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:
Nov. 19, 2024
Filed:
May. 05, 2023
Pratt & Whitney Canada Corp., Longueuil, CA;
Michel Desjardins, St Hubert, CA;
Pratt & Whitney Canada Corp., Longueuil, CA;
Abstract
An assembly for an aircraft propulsion system includes an output shaft and a gear assembly. The gear assembly is configured to drive rotation of the output shaft. The gear assembly includes a sun gear, a plurality of planet gears, a first ring gear, and a second ring gear. The sun gear is rotatable about a rotational axis. The sun gear includes a first double helical gear pattern. Each planet gear of the plurality of planet gears includes a main gear, a first lateral gear, and a second lateral gear. The main gear includes a second double helical gear pattern engaged with the first double helical gear pattern. The first lateral gear is engaged with the first ring gear. The second lateral gear is engaged with the second ring gear. The first ring gear is axially spaced from the second ring gear relative to the rotational axis.