Systems and methods involving multiple torque paths for gas turbine engines

摘要

A turbofan engine (100) includes a fan (140), a compressor section (102), a combustor (104) in fluid communication with the compressor section (102), a turbine section (106) in fluid communication with the combustor (104), a shaft (108) configured to be driven by the turbine section (106) and coupled to the compressor section (102) through a first torque load path (120), and a speed reduction mechanism (138), configured to be driven by the shaft through a second torque load path (122) separate from the first load path, for rotating the fan.