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:
Sep. 23, 2025
Filed:
Dec. 20, 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);
GENERAL ELECTRIC COMPANY, Evendale, OH (US);
GE AVIO S.R.L., Rivalta di Torino, IT;
Abstract
A gearbox assembly includes a gearbox 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 Vis a gutter volume of the gutter and Vis a gearbox volume of the gearbox. A gas turbine engine includes the gearbox assembly and a lubrication system. The lubrication system includes a tank that stores a lubricant therein, one or more lubricant pumps for generating a flow of lubricant from the tank to the gearbox assembly, and a flow rate control valve. The flow rate control valve has a flow inlet and a flow outlet and defines a variable throughput from the flow inlet to the flow outlet for controlling a flowrate of the lubricant to the gearbox assembly.