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:
Jan. 29, 2008
Filed:
Dec. 29, 2004
Guy Lapergue, Rubelles, FR;
Regis Servant, Vigneux sur Seine, FR;
Gael Bouchy, La Chapelle Iger, FR;
Guy Lapergue, Rubelles, FR;
Regis Servant, Vigneux sur Seine, FR;
Gael Bouchy, La Chapelle Iger, FR;
Snecma Moteurs, Paris, FR;
Abstract
A turbo-jet engine including a fixed structure and a fan rotor mounted on a drive shaft supported by a first bearing and a second bearing. The engine further comprises an axial retaining device configured to form an emergency bearing and to cooperate with the fixed structure and mounted rigidly to the drive shaft. The engine includes a structural flange on which the second bearing is fixed, and the axial retaining device comprises a retaining disk mounted on the drive shaft and configured to cooperate with a stop disk of the flange to axially retain the fan and form an emergency bearing.