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公开(公告)号:US10995672B2
公开(公告)日:2021-05-04
申请号:US16033942
申请日:2018-07-12
Applicant: General Electric Company
Inventor: Badri Narayan Ramamurthi , Karim Younsi , Andrey Meshkov , Jason Fredrick Trotter , Timothy John Sommerer , Ramanujam Ramabhadran , Alvaro Alexander Briceno , Charles Cook , Mark Wayne McWaters
Abstract: The present disclosure relates to gas turbine engine operation in which an igniter assembly is provided with an electrical energy input (e.g., an electrical waveform) that is configured to increase a likelihood of igniting a fuel-air mixture surrounding the igniter assembly. In certain embodiments, the igniter assembly is supplied with an augmented electrical waveform that may reduce a quantity of sparks generated by the igniter assembly before successful light-off (e.g., ignition) of the fuel-air mixture is achieved (e.g., as compared to a quantity of sparks generated to achieve ignition by an igniter assembly that receives an electrical energy input in the form of a conventional electrical waveform). Accordingly, the augmented electrical waveform may reduce wear (e.g., via oxidation) on electrodes of the igniter assembly, such as a primary electrode (e.g., a center electrode) and a secondary electrode (e.g., an outer shell electrode) disposed about the primary electrode.
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公开(公告)号:US20200018239A1
公开(公告)日:2020-01-16
申请号:US16033942
申请日:2018-07-12
Applicant: General Electric Company
Inventor: Badri Narayan Ramamurthi , Karim Younsi , Andrey Meshkov , Jason Fredrick Trotter , Timothy John Sommerer , Ramanujam Ramabhadran , Alvaro Alexander Briceno , Charles Cook , Mark Wayne McWaters
Abstract: The present disclosure relates to gas turbine engine operation in which an igniter assembly is provided with an electrical energy input (e.g., an electrical waveform) that is configured to increase a likelihood of igniting a fuel-air mixture surrounding the igniter assembly. In certain embodiments, the igniter assembly is supplied with an augmented electrical waveform that may reduce a quantity of sparks generated by the igniter assembly before successful light-off (e.g., ignition) of the fuel-air mixture is achieved (e.g., as compared to a quantity of sparks generated to achieve ignition by an igniter assembly that receives an electrical energy input in the form of a conventional electrical waveform). Accordingly, the augmented electrical waveform may reduce wear (e.g., via oxidation) on electrodes of the igniter assembly, such as a primary electrode (e.g., a center electrode) and a secondary electrode (e.g., an outer shell electrode) disposed about the primary electrode.
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