Patent ID: 6030175
Filing Date: 2000-02-29
Classification: F16J

Abstract:
A hybrid seal segment comprising:a) a first labyrinth-seal segment having a shape of generally an annular segment of a circular ring, having a longitudinal axis, and having at least one radially-inwardly-projecting and circumferentially-extending tooth;b) a second labyrinth-seal segment having a shape of generally an annular segment of a circular ring, generally coaxially-aligned with and axially spaced apart from said first labyrinth-seal segment, and having at least one radially-inwardly-projecting and circumferentially-extending tooth, wherein said first and second labyrinth-seal segments axially bound a circumferentially-extending channel therebetween;c) a mounting block disposed radially-outward from and attached to said first and second labyrinth-seal segments radially-outwardly bounding a circumferential portion of said channel, wherein said mounting block has opposing first and second circumferential ends, wherein said first circumferential end of said mounting block extends circumferentially beyond said first and second labyrinth-seal segments, and wherein said first and second labyrinth-seal segments extend circumferentially beyond said second circumferential end of said mounting block; andd) a brush-seal segment having a shape of generally an annular segment of a circular ring, generally coaxially aligned with said first and second labyrinth-seal segments, and having inwardly-extending bristles, wherein said brush-seal segment is disposed in said channel.