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).
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Publication number: 20230334394Abstract: 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: ApplicationFiled: April 24, 2023Publication date: October 19, 2023Applicant: General Electric CompanyInventor: Andrew Todd LEHMANN
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Patent number: 11636412Abstract: 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: GrantFiled: January 24, 2020Date of Patent: April 25, 2023Assignee: GENERAL ELECTRIC COMPANYInventor: Andrew Todd Lehmann
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Patent number: 11268446Abstract: 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: GrantFiled: November 14, 2019Date of Patent: March 8, 2022Assignee: GENERAL ELECTRIC COMPANYInventors: 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
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Publication number: 20210233000Abstract: 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: ApplicationFiled: January 24, 2020Publication date: July 29, 2021Applicant: GENERAL ELECTRIC COMPANYInventor: Andrew Todd Lehmann
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Publication number: 20200240329Abstract: 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: ApplicationFiled: November 14, 2019Publication date: July 30, 2020Inventors: 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
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Patent number: 10724443Abstract: 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: GrantFiled: May 24, 2016Date of Patent: July 28, 2020Assignee: General Electric CompanyInventors: 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
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Patent number: 10502139Abstract: 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: GrantFiled: January 28, 2015Date of Patent: December 10, 2019Assignee: General Electric CompanyInventors: 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
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Publication number: 20170342908Abstract: 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: ApplicationFiled: May 24, 2016Publication date: November 30, 2017Inventors: 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
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Publication number: 20160348588Abstract: 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: ApplicationFiled: January 28, 2015Publication date: December 1, 2016Inventors: 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
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Patent number: 7293400Abstract: 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: GrantFiled: September 30, 2004Date of Patent: November 13, 2007Assignee: General Electric CompanyInventors: 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