GEARBOX EFFICIENCY RATING FOR TURBOMACHINE ENGINES
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United States of America Patent
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Issued Date -
Jul 18, 2024
app pub date -
Jan 23, 2024
filing date -
Aug 4, 2020
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Abstract
A turbomachine engine can include a fan assembly, a vane assembly, a core engine, and a gearbox. The fan assembly can include a plurality of fan blades. The vane assembly can include a plurality of vanes, and the vanes can be disposed aft of the fan blades. The core engine can include one or more compressor sections and one or more turbine sections. The gearbox includes an input and an output. The input is coupled to the one or more turbine sections of the core engine and comprises a first rotational speed, the output is coupled to the fan assembly and has a second rotational speed. A gear ratio of the first rotational speed to the second rotational speed is within a range of 4.1-14.0.
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