US 12,460,557 B1
Variable pitch airfoil assembly for a gas turbine engine
Zachary Pebley, Fairfield Township, OH (US); Suryarghya Chakrabarti, Mason, OH (US); Shawn P. Riley, Liberty Township, OH (US); and Nicholas M. Daggett, Camden, ME (US)
Assigned to General Electric Company, Evendale, OH (US)
Filed by General Electric Company, Evendale, OH (US)
Filed on Jan. 23, 2025, as Appl. No. 19/034,964.
Int. Cl. F01D 17/16 (2006.01); F01D 5/10 (2006.01)
CPC F01D 17/162 (2013.01) [F01D 5/10 (2013.01); F05D 2260/96 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A variable pitch airfoil assembly for an engine, the variable pitch airfoil assembly comprising:
a disk having an annular shape extending about an axial direction;
an airfoil coupled to the disk via a platform, the airfoil extending outwardly from the disk in a radial direction and being rotatable relative to the disk about a pitch axis; and
at least one damping element disposed between the platform and the disk, the at least one damping element configured to provide vibration damping by friction between the at least one damping element, the disk, and the platform while also allowing for a pitch change of the airfoil.