Hydrodynamic foil face seal
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 28, 2007
Grant Date -
Oct 21, 2004
app pub date -
Jul 3, 2002
filing date -
Jul 6, 2001
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A foil thrust bearing forms the primary rotating interface for a film riding face seal. This face seal includes a spring system that will allow the entire assembly to translate axially relative to a static attachment. The complete assembly will form a hybrid foil/film riding face seal that shows much promise at being sufficiently flexible to enable operation in a gas turbine engine. The seal includes a flexible top plate having a non-flat surface under its working conditions, and a spring support system to allow the top plate to accommodate axial excursions and out-of-flat distortions.
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