ACTUATION CONTROL SYSTEM AND CORRESPONDING TURBINE SECTION OF A GAS TURBINE ENGINE

A system for modulating turbine blade tip clearance (201) is provided. The system may comprise an actuation control system (200; 300) having at least one actuator (210) configured to modulate turbine blade tip clearance (201) between a turbine blade tip (192) and a blade outer air seal (BOAS). Each...

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Bibliographische Detailangaben
Hauptverfasser:	McCAFFREY, Michael G, WAGNER, Joel H, KIM, Seung Bum, SUN, Fanping, WU, Hailing, CHAUDHRY, Zaffir A, HOFFMAN, Lee A
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 modulating turbine blade tip clearance (201) is provided. The system may comprise an actuation control system (200; 300) having at least one actuator (210) configured to modulate turbine blade tip clearance (201) between a turbine blade tip (192) and a blade outer air seal (BOAS). Each actuator (210) may be coupled to the BOAS. Each actuator (210) may comprise a solid-state motion amplification device such as a flextensional actuator. The actuators may be configured to move the BOAS in a radial direction from a first position to a second position to control tip clearance (201).