Finger-foil seals and gas turbine engines employing the same

摘要

Embodiments of a gas turbine engine (18) including a finger-foil seal (60, 120) are provided, as are embodiments of a finger-foil seal. In one embodiment, the finger-foil seal includes an aerodynamic foil (72, 128) having a generally annular body (94) through which a first opening (100) is formed. A finger seal retention structure (68, 132) is disposed around the aerodynamic foil. A finger seal backing spring (70, 130) is coupled to the finger seal retention structure and extends radially inward therefrom to contact an outer circumference of the aerodynamic foil. A first anti-rotation pin (98, 140) extends radially from the finger seal retention structure and into the first opening formed in the aerodynamic foil to inhibit rotation of the aerodynamic foil during operation of the finger-foil seal.