Controllable speed windmill operation of a gas turbine engine through low spool power extraction

摘要

A gas turbine engine according to an exemplary aspect of the present disclosure includes, among other things, a fan section including a fan, a geared architecture, a spool which drives the fan through the geared architecture, and at least one component geared to the spool and being operable to control a speed of the spool during a “windmilling” condition. A method of gas turbine engine operations during a “windmilling” condition is also disclosed.

主权项

1. A gas turbine engine comprising:
a fan section including a fan; a geared architecture; a spool which drives said fan through said geared architecture; at least one component geared to said spool and being operable to control a speed of said spool during a “windmilling” condition; and wherein said at least one component is operable to reduce a speed of the fan to a predetermined threshold in response to the “windmilling” condition.