Gas turbine engine starter reduction gear train with geared rotary actuator
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United States of America Patent
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Nov 12, 2019
Grant Date -
Jan 11, 2018
app pub date -
Jul 5, 2016
filing date -
Jul 5, 2016
priority date (Note) -
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Abstract
According to an aspect, a system for a gas turbine engine includes a reduction gear train operable to drive rotation of a starter gear train that interfaces to an accessory gearbox of the gas turbine engine. The reduction gear train includes a starter interface gear that engages the starter gear train and a core-turning clutch operably connected to the starter interface gear. The reduction gear train also includes a geared rotary actuator including a primary planetary gear system, where the geared rotary actuator is operably connected to the core-turning clutch. The reduction gear train further includes a secondary planetary gear system operably connected to the primary planetary gear system and a core-turning input. The system also includes a mounting pad with an interface to couple a core-turning motor to the core-turning input of the reduction gear train.
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