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:
Apr. 29, 2025
Filed:
Feb. 28, 2024
Pratt & Whitney Canada Corp., Longueuil, CA;
Krzysztof Gajowniczek, Rzeszow, PL;
PRATT & WHITNEY CANADA CORP., Longueuil, CA;
Abstract
A rotor assembly for an aircraft engine that includes a compressor rotor and a turbine rotor mounted to a shaft for rotation about a central axis, and a gyroscopic stiffener also mounted to shaft. The gyroscopic stiffener includes a gyroscopic disk extending radially away from the shaft and located at an axial position that is spaced apart from the bearings, and an attachment mechanism connecting the gyroscopic disk to the rotor assembly. The attachment mechanism allows the gyroscopic disk to move in one of two degrees of freedom relative to the shaft, the two degrees of freedom including a rotational degree of freedom wherein the gyroscopic disk is rotatable at a greater rotational speed that a remainder of the rotor assembly, and an angular degree of freedom wherein the gyroscopic disk is orientated at a precession deflection angle relative to the plane and/or the central axis.