United Technologies Corporation

Scott D Hjelm

Brandon W Spangler

Jonas S Banhos

Jeffrey S Beattie

Anita L Tracy

Corneil S Paauwe

John D Wiedemer

Jesse Ian Berube

Christopher J Lehane

Jesus S Lopez

Ravi Mandya Kumar

Nicholas Andrew Kesler

William Oldach

An apparatus that includes a conduit having a first end, a second end, and a longitudinal axis. The conduit may define an inner channel and may be configured to extend through a vane cavity of a vane. The apparatus may further include a damping finger that includes a first portion coupled to the conduit and a second portion diverging outward at an angled orientation from the conduit. The damping finger may be resiliently flexible and the second portion of the damping finger may be configured to contact an inner surface of the vane.

Conduit with damping fingers

Platforms with curved side edges and gas turbine engine systems involving such platforms are provided. In this regard, a representative airfoil assembly for a gas turbine engine includes: a platform having a gas path side, a non-gas path side, a leading edge, a trailing edge, a first side edge extending between the leading edge and the trailing edge and exhibiting a first curve along a length thereof, and a second side edge extending between the leading edge and the trailing edge and exhibiting a second curve along a length thereof; and an airfoil extending from the gas path side of the platform; the platform and the airfoil exhibiting a unitary construction such that a continuous exterior surface blends from the airfoil to the platform.

Platforms with curved side edges and gas turbine engine systems involving such platforms

Convective cooling of gas turbine engine airfoil platforms is enhanced by grooving the interface of the platforms with corresponding platform-to-platform seals, thereby accelerating cooling airflow over the platform surfaces.

Turbine airfoil with platform cooling

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Windsor Locks, CT, United States of America

Scott D Hjelm