Patent · US Active

Planetary gear system and gas turbine engine with a planetary gear system

US10422422B2 · kind B2 · utility

0Cited by

3References

14Claims

0Family size

Assignee

ROLLS-ROYCE DEUTSCHLAND LTD & CO KG · DE

Inventors

Domenico SCOGNAMIGLIO · Rangsdorf, DE
Alessandro Polacco · Berlin, DE
Jan Schwarze · Krefeld, DE

Key dates

Filing date	Jan 30, 2018
Grant date	Sep 24, 2019
Priority date	—
Expiry date	Feb 19, 2038

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF05D2260/40311
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A planetary gear system for a gas turbine engine with a plurality of planetary gears coupled to a carrier device, with front planetary gears mounted on pins in a front row and aft planetary gears mounted on pins in an aft row, the two rows being parallel to each other in the axial direction of the planetary gear system. The carrier device includes a base structure being in one piece with the carrier device, the base structure positioned around a rotational axis of the gas turbine engine. The pins are coupled to the carrier device through first and second extension elements for the positioning of the pins relative to the base structure. The second extension elements axially extending the respective pins further away from the base structure than the pins positioned by the first extension elements.

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