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:
Aug. 20, 2024
Filed:
Apr. 03, 2023
Applicant:
Rolls-royce Plc, London, GB;
Inventor:
Mark Spruce, Derby, GB;
Assignee:
ROLLS-ROYCE plc, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02C 7/36 (2006.01); F16H 57/02 (2012.01); F16H 57/08 (2006.01);
U.S. Cl.
CPC ...
F02C 7/36 (2013.01); F16H 57/082 (2013.01); F05D 2200/14 (2013.01); F05D 2220/323 (2013.01); F05D 2260/40311 (2013.01); F05D 2300/501 (2013.01); F16H 2057/02043 (2013.01);
Abstract
An engine for an aircraft includes an engine core having a turbine, a compressor, and a core shaft connecting the turbine to the compressor; a fan located upstream of the engine core, the fan having a plurality of fan blades; and a gearbox. The gearbox is an epicyclic gearbox and comprises a sun gear, a plurality of planet gears, a ring gear, and a planet carrier on which the planet gears are mounted. The radial bending stiffness of the planet carrier is equal to or greater than 1.20×10N/m, and/or the tilt stiffness of the planet carrier is greater than or equal to 6.00×10Nm/rad. A method of operation of such an engine is also disclosed.