The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 26, 2025
Filed:
Oct. 06, 2023
Pratt & Whitney Canada Corp., Longueuil, CA;
Abdelkhalek Saadi, Lasalle, CA;
Pratt & Whitney Canada Corp., Longueuil, CA;
Abstract
A gas turbine engine is provided that includes a static structure, a rotating shaft, and a bearing assembly. The bearing assembly includes a bearing and a seal subassembly. The bearing has inner and outer races and a plurality of roller elements. The outer race includes a shield member. The seal subassembly includes a seal element coupled with the static structure and a seal runner coupled with the rotating shaft. Portions of the seal runner, the outer race, and the inner race define a first bearing cavity. Portions of the seal runner, the outer race, the seal element, and the static structure define a lateral bearing cavity. The lateral bearing cavity is disposed axially between the first bearing cavity and the seal element. The outer race includes a plurality of drain holes that provide fluid communication between the first bearing cavity and the lateral bearing cavity.