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:
Mar. 31, 2026
Filed:
Apr. 01, 2025
Pratt & Whitney Canada Corp., Longueuil, CA;
Eric S. Durocher, Boucherville, CA;
Pratt & Whitney Canada Corp., Longueuil, CA;
Abstract
A gas turbine engine is provided that includes a compressor section, a combustor, a turbine section, an engine shaft, a shaft retention system, and an axial centerline. The engine shaft is engaged with the compressor section and the turbine section. The engine shaft has an aft end and axially extends along the axial centerline of the engine. The shaft retention system includes a shaft nut and a shaft retainer. The shaft nut is attached to the aft end of the engine shaft. The shaft retainer is mounted for axial translation normal to the axial centerline. The shaft retainer is disposable in an engaged configuration wherein the shaft retainer is coupled with the shaft nut, and in a disengaged configuration wherein the shaft retainer is disengaged with the shaft nut.