High power epicyclic gearbox and operation thereof
US10808626B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 3, 2020 |
| Grant date | Oct 20, 2020 |
| Priority date | — |
| Expiry date | Mar 3, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T50/60
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An engine for an aircraft includes an engine core including a turbine, a compressor, and a core shaft connecting the turbine to the compressor; a fan located upstream of the engine core, the fan including a plurality of fan blades; and a gearbox. The gearbox is arranged to receive an input from a core shaft and to output drive to a fan to drive the fan at a lower rotational speed than the core shaft. The gearbox is an epicyclic gearbox and includes a sun gear, a plurality of planet gears, a ring gear, and a planet carrier on which the planet gears are mounted. A ratio of radial bending stiffness of the planet carrier to torsional stiffness of the planet carrier is within a specified range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.