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US 9,810,075 B2Granted
Faceted turbine blade damper-seal
AssigneeUnited Technologies Corporation
InventorsKyle C. Lana, John E. Paul
Life of this patent
Estimating the term…
Abstract
A damper seal received in a cavity of a turbine blade includes a central body with two ends and a two sides. A portion extends from each end, one side has a faceted edge, and a projection extends from the other side to receive a lug of the turbine blade to align the damper seal relative to the turbine blade.
Claims17
A damper seal received in a cavity of a turbine blade, the damper seal comprising:
- a central body portion having a first longitudinal end region, an opposing second longitudinal end region, a first side region, an opposing second side region;
- a first portion extending from the first side region at the first longitudinal end region of the central body portion, the first portion defining a first tang, the first tang including a first edge that extends linearly back towards the central body portion in the direction of the second longitudinal end region;
- a second portion extending from the first side region at the opposing second longitudinal end region of the central body portion, the second portion defining a second tang, the second tang including a second edge that extends linearly back towards the central body portion in the direction of the first longitudinal end region;
- and
- a third portion extending from the second side region that defines an opening that is configured to receive a lug of the turbine blade to align the damper seal relative to the turbine blade;
- wherein the first side region includes a faceted edge that includes the first edge on the first portion, the second edge on the second portion, and a linear edge on the central body between the first edge and the second edge, whereby the faceted edge defines a first flat face adjacent to a second flat face adjacent to a third flat face.
3 more elements
A turbine blade comprising:
- a root received in a slot of a turbine disk;
- a blade;
- a platform located between the root and the blade having a lower surface;
- and
- a damper seal is located adjacent the lower surface of the platform, the damper seal including:
- a central body portion having a first longitudinal end region, an opposing second longitudinal end region, a first side region, an opposing second side region;
- a first portion extending generally downward from the first side region at the first longitudinal end region of the central body portion, the first portion defining a first tang, the first tang including a first edge that extends linearly back towards the central body portion in the direction of the second longitudinal end region;
- a second portion extending generally downward from the opposing second longitudinal end region of the central body portion, the second portion defining a second tang, the second tang including a second edge that extends linearly back towards the central body portion in the direction of the first longitudinal end region;
- and
- a third portion extending from the second side region that defines an opening that is configured to receive a lug of the turbine blade to align the damper seal relative to the turbine blade;
- wherein the first side region includes a faceted edge that includes the first edge on the first portion, the second edge on the second portion, and a linear edge on the central body between the first edge and the second edge, whereby the faceted edge defines a first flat face adjacent to a second flat face adjacent to a third flat face.
8 more elements
Dependencies are inferred from the claim text.