Turbine blade nested seal damper assembly
AssigneeUnited Technologies Corporation
InventorJeffrey Beattie
Life of this patent
Estimating the term…
Abstract
A turbine blade damper seal assembly includes a seal and a damper that both abut a radially outermost non-gas path surface. The seal is fabricated from a plastically deformable material and nests within a recess of the damper. The damper is fabricated from a rigid material that absorbs vibrational energy generated during operation. The recess within the damper provides for both the damper and the seal to be positioned at the radially outermost non-gas path surface.
Claims27
A turbine assembly comprising:
- a plurality of turbine blades spaced apart from each other, wherein each of said plurality of turbine blades includes a platform structure including an inner surface radially inboard of an outer surface;
- a damper comprising a portion disposed adjacent said inner surface and a recess extending axially between rub surfaces;
- and
- a seal nested with said damper and disposed adjacent said inner surface and within the recess between the rub surfaces, wherein the seal is longer than the damper.
A damper seal assembly for a turbine blade comprising:
- a damper comprising two contact surface abutting an inner surfaces of a cavity within a root of the turbine blade, and a recess disposed between the two contact surfaces;
- and
- a seal nested with said recess of the damper and abutting the inner surface of the cavity within the root of the turbine blade.
A damper seal assembly comprising:
- a damper comprising a body and at least two rub surfaces extending from the body and separated from each other by a recess;
- and
- a seal disposed within the recess comprising a forward portion with fingers projecting therefrom and a rearward portion extending axially a length beyond the damper and including a projection at least in part co-directionally with the fingers.
A damper comprising:
- a body;
- at least two rub surfaces extending from the body and separate from each other by a recess;
- a pair of retention arms extending from a forward portion of the body;
- and
- an alignment feature that juts from the body on opposing sides of the body.
A seal comprising:
- a forward segment including a pair of fingers projecting from each side of the seal, wherein the pair of fingers are spaced a distance from each other and extend downwardly from the seal;
- and
- a rearward segment spaced an axial distance from the forward segment that includes a projection at least in part extending co-directionally with each of the pair of fingers.
Dependencies are inferred from the claim text.