of grooves is negligible.Type: ApplicationFiled: April 26, 2013Publication date: March 26, 2015Inventors: Emanuele Rizzo, Antonio Pelagotti