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:
Jun. 03, 2025
Filed:
Dec. 06, 2024
General Electric Company, Evendale, OH (US);
GE Avio S.r.l., Rivalta di Torino, IT;
Bugra H. Ertas, Niskayuna, NY (US);
Xiaohua Zhang, Glenville, NY (US);
Miriam Manzoni, Rivalta di Torino, IT;
Flavia Turi, Bari, IT;
Andrea Piazza, Turin, IT;
Arthur W. Sibbach, Boxford, MA (US);
Brandon W. Miller, Middletown, OH (US);
GENERAL ELECTRIC COMPANY, Evendale, OH (US);
GE AVIO S.R.L., Rivalta di Torino, IT;
Abstract
A gearbox assembly includes a gearbox having a gear assembly and a gutter for collecting a gearbox lubricant scavenge flow from the gearbox. The gutter is characterized by a lubricant extraction volume ratio between 0.01 and 0.3, inclusive of the endpoints. The lubricant extraction volume ratio is defined by is a gutter volume of the gutter and Vis a gearbox volume. A gas turbine engine includes the gearbox assembly and a lubrication system. The lubrication system includes a sump that is a primary reservoir having a first lubricant level and a secondary reservoir in the gearbox assembly. The secondary reservoir has a second lubricant level. The lubrication system fills the secondary reservoir with a lubricant between the first lubricant level and the second lubricant level. The gear assembly collects the lubricant in the secondary reservoir to supply the lubricant to the gear assembly.