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:
Dec. 24, 2024
Filed:
Dec. 29, 2023
Pratt & Whitney Canada Corp., Longueuil, CA;
Bruno Martin, Saint-Jean sur le Richelieu, CA;
Michel Desjardins, Saint-Hubert, CA;
Pratt & Whitney Canada Corp., Longueuil, CA;
Abstract
A reduction gearbox is provided that includes a sun gear, planet gear assemblies, first and second ring gears, and a ring gear positional alignment system. Each planet gear assembly includes a main gear and first and second lateral gears coupled to one another. The ring gear positional alignment system includes a system controller, a ring gear actuator, and a sensor. The ring gear actuator is engaged with the first ring gear and is configured to rotate the first ring gear relative to the second ring gear. The system controller is in communication with the sensor, the ring gear actuator, and a non-transitory memory storing instructions. The instructions when executed cause the system controller to receive and process signals from the sensor relating to the position of the first ring gear, and control the ring gear actuator to selectively position the first ring gear using the signals from the sensor.