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:
Jan. 06, 2026
Filed:
Dec. 31, 2024
General Electric Company, Schenectady, NY (US);
Kedar S. Vaidya, Niskayuna, NY (US);
Bugra H. Ertas, Niskayuna, NY (US);
Arthur W. Sibbach, Boxford, MA (US);
General Electric Company, Evendale, OH (US);
Abstract
A gas turbine engine includes a gear assembly including planet gears arranged in a planetary configuration. Each planet gear includes a pin, a gearbox bearing, and a planet gear rim. An inner surface of the planet gear rim and an outer surface of the pin define a clearance therebetween that is greater than zero when radial, pinch, tangential, and centrifugal component forces are applied to the planet gear. Each planet gear includes a pin clearance parameter greater than or equal to zero rpm and less than or equal to 3,334 rpm. The gas turbine engine includes a primary lubrication system and an auxiliary lubrication system. The primary lubrication system supplies lubricant to the gearbox bearing of at least one planet gear during normal operation of the gas turbine engine. The auxiliary lubrication system supplies lubricant when the primary lubrication system is unable to supply lubricant.