Patent · US Active

Turbomachines and epicyclic gear assemblies with axially offset sun and ring gears

US11542829B2 · kind B2 · utility

4Cited by

7References

20Claims

0Family size

Assignee

GE AVIO S.R.L. · IT

Inventors

Marco Facchini · Rivalta di Torino, IT
Gianluca Andrei · Rivalta di Torino, IT
Paolo Altamura · Monopoli, IT

Key dates

Filing date	May 4, 2021
Grant date	Jan 3, 2023
Priority date	—
Expiry date	May 4, 2041

Classification

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

Abstract

A turbomachine engine includes a fan assembly and a core engine comprising a turbine and an input shaft rotatable with the turbine is provided. A single-stage epicyclic gear assembly receives the input shaft at a first speed and drives an output shaft coupled to the fan assembly at a second speed. A sun gear rotates about a longitudinal centerline of the gear assembly and has a sun gear-mesh region along the longitudinal centerline of the gear assembly where the sun gear is configured to contact a plurality of planet gears. A ring gear-mesh region is provided along the longitudinal centerline of the gear assembly where a ring gear is configured to contact the plurality of planet gears. The sun gear-mesh region is axially offset from the ring gear-mesh region along the longitudinal centerline.

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