SYSTEMS AND METHODS FOR CONTROLLING BLADE TIP CLEARANCES

A system for controlling blade tip clearances in a gas turbine engine (20) may comprise an active clearance control system (120) and a controller (208) in operable communication with the active clearance control system (120). The controller (208) may be configured to identify a cruise condition, red...

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Bibliographische Detailangaben
1. Verfasser:	FEULNER, Matthew R
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BLASTING ENGINE PLANTS IN GENERAL HEATING LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES STEAM ENGINES WEAPONS
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Beschreibung
Zusammenfassung:	A system for controlling blade tip clearances in a gas turbine engine (20) may comprise an active clearance control system (120) and a controller (208) in operable communication with the active clearance control system (120). The controller (208) may be configured to identify a cruise condition, reduce a thrust limit of the gas turbine engine (20) to a de-rated maximum climb thrust, determine a first target tip clearance based on the de-rated maximum climb thrust, and send a command signal correlating to the first target tip clearance to the active clearance control system (120).