Gearbox and a geared gas turbine engine
US10859155B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 6, 2019 |
| Grant date | Dec 8, 2020 |
| Priority date | — |
| Expiry date | Aug 15, 2039 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2260/98
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A gearbox includes a sun gear, a plurality of planet gears, an annulus gear and a planet carrier. The planet carrier includes a first ring, second ring spaced axially from the first ring, a plurality of circumferentially spaced axles and a plurality of circumferentially spaced support structures extending axially between and secured to the first ring and second ring. Each planet gear is rotatably mounted on a respective one of the axles. The first ring has a plurality of circumferentially spaced recesses and the second ring has a plurality of circumferentially spaced recesses. Each recess in the second ring is aligned with a corresponding one of the recesses in the first ring. A first end of each support structure locates in a recess in the first ring. A second end of each support structure locates in a recess in the second ring. Each support structure comprises a fused powdered material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.