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:
May. 26, 2026
Filed:
Jan. 27, 2025
Applicant:
General Electric Company, Schenectady, NY (US);
Inventors:
Kedar S. Vaidya, Niskayuna, NY (US);
Bugra H. Ertas, Niskayuna, NY (US);
Assignee:
General Electric Company, Evendale, OH (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02C 7/36 (2006.01); F02C 7/06 (2006.01); F16H 1/32 (2006.01); F16H 57/08 (2006.01);
U.S. Cl.
CPC ...
F02C 7/36 (2013.01); F02C 7/06 (2013.01); F16H 57/082 (2013.01); F05D 2240/50 (2013.01); F05D 2260/40311 (2013.01); F16H 1/32 (2013.01); F16H 2057/085 (2013.01);
Abstract
An epicyclic power gear box for a gas turbine engine delivers torque from a low speed shaft to the primary fan. The gear box includes a planet gear, a bearing pin for the planet gear, sun gear and ring gear. The planet gear and bearing pin are arranged so that a clearance between the two is maintained during a takeoff condition for the gas turbine engine. The planet gear can be characterized by a pin clearance parameter, a ratio of bending stress neutral axis radius to rim thickness, a gear pinch ratio, and/or a ratio of average rim radius to rim thickness.