Cooling fluid control system and methods of operating a cooling fluid system for a turbine engine

Abstract

A cooling fluid control system for a turbine engine having one or more fuel nozzles. The cooling fluid control system includes a cooling fluid system and a controller. The cooling fluid system is in fluid communication with the one or more fuel nozzles for supplying a cooling fluid to the one or more fuel nozzles. The controller controls the cooling fluid system to supply the cooling fluid through the one or more fuel nozzles when the turbine engine is shut down. In one aspect, the controller controls the cooling fluid system to supply the cooling fluid through the one or more fuel nozzles when a fuel nozzle temperature of the one or more fuel nozzles is greater than a fuel nozzle temperature threshold during at least one of a mid-level power operation or a low power operation of the turbine engine.

Dependencies are inferred from the claim text.