Labyrinth seal for steam turbines

Details Labyrinth seal for steam turbines Labyrinth seal for steam turbines

1990-12-24

1991-08-06

Cuchlinski, Jr., William A.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 53, 415112, 4151694, 4151735, 4151745, F16J 15447

Patent

active

050371142

ABSTRACT:
A honeycomb labyrinth seal includes a downstream-most row of honeycomb cells which extends beyond the exit edge of a base portion, so that a portion of each cell of the downstream-most row of honeycomb cells overhangs the base portion by an amount approximately equal to one half the width of the drainage passages formed in the base portion.

REFERENCES:
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patent: 3632225 (1972-01-01), Smith et al.
patent: 3897169 (1975-07-01), Fowler
patent: 4046388 (1977-09-01), Meyer
patent: 4162077 (1979-07-01), Crow et al.
patent: 4320903 (1982-03-01), Ayache et al.
patent: 4416457 (1983-11-01), McGinnis et al.
patent: 4465429 (1984-08-01), Martin et al.
patent: 4477089 (1984-10-01), Hoffman et al.
patent: 4513975 (1985-04-01), Hauser et al.
patent: 4781530 (1988-11-01), Lauterbach et al.

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