Seal assembly and rotary machine containing such seal assembly

Details Seal assembly and rotary machine containing such seal assembly Seal assembly and rotary machine containing such seal assembly

1998-08-10

1999-10-26

Knight, Anthony

Seal for a joint or juncture

Seal between relatively movable parts

Close proximity seal

277421, 277422, 4151745, F16J 15447

Patent

active

059714000

ABSTRACT:
A seal assembly and a rotary machine, such as a steam turbine, containing the seal assembly. A casing circumferentially surrounds a rotor and includes a circumferential channel open to the rotor. Seal segments are circumferentially arrayed in the channel and are movable between radially inward and outward positions. Circumferentially adjacent seal segments have circumferentially opposing surface grooves. A resilient and imperforate member is engaged in the grooves of circumferentially-adjacent seal segments circumferentially urging apart such segments and providing sealing between such segments.

REFERENCES:
patent: 2398270 (1946-04-01), Zahodiakin
patent: 3625526 (1971-12-01), McCormick
patent: 4436311 (1984-03-01), Brandon
patent: 4551064 (1985-11-01), Pask
patent: 4752184 (1988-06-01), Liang
patent: 4916892 (1990-04-01), Pope
patent: 5002288 (1991-03-01), Morrison et al.
patent: 5395124 (1995-03-01), Brandon
patent: 5464226 (1995-11-01), Dalton
patent: 5487549 (1996-01-01), Dalton et al.
patent: 5810365 (1998-09-01), Brandon et al.

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