Patents by Inventor Sal Albert Leone

Sal Albert Leone 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: 8408003
    Abstract: A combined cycle power plant includes at least one gas turbine, at least one steam turbine and a heat recovery boiler in combination to produce electricity and/or process steam. The heat recovery boiler has a duct for receiving and confining gas turbine exhaust gas from the gas turbine. Heat transfer tubes for heating water and steam for use in the bottoming steam cycle (steam turbine and/or process steam) are disposed within the heat recovery boiler and have exterior surfaces in fluid communication with the gas turbine exhaust gas and interior surfaces in circulatory fluid communication with water and/or steam. A cellular material is attached to the exterior surfaces of the heat transfer tubes and operates to enhance heat transfer from the gas turbine exhaust gas to the water and/or steam.
    Type: Grant
    Filed: November 5, 2008
    Date of Patent: April 2, 2013
    Assignee: General Electric Company
    Inventors: Canan Uslu Hardwicke, Sal Albert Leone, Thomas Francis Taylor, Hua Zhang
  • Patent number: 8281564
    Abstract: A combined cycle power plant includes a first generator driven by a gas turbine for generating electricity. The combined cycle power plant further includes a heat recovery steam generator disposed to receive exhaust gas from the gas turbine. The heat recovery steam generator includes an evaporator having tubes receptive to water flow therethrough. The tubes are disposed to be exposed to the exhaust gas, such that a flow of the exhaust gas passes around the tubes transfers heat from the exhaust gas to the tubes and thereby the water flowing through the tubes sufficient for the water to evaporate into steam. The tubes each having an outer surface with a plurality of deformations formed therein sufficient to introduce turbulence in the flow of the exhaust gas for enhancing heat transfer from the exhaust gas to the tubes.
    Type: Grant
    Filed: January 23, 2009
    Date of Patent: October 9, 2012
    Assignee: General Electric Company
    Inventors: Hua Zhang, Sal Albert Leone, Thomas Francis Taylor
  • Publication number: 20120111552
    Abstract: A heat exchanger comprises a tube and fins extending from an outer surface of the tube in a helical path. The fins comprise serrated sections and solid sections that are disposed in a predetermined arrangement along the helical path.
    Type: Application
    Filed: January 12, 2012
    Publication date: May 10, 2012
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Jorge Alejandro Carretero Benignos, Rodrigo Rodriguez Erdmenger, Sal Albert Leone, Thomas Francis Taylor, Hua Zhang, Johannes Eckstein
  • Publication number: 20100282456
    Abstract: A heat exchanger comprises a tube and fins extending from an outer surface of the tube. The fins comprise first and second sets of fins with the first set of fins oriented in a first direction with respect to an axial direction of the tube and the second set of fins oriented in a second direction with respect to the axial direction of the tube to expose at least a portion of the first and second sets of fins to a free stream.
    Type: Application
    Filed: May 6, 2009
    Publication date: November 11, 2010
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Jorge Alejandro Carretero Benignos, Rodrigo Rodriguez Erdmenger, Sal Albert Leone, Thomas Francis Taylor, Hua Zhang, Johannes Eckstein
  • Publication number: 20100186443
    Abstract: A combined cycle power plant includes a first generator driven by a gas turbine for generating electricity. The combined cycle power plant further includes a heat recovery steam generator disposed to receive exhaust gas from the gas turbine. The heat recovery steam generator includes an evaporator having tubes receptive to water flow therethrough. The tubes are disposed to be exposed to the exhaust gas, such that a flow of the exhaust gas passes around the tubes transfers heat from the exhaust gas to the tubes and thereby the water flowing through the tubes sufficient for the water to evaporate into steam. The tubes each having an outer surface with a plurality of deformations formed therein sufficient to introduce turbulence in the flow of the exhaust gas for enhancing heat transfer from the exhaust gas to the tubes.
    Type: Application
    Filed: January 23, 2009
    Publication date: July 29, 2010
    Applicant: General Electric Company
    Inventors: Hua Zhang, Sal Albert Leone, Thomas Francis Taylor
  • Publication number: 20100107595
    Abstract: A combined cycle power plant includes at least one gas turbine, at least one steam turbine and a heat recovery boiler in combination to produce electricity and/or process steam. The heat recovery boiler has a duct for receiving and confining gas turbine exhaust gas from the gas turbine. Heat transfer tubes for heating water and steam for use in the bottoming steam cycle (steam turbine and/or process steam) are disposed within the heat recovery boiler and have exterior surfaces in fluid communication with the gas turbine exhaust gas and interior surfaces in circulatory fluid communication with water and/or steam. A cellular material is attached to the exterior surfaces of the heat transfer tubes and operates to enhance heat transfer from the gas turbine exhaust gas to the water and/or steam.
