Patent · US Active

Gas turbine engine with staggered epicyclic gearbox

US11879397B2 · kind B2 · utility

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19Claims

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Assignee

ROLLS-ROYCE DEUTSCHLAND LTD & CO KG · DE

Inventors

Greg Blake · Berlin, DE
Hannes WÜSTENBERG · Berlin, DE
Johannes Scobel · Berlin, DE

Key dates

Filing date	Jan 12, 2021
Grant date	Jan 23, 2024
Priority date	—
Expiry date	Jan 12, 2041

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T50/60
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

Embodiments of the invention are shown in the figures, where a gas turbine 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 including a plurality of fan blades; and a gearbox that receives an input from the core shaft and outputs drive to the fan so as to drive the fan about a rotational axis at a lower rotational speed than the core shaft, wherein the gearbox is an epicyclic gearbox with a plurality of planet gears arranged in first and second sets of planet gears, the planet gears of the first set being positioned displaced relative to the planet gears of the second set in a direction parallel to the rotational axis.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.