Is a
Patent attributes
Patent Applicant
Patent Jurisdiction
Patent Number
Patent Inventor Names
Nasr A. Shuaib0
Michael A Beinor0
Timothy J. Castaldo0
Christopher M. Valva0
Mitchell D. Panton0
Date of Patent
January 23, 2024
0Patent Application Number
179920190
Date Filed
November 22, 2022
0Patent Citations
Patent Primary Examiner
Patent abstract
A turbomachine has a bearing in a bearing compartment. A first seal system isolates the bearing compartment and has: a first runner; a second runner; an inner seal encircling the first runner; and an outer seal encircling the second runner. The inner seal has a static clearance with the first runner. The outer seal has a static clearance with the second runner, greater than the inner seal static clearance. The first runner has an inner portion cantilevered inward. The second runner has an outer portion cantilevered outward.
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