Control system for variable guide vane stages of a turbomachine

The system has an actuator (24) for turning a leader ring (22) of a stage (10) of a variable-pitch stator vane via a bell crank type leader unit (26) pivotally mounted on a casing (12). A synchronization bar (30) transmits the turning movement of the ring driven by the actuator to a follower ring (2...

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Bibliographische Detailangaben
1. Verfasser:	BOURU, MICHEL
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 NON-POSITIVE DISPLACEMENT PUMPS POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS STEAM ENGINES WEAPONS
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Beschreibung
Zusammenfassung:	The system has an actuator (24) for turning a leader ring (22) of a stage (10) of a variable-pitch stator vane via a bell crank type leader unit (26) pivotally mounted on a casing (12). A synchronization bar (30) transmits the turning movement of the ring driven by the actuator to a follower ring (22`) of another stage (10`) via a bell crank type follower unit (26`) pivotally mounted on the casing. An additional crank (44) is interposed between the unit (26`) and the ring (22`) and is pivotally mounted both on the casing and the unit (26`).