Patents by Inventor Andrew Todd Lehmann

Andrew Todd Lehmann 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: 20230334394
    Abstract: There are provided systems and methods for prognostic analytics of an asset. For example, there is provided a system for monitoring a reliability of a component of an asset. The system includes a processor and a memory comprising instructions that, when executed by the processor, cause it to perform certain operations. These operations may include receiving input data, which can include performance data relating to the component, configuration data relating to the component, and statistical data relating to a plurality of assets. The operations can further include providing a pre-emptive recommendation for the component based on the input data.
    Type: Application
    Filed: April 24, 2023
    Publication date: October 19, 2023
    Applicant: General Electric Company
    Inventor: Andrew Todd LEHMANN
  • Patent number: 11636412
    Abstract: There are provided systems and methods for prognostic analytics of an asset. For example, there is provided a system for monitoring a reliability of a component of an asset. The system includes a processor and a memory comprising instructions that, when executed by the processor, cause it to perform certain operations. These operations may include receiving input data, which can include performance data relating to the component, configuration data relating to the component, and statistical data relating to a plurality of assets. The operations can further include providing a pre-emptive recommendation for the component based on the input data.
    Type: Grant
    Filed: January 24, 2020
    Date of Patent: April 25, 2023
    Assignee: GENERAL ELECTRIC COMPANY
    Inventor: Andrew Todd Lehmann
  • Patent number: 11268446
    Abstract: A gas turbine engine and method of starting, the gas turbine engine having a rotor comprising at least a shaft mounted compressor and turbine, with a casing surrounding the rotor. The method comprises an acceleration phase, a bowed-rotor cooling phase, during the acceleration, and a combustion phase. The bowed-rotor cooling phase comprises a time where the rotational speed of the rotor is maintained below a bowed-rotor threshold speed until a non-bowed condition is satisfied, wherein the air forced through the gas turbine engine cools the rotor. The combustion phase occurs after the bowed-rotor cooling phase and upon reaching the combustion speed, wherein fuel is supplied to the gas turbine engine is turned on.
    Type: Grant
    Filed: November 14, 2019
    Date of Patent: March 8, 2022
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Joseph Daniel Garrett, III, Mark Edward Linz, Tod Robert Steen, Thomas Charles Swager, Andrew Todd Lehmann, Michael Scott McCambridge, Robert Charles Hon, Thomas Earl Gillingham, Daniel Roy Kiracofe, Kenneth Kirchmayer, Joseph Roger Broda, Kevin Richard Graziano, Steven Alan Ross, Amid Ansari
  • Publication number: 20210233000
    Abstract: There are provided systems and methods for prognostic analytics of an asset. For example, there is provided a system for monitoring a reliability of a component of an asset. The system includes a processor and a memory comprising instructions that, when executed by the processor, cause it to perform certain operations. These operations may include receiving input data, which can include performance data relating to the component, configuration data relating to the component, and statistical data relating to a plurality of assets. The operations can further include providing a pre-emptive recommendation for the component based on the input data.
    Type: Application
    Filed: January 24, 2020
    Publication date: July 29, 2021
    Applicant: GENERAL ELECTRIC COMPANY
    Inventor: Andrew Todd Lehmann
  • Publication number: 20200240329
    Abstract: A gas turbine engine and method of starting, the gas turbine engine having a rotor comprising at least a shaft mounted compressor and turbine, with a casing surrounding the rotor. The method comprises an acceleration phase, a bowed-rotor cooling phase, during the acceleration, and a combustion phase. The bowed-rotor cooling phase comprises a time where the rotational speed of the rotor is maintained below a bowed-rotor threshold speed until a non-bowed condition is satisfied, wherein the air forced through the gas turbine engine cools the rotor. The combustion phase occurs after the bowed-rotor cooling phase and upon reaching the combustion speed, wherein fuel is supplied to the gas turbine engine is turned on.
