Gas turbine engine bearing compartment seal

Details Gas turbine engine bearing compartment seal Gas turbine engine bearing compartment seal

1996-08-30

2000-10-17

DePumpo, Daniel G.

Seal for a joint or juncture

Seal between relatively movable parts

Close proximity seal

277418, F16J 15447

Patent

active

061319147

ABSTRACT:
A seal for coaxial inner and outer spools rotatable about an axis is provided which includes a flange having a catch surface. The flange is attached to the outer spool, and is disposed between the inner and outer spools such that the catch surface is in close proximity to the inner spool. The catch surface, which includes a seal end and a discharge end, is canted from the axis between the seal end and the discharge end. Liquid disposed between the inner spool and the catch surface is forced against the catch surface by centrifugal force when the spools rotate at a sufficient speed. The liquid is subsequently driven axially along the canted catch surface in the from the seal end to the discharge end, toward the bearing compartment.

REFERENCES:
patent: 2020002 (1935-11-01), Schweich
patent: 4453784 (1984-06-01), Kildea et al.
patent: 4468066 (1984-08-01), Alcorta et al.
patent: 4754984 (1988-07-01), Keba
patent: 5088889 (1992-02-01), Wolff
patent: 5211535 (1993-05-01), Martin et al.
patent: 5239750 (1993-08-01), Wright

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