Seal accommodating thermal expansion between adjacent casings in

Rotary kinetic fluid motors or pumps – Including thermal expansion joint – Radially sliding

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Details

4151701, 4152141, 277 12, 277237R, 285187, 285320, 285363, 403 28, 403161, F01D 2526

Patent

active

051413930

ABSTRACT:
A casing around a turbine and a casing around discharge nozzles have a concentrically arranged shell portion. The seal contains internal pressure while accommodating eccentric, expansion and axial travel. Arcuate seal segments have one leg sealing against a radial surface extending from the inner shell and the other leg against the outer shell. A linkage guides travel of the segments.

REFERENCES:
patent: 2638743 (1953-05-01), Feilden
patent: 3698743 (1972-10-01), Sweet et al.
patent: 3853336 (1974-12-01), Shank
patent: 4098476 (1978-07-01), Jutte et al.
patent: 4184689 (1980-01-01), Brodell et al.
patent: 4696619 (1987-09-01), Lardellier
patent: 4921680 (1990-05-01), Bonk et al.
patent: 5088775 (1992-02-01), Corsmeier et al.

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