    Type: Application
    Filed: November 5, 2008
    Publication date: May 6, 2010
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Canan Uslu Hardwicke, Sal Albert Leone, Thomas Francis Taylor, Hua Zhang
  • Publication number: 20100043442
    Abstract: Disclosed is a fin tube for thermal energy transfer of turbomachine exhaust including a tube disposable in an exhaust stream of a turbomachine and a plurality of fins extending from an outer surface of the tube. Each fin includes a plurality of adjacent fin segments which are separated by a serration. At least one fin segment of the plurality of fin segments includes at least one dimple thereon. The at least one dimple increases a turbulence of exhaust flow across the at least one fin segment and increases a surface area of the at least one fin segment thereby increasing a thermal energy transfer capability of the fin tube. Further disclosed is a combined cycle power plant utilizing the fin tube and a method for operating the combined cycle power plant.
    Type: Application
    Filed: August 19, 2008
    Publication date: February 25, 2010
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Hua Zhang, Sal Albert Leone, Thomas Francis Taylor
  • Publication number: 20090064654
    Abstract: A turbine engine includes a compressor, a combustor fluidly connected to the compressor and a first turbine operated by a combustion product formed in the first combustor. The turbine engine also includes a reheat chamber in which air, fuel, and exhaust gases from the first turbine are ignited to form a combustion product used to drive a second turbine. The engine further includes a controller that regulates at least one of an amount of fuel and compressed air delivered to the combustor and an amount of fuel, compressed air and exhaust gases delivered to the reheat chamber based on at least one turbine engine parameter measured by a sensor.
    Type: Application
    Filed: September 11, 2007
    Publication date: March 12, 2009
    Applicant: General Electric Company
    Inventors: Joseph Kirzhner, Daniel Hynum, Sal Albert Leone
  • Patent number: 6499742
    Abstract: The invention provides a brush seal assembly, and method of using, for reducing adverse fluid flow effects to a brush seal,.the brush seal assembly comprising a support housing having a passage; a rotating shaft disposed in the passage of the support housing, the rotating shaft including a shaft body having a periphery and an annular tooth extending around the periphery of the shaft body; and an annular brush seal including a plurality of bristles extending around the shaft body, each of the plurality of bristles attached to and extending from the support housing in the passage towards the rotating shaft.
    Type: Grant
    Filed: August 20, 2001
    Date of Patent: December 31, 2002
    Assignee: General Electric Company
    Inventors: Ming Zhou, Sal Albert Leone, Susan Marie Hyde
  • Patent number: 6428270
    Abstract: In a multi-stage turbine wherein at least one turbine wheel supports a row of buckets for rotation, and wherein the turbine wheel is located axially between first and second annular fixed arrays of nozzles, a cooling air circuit for purging a wheelspace between the turbine wheel and the second fixed annular array of nozzles comprising a flowpath through a shank portion of one or more buckets connecting a wheelspace between the turbine wheel and the first fixed annular array of nozzles with the wheelspace between the turbine wheel and the second fixed annular array of nozzles.
    Type: Grant
    Filed: September 15, 2000
    Date of Patent: August 6, 2002
    Assignee: General Electric Company
    Inventors: Sal Albert Leone, Sacheverel Quentin Eldrid, Douglas Arthur Lupe
  • Patent number: 6402157
    Abstract: The invention provides a brush seal, and a method of using a brush seal, for providing a seal between a support housing and a rotating shaft. The brush seal comprises a support portion; a back plate connected to and extending from the support portion on a back side of the support portion. The brush seal further includes a set of bristles attached to the support portion, the back plate disposed on a back side of the set of bristles and supporting the set of bristles. The brush seal further includes at least one fitting portion connected to and extending from the support portion, each of the at least one fitting portions configured to mate with a corresponding slot in the support housing so as to prevent mis-fit of the brush seal in the support housing.
