United Technologies Corporation

Michael Gonsor

David P Houston

Wieslaw A Chlus

Natalie A Pelland

David Airey

Sanford E Kelley, Iii

Paul D Kudra

A damper for a turbine blade in a gas turbine engine includes a main body and may include at least one extended end which is adapted to clear radially inner surfaces of two adjacent blade platforms, to enhance the damping profile of the damper and radial support for a seal. An associated seal for the turbine blade includes supported and sealing portions and may further include a locator that interfaces with a catch structure on the blade to maintain the seal in the proper axial position with respect to the radially inner surfaces of the adjacent platforms. The seal may further include a projection adapted to provide interference with the blade in the event that the damper and seal are installed improperly with respect to each other to prevent such improper assembly.

Turbine blade damper and seal

An integral damper and seal for a turbine blade in a gas turbine engine includes a damper portion which contacts the platform and at least one sealing portion, angled radially inward from the damper portion, which makes contact with and seals against the platform.

An integrated damper and windage cover 52 has a windage cover portion 56 cantilevered at the upstream end, free of contact with the blade platform 24, 32. The contact portion 54 is rigid and bears against the underside of the blade platform 24, spanning blade platform clearance 50.

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Hebron, CT, United States of America

Michael Gonsor