US12571315USUSPTO Grant XML

Blade with damper land

A gas turbine engine blade includes a platform; an airfoil section extending from the platform in a first direction; a mount extending from the platform in a second direction opposite the first direction; a damper land on the platform, the damper land having a relatively smoother outward-facing surface than the platform; and a damper interfacing with the outward-facing surface of the damper land. A method of making a gas turbine engine blade is also disclosed.

Patent

Brief

Patent brief

Problem

How can vibration in electric motors and rotors be reduced?

Novelty

method of making a gas turbine engine blade is also disclosed.

Uses

Motor mounts, Equipment isolation, Compact machinery

Assignee

RTX Corporation

Published

Mar 10, 2026

Inventors

Robert A. White, III

Domain

Electromechanical systems

Plain-English summary

Problem

How can vibration in electric motors and rotors be reduced?

Solution

gas turbine engine blade includes a platform; an airfoil section extending from the platform in a first direction; a mount extending from the platform in a second direction opposite the first direction; a damper land on the platform, the damper land having a relatively smoother outward-facing surface than the platform; and a damper interfacing with the outward-facing surface of the damper land.

Key novelty

method of making a gas turbine engine blade is also disclosed.

Applications

Motor mountsEquipment isolationCompact machinery

Relevant search intents

damper

Claims preview

1. A gas turbine engine blade, comprising: a platform; an airfoil section extending from the platform in a first direction; a mount extending from the platform in a second direction opposite the first direction; a damper land fixed on the platform, the damper land having a relatively smoother outward-facing surface than the platform; a damper interfacing with the outward-facing surface of the damper land; wherein the blade is one of a ceramic matrix composite blade or a monolithic ceramic blade; and the damper land extending beyond an inner surface of the platform, and in the second direction. 2. The gas turbine engine blade of claim 1 , wherein the damper land includes at least one of rare earth silicates, alkaline earth silicates, alkaline earth aluminosilicates, yttria-stabilized zirconia, alumina-stabilized zirconia, mullite, titania, chromia, silicon, silicon oxides, silicon carbides, silicon oxycarbides, silicon nitride, silicon-aluminum-oxygen-nitrogen, barium-magnesium aluminosilicate, hafnium oxides such as hafnon, hafnium-silicon oxides, alumina-stabilized zirconia, zirconium oxides including zircon, yttrium oxides such as yttria, and combinations thereof. 3. The gas turbine engine blade of claim 2 , wherein the damper land includes at least one of hafnon, zircon, and mullite.

Linked approaches

Damping mounts

Isolation and damping structures that absorb motor vibration.

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