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:
Nov. 17, 2020
Filed:
Mar. 15, 2017
Safran Aircraft Engines, Paris, FR;
Romain Guillaume Cuvillier, Moissy-Cramayel, FR;
Nils Edouard Romain Bordoni, Moissy-Cramayel, FR;
Michel Gilbert Roland Brault, Moissy-Cramayel, FR;
Sebastien Christophe Chalaud, Moissy-Cramayel, FR;
Guillaume Patrice Kubiak, Moissy-Cramayel, FR;
Arnaud Nicolas Negri, Moissy-Cramayel, FR;
Nathalie Nowakowski, Moissy-Cramayel, FR;
Safran Aircraft Engines, Paris, FR;
Abstract
A bypass turbojet engine including a low pressure shaft supported by at least two low pressure bearings, a high pressure shaft supported by at least two high pressure bearings, a fan shaft supported by at least two fan bearings, a reduction system coupling the low pressure shaft, with the fan shaft, enclosures housing the low pressure bearings, the high pressure bearings, the fan bearings and the reduction system, and a lubrication assembly including a closed oil circuit configured to supply oil to the enclosures in order to cool the bearings and the reduction system and at most five recovery pumps configured to recover oil from the enclosures.