EMERGENCY POWER GENERATION VIA LIMITED VARIABLE PITCH FAN BLADE

摘要

A method of generating emergency power includes identifying a power-loss condition. In the power-loss condition, a desired quantity of power is determined Emergency power is generated from a turbofan section of the aircraft's engine. The turbofan has a plurality of blades, which have a variable pitch that can be adjusted as a function of the desired quantity of power and actual generated emergency power.

主权项

1. A gas turbine engine comprising:
a low pressure spool including:
a low spool shaft; anda fan section, the fan section comprising a plurality of adjustable fan blades and configured to co-rotate with the low pressure shaft; a high pressure spool including a high spool shaft, wherein the high pressure spool is configured to co-rotate with the low pressure spool during a power-loss condition; a generator coupled to the high pressure spool and configured to generate power; and a controller configured to adjust a pitch of the plurality of adjustable fan blades during the power-loss condition.