Locking structure for an alignment bushing of a combustion turbine engine
AssigneeWestinghouse Electric Corp.
InventorsJohn P. Donlan, Alfred R. Krauss
Life of this patent
Estimating the term…
Abstract
Locking structure for maintaining a set position in assembling an annular seal ring housing to a stationary inner shroud of an annular array of vane segments of a combustion turbine engine. This permits an adjustable assembly for obtaining concentricity between the seal and the adjacent rotor structure. Thus, the seal ring is mounted to the vane segments through an adjustable mounting arrangement that, upon assembly of the two, permits the seal ring to be aligned concentrically about the rotor. Once concentricity is obtained, the mounting components must be locked in such position to maintain such concentricity. The present invention provides a bracket attached to the adjustable mounting structure to lock it in the set position.
Claims5
In an adjustable mounting arrangement between an axially facing adjacent arcuate seal ring and an inner shroud of a combustion turbine engine to permit concentric alignment of the seal ring with an adjacent rotor, means for locking said adjustable arrangement in a final concentric position, wherein said mounting arrangement includes an axially extending rotatable bushing in said seal ring and a pin, offset from the center of rotation of said bushing, projecting axially through said bushing and having one end slidably received within a radially extending slot in said shroud and wherein said locking means comprises:
- means engaging the other end of said projecting pin, said means extending to a position adjacent the face of said seal ring opposite said shroud;
- and,
- means for securing the engaging means to said sealing face.
Dependencies are inferred from the claim text.