The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 08, 2020
Filed:
Feb. 08, 2017
Safran Aircraft Engines, Paris, FR;
Guillaume Patrice Kubiak, Moissy-Cramayel, FR;
Nils Edouard Romain Bordoni, Moissy-Cramayel, FR;
Michel Gilbert Roland Brault, Moissy-Cramayel, FR;
Romain Guillaume Cuvillier, Moissy-Cramayel, FR;
Benoit Jean Henri Gomanne, Moissy-Cramayel, FR;
Arnaud Nicolas Negri, Moissy-Cramayel, FR;
Nicolas Xavier Trappier, Moissy-Cramayel, FR;
SAFRAN AIRCRAFT ENGINES, Paris, FR;
Abstract
The invention relates to a system for rotating a fan () of a turbojet engine () about a first rotation axis Ω, including a reduction gear () made up of a planetary gearset placed at the centre of the fan (), which includes: a central sun gear (); an outer planet gear () attached to the fan (); at least one satellite gear () arranged between the central sun gear () and the outer planet gear () in order to transmit a rotary movement between the central sun gear () and the outer planet gear (); characterised in that the outer planet gear () includes an inner portion (a) which meshes with the satellite gear (), as well as an outer portion (b) to which blades () of the fan () are directly attached.