    Type: Grant
    Filed: August 20, 2001
    Date of Patent: June 11, 2002
    Assignee: General Electric Company
    Inventors: Ming Zhou, Sal Albert Leone, Susan Marie Hyde, Bruce Miller, Peter A. Stinnett
  • Patent number: 6397604
    Abstract: In a land based gas turbine including a compressor, a combustor and turbine section including at least three stages, an improvement comprising an inlet into a third stage nozzle from the compressor for feeding cooling air from the compressor to the third stage nozzle; at least one passageway running substantially radially through each airfoil of the third stage nozzle and an associated diaphragm, into an annular space between the rotor and the diaphragm; and passageways communicating between the annular space and individual buckets of the third stage.
    Type: Grant
    Filed: February 1, 2001
    Date of Patent: June 4, 2002
    Assignee: General Electric Company
    Inventors: Sacheverel Quentin Eldrid, James Lee Burns, Gene David Palmer, Sal Albert Leone, Gary Joseph Drlik, Edward Eugene Gibler
  • Patent number: 6393825
    Abstract: A system and method are provided for controlling cooling air flow for pressure modulation of turbine components, such as the turbine outer sidewall cavities. The pressure at which cooling and purge air is supplied to the turbine outer side wall cavities is modulated, based on compressor discharge pressure (Pcd), thereby to generally maintain the back flow margin (BFM) so as to minimize excessive leakage and the consequent performance deterioration. In an exemplary embodiment, the air pressure within the third stage outer side wall cavity and the air pressure within the fourth stage outer side wall cavity are each controlled to a respective value that is a respective prescribed percentage of the concurrent compressor discharge pressure. The prescribed percentage may be determined from a ratio of the respective outer side wall pressure to compressor discharge pressure at Cold Day Turn Down (CDTD) required to provide a prescribed back flow margin.
    Type: Grant
    Filed: January 25, 2000
    Date of Patent: May 28, 2002
    Assignee: General Electric Company
    Inventors: Sal Albert Leone, Matthew David Book, Christopher R. Banares
  • Patent number: 6385958
    Abstract: A method is provided for controlling cooling air flow for pressure modulation of turbine components, such as the turbine outer sidewall cavities. The pressure at which cooling and purge air is supplied to the turbine outer side wall cavities is modulated, based on compressor discharge pressure (Pcd), thereby to generally maintain the back flow margin (BFM) so as to minimize excessive leakage and the consequent performance deterioration. In an exemplary embodiment, the air pressure within the third stage outer side wall cavity and the air pressure within the fourth stage outer side wall cavity are each controlled to a respective value that is a respective prescribed percentage of the concurrent compressor discharge pressure. The prescribed percentage may be determined from a ratio of the respective outer side wall pressure to compressor discharge pressure at Cold Day Turn Down (CDTD) required to provide a prescribed back flow margin.
    Type: Grant
    Filed: April 25, 2001
    Date of Patent: May 14, 2002
    Assignee: General Electric Company
    Inventors: Sal Albert Leone, Matthew David Book, Christopher R. Banares
  • Publication number: 20010025476
    Abstract: In a land based gas turbine including a compressor, a combustor and turbine section including at least three stages, an improvement comprising an inlet into a third stage nozzle from the compressor for feeding cooling air from the compressor to the third stage nozzle; at least one passageway running substantially radially through each airfoil of the third stage nozzle and an associated diaphragm, into an annular space between the rotor and the diaphragm; and passageways communicating between the annular space and individual buckets of the third stage.
    Type: Application
    Filed: February 1, 2001
    Publication date: October 4, 2001
    Applicant: General Electric Company
    Inventors: Sacheverel Quentin Eldrid, James Lee Burns, Gene David Palmer, Sal Albert Leone, Gary Joseph Drlik, Edward Eugene Gibler
  • Publication number: 20010018824
    Abstract: A system and method are provided for controlling cooling air flow for pressure modulation of turbine components such as the turbine outer sidewall cavities. The pressure at which cooling and purge air is supplied to the turbine outer side wall cavities is modulated, based on compressor discharge pressure (Pcd), thereby to generally maintain the back flow margin (BFM) so as to minimize excessive leakage and the consequent performance deterioration. In an exemplary embodiment, the air pressure within the third stage outer side wall cavity and the air pressure within the fourth stage outer side wall cavity are each controlled to a respective value that is a respective prescribed percentage of the concurrent compressor discharge pressure. The prescribed percentage may be determined from a ratio of the respective outer side wall pressure to compressor discharge pressure at Cold Day Turn Down (CDTD) required to provide a prescribed back flow margin.
    Type: Application
    Filed: April 25, 2001
    Publication date: September 6, 2001
    Applicant: General Electric Company
    Inventors: Sal Albert Leone, Matthew David Book, Christopher R. Banares