Operation of an aircraft engine after emergency shutdown

Details Operation of an aircraft engine after emergency shutdown Operation of an aircraft engine after emergency shutdown

2007-05-08

2010-12-21

Kershteyn, Igor (Department: 3745)

Rotary kinetic fluid motors or pumps

Method of operation

C415S068000, C415S070000, C415S122100, C060S226100, C060S792000, C060S039163

Reexamination Certificate

active

07854582

ABSTRACT:
A method of emergency operation of an aircraft turbofan engine during an aircraft flight is provided. The engine includes a fan shaft with a fan, and an electric motor/generator mounted for rotation therewith. The method includes shutting down the engine while allowing the engine to windmill, operating the electric motor/generator to rotate the shaft at a determined windmilling speed which is desired for the fan shaft, and operating the engine at the desired windmilling speed for substantially a remainder of the aircraft flight.

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