Patent · US Active

Planetary gearbox and gas turbine engine having planetary gearbox

US12049848B2 · kind B2 · utility

0Cited by

3References

20Claims

0Family size

Assignee

ROLLS-ROYCE DEUTSCHLAND LTD & CO KG · DE

Inventors

Michael Graber · Berlin, DE
Greg Blake · Berlin, DE

Key dates

Filing date	Oct 7, 2020
Grant date	Jul 30, 2024
Priority date	—
Expiry date	Nov 26, 2040

Classification

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

Abstract

The invention relates to a planetary gearbox in a gas turbine engine wherein a plurality of planetary gears are each mounted on a planetary gear bearing journal by a slide bearing, characterized in that a bushing is arranged in an inner bore of at least one planetary gear, which bushing spatially separates the sliding surface of the slide bearing from the inner bore of the planetary gear and the bushing is designed as a replacement part, in particular as a sacrificial part. The invention also relates to a gas turbine engine.

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