Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Jonathan Logan Miller
Jeffrey E. Tessier
Jonathan F. Zimmitti
Benstone Schwartz
Date of Patent
October 3, 2023
Patent Application Number
17546762
Date Filed
December 9, 2021
Patent Citations
Patent Primary Examiner
Patent abstract
A bearing compartment seal for a gas turbine engine includes a seal ring that defines an axis and has a radially inward facing sealing surface. A seal runner is configured to rotate relative to the seal ring. The seal runner has a runner surface facing the radially inward facing sealing surface. A plurality of grooves are spaced circumferentially along the runner surface. The plurality of grooves have a length in an axial direction that is at least 50% of an axial length of the runner surface.
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