F - Mech Eng,Light,Heat,Weapons – 02 – C
Patent
F - Mech Eng,Light,Heat,Weapons
02
C
60/183
F02C 7/04 (2006.01) F01D 17/16 (2006.01) F04D 29/56 (2006.01)
Patent
CA 1247380
ACTUATOR FOR VARIABLE VANES ABSTRACT OF THE DISCLOSURE Disclosed is an actuator for rotating a plurality of circumferentially spaced variable vanes each having a spindle extending through a casing about which the vane is rotatable. The actuator includes an arcuate unison member and a plurality of levers each having first and second ends, respective ones of the levers being fixedly attached to a vane spindle at the lever first end and rotatably attached to the unison member at the lever second end. Frangible means are provided for allowing at least one of the vanes to be rotated to an angular position different from the position of adjacent ones of the vanes upon impact of the one vane by a foreign object, and limit means are provided for maintaining the angular position of the one vane within predetermined limits with respect to the angular position of adjacent vanes to prevent 1/REV excitation.
516096
Company General Electric
Eckersley Raymond A.
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