Dual retention vane arm

Details Dual retention vane arm Dual retention vane arm

F - Mech Eng,Light,Heat,Weapons

01

D

F01D 17/16 (2006.01) F01D 1/00 (2006.01) F01D 5/00 (2006.01) F01D 5/12 (2006.01) F01D 9/02 (2006.01) F01D 17/20 (2006.01) F02C 7/00 (2006.01)

Patent

CA 2486587

A variable vane arm is disclosed having dual retention capability to ensure vanes of a gas turbine engine remain connected to the vane arm even under surge loads or when fastener preload, or the entire fastener, is lost. The variable vane arm further provides a surge slot to facilitate rotation of the vane even when the vane is operating under surge or otherwise excessively high pressure conditions.

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