Dual retention vane arm

Details Dual retention vane arm Dual retention vane arm

2006-03-14

2006-03-14

Look, Edward K. (Department: 3745)

Rotary kinetic fluid motors or pumps

Selectively adjustable vane or working fluid control means

C415S149100, C415S160000

Reexamination Certificate

active

07011494

ABSTRACT:
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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patent: 5211537 (1993-05-01), Langston et al.
patent: 5462403 (1995-10-01), Pannone
patent: 6375419 (2002-04-01), LeJambre et al.

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