Invention Application
US20160017746A1 GEARED ARCHITECTURE TO PROTECT CRITICAL HARDWARE DURING FAN BLADE OUT 审中-公开
用于风扇叶片保护关键硬件的齿轮架构

GEARED ARCHITECTURE TO PROTECT CRITICAL HARDWARE DURING FAN BLADE OUT
Abstract:
A turbofan engine including a fan section including a plurality of fan blades rotatable about an axis, a compressor including a plurality of compressor blades, a turbine including a plurality of turbine blades and a geared architecture driven by the turbine for driving the fan section at a speed and direction different than the turbine is disclosed. A rub strip proximate at least one of the compressor blades, the turbine blades and the fan blades slows rotation when engaged. The rub strip generates a torque opposing rotation when in an engaged condition that is between 2 and 6 times a torque encountered in a non-engaged condition.
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