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:
May. 12, 2026
Filed:
Jun. 28, 2023
Safran Aircraft Engines, Paris, FR;
Vincent Goyon, Moissy-Cramayel, FR;
Florence Irène Noëlle Leutard, Moissy-Cramayel, FR;
Thomas Laurent Frederic Gauduchon, Moissy-Cramayel, FR;
Antoine Lurin, Moissy-Cramayel, FR;
Thierry Fachat, Moissy-Cramayel, FR;
Michael Oyharcabal, Moissy-Cramayel, FR;
Kevin Bolzer, Moissy-Cramayel, FR;
SAFRAN AIRCRAFT ENGINES, Paris, FR;
Abstract
A turbomachine includes an oil-recovery device having, between mutually rotatable first and second members, a tubular tab of the first member surrounded by a tubular extension of a shroud of the second member. The tab defines, with a shroud of the first member, an interface zone. The tubular extension includes an outer groove opposite the tab, and the extension axially surrounds the tubular tab beyond an axial half-length of the tab. The extension has an inner diameter equal to an inner diameter of the outer shroud of the second member and has an outer diameter smaller than or equal to an outer diameter of the outer shroud. The second member has an annular groove with a rectangular cross-section.