    Type: Application
    Filed: November 14, 2019
    Publication date: July 30, 2020
    Inventors: Amid Ansari, Joseph Roger Broda, Thomas Earl Gillingham, Kevin Richard Graziano, Robert Charles Hon, Kenneth Kirchmayer, Daniel Roy Kiracofe, Andrew Todd Lehmann, Michael Scott McCambridge, Tod Robert Steen, Thomas Charles Swager
  • Patent number: 10724443
    Abstract: A method of operating a turbine engine that includes actuating a starter motor of the turbine engine such that a motoring speed of the turbine engine increases, and actuating a plurality of variable stator vanes of the turbine engine such that the plurality of variable stator vanes are at least partially open to control the motoring speed of the turbine engine.
    Type: Grant
    Filed: May 24, 2016
    Date of Patent: July 28, 2020
    Assignee: General Electric Company
    Inventors: Robert Charles Hon, Thomas Charles Swager, Andrew Todd Lehmann, Michael Scott McCambridge, Thomas Earl Gillingham, Joseph Roger Broda, Kevin Richard Graziano, Amid Ansari, Kenneth Lee Kirchmayer, Tod Robert Steen, Daniel Roy Kiracofe
  • Patent number: 10502139
    Abstract: A method of starting a gas turbine engine having a rotor comprising at least a shaft-mounted compressor and turbine, with a casing surrounding the rotor includes an acceleration phase, a bowed-rotor cooling phase, during the acceleration, and a combustion phase. The bowed-rotor cooling phase comprises a time where the rotational speed of the rotor is maintained below a bowed-rotor threshold speed until a non-bowed condition is satisfied, wherein the air forced through the gas turbine engine cools the rotor. The combustion phase occurs after the bowed-rotor cooling phase and upon reaching the combustion speed, wherein fuel is supplied to the gas turbine engine.
    Type: Grant
    Filed: January 28, 2015
    Date of Patent: December 10, 2019
    Assignee: General Electric Company
    Inventors: Steven Alan Ross, Mark Edward Linz, Joseph Daniel Garrett, III, Amid Ansari, Joseph Roger Broda, Thomas Earl Gillingham, Kevin Richard Graziano, Robert Charles Hon, Kenneth Kirchmayer, Daniel Roy Kiracofe, Andrew Todd Lehmann, Michael Scott McCambridge, Tod Robert Steen, Thomas Charles Swager
  • Publication number: 20170342908
    Abstract: A method of operating a turbine engine that includes actuating a starter motor of the turbine engine such that a motoring speed of the turbine engine increases, and actuating a plurality of variable stator vanes of the turbine engine such that the plurality of variable stator vanes are at least partially open to control the motoring speed of the turbine engine.
    Type: Application
    Filed: May 24, 2016
    Publication date: November 30, 2017
    Inventors: Robert Charles Hon, Thomas Charles Swager, Andrew Todd Lehmann, Michael Scott McCambridge, Thomas Earl Gillingham, Joseph Roger Broda, Kevin Richard Graziano, Amid Ansari, Kenneth Kirchmayer, Tod Robert Steen, Daniel Roy Kiracofe
  • Publication number: 20160348588
    Abstract: A method of starting a gas turbine engine having a rotor comprising at least a shaft mounted compressor and turbine, with a casing surrounding the rotor.
    Type: Application
    Filed: January 28, 2015
    Publication date: December 1, 2016
    Inventors: Steven Alan Ross, Mark Edward Linz, Joseph Daniel Garrett, III, Amid Ansari, Joseph Roger Broda, Thomas Earl Gillingham, Kevin Richard Graziano, Robert Charles Hon, Kenneth Kirchmayer, Daniel Roy Kiracofe, Andrew Todd Lehmann, Michael Scott McCambrige, Tod Robert Steen, Thomas Charles Swager
  • Patent number: 7293400
    Abstract: A method of monitoring a physical parameter comprises receiving a sensor signal representative of an actual value from each of a plurality of sensors. The method further comprises calculating confidence value for each sensed value and a weighted average of actual values of the sensor signal by weighting each sensed value by the respective confidence value. The weighted average is used to determine a corresponding value of the sensed parameter.
    Type: Grant
    Filed: September 30, 2004
    Date of Patent: November 13, 2007
    Assignee: General Electric Company
    Inventors: Avinash Vinayak Taware, Teeporn Paul Tanpitukpongse, Andrew Todd Lehmann, Kenneth Paul Meiners, Steven Keith Handelsman, Richard Bradford Hook, Michael Richard Durling, Peter Thomas Harrison, William Lee Barrow