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:
Oct. 12, 2021
Filed:
Jul. 19, 2017
Safran Aircraft Engines, Paris, FR;
Cédric Zaccardi, Saint Maur des Fosses, FR;
Christophe Paul Jacquemard, Hericy, FR;
Thierry Georges Paul Papin, Varennes-Jarcy, FR;
Christophe Marcel Lucien Perdrigeon, Ballainvilliers, FR;
SAFRAN AIRCRAFT ENGINES, Paris, FR;
Abstract
The invention relates to an intermediate case () for a twin spool turbomachine for an aircraft, comprising a hub (), an outer shell () and outlet guide vanes () installed at their ends on the hub and on the outer shell, and each of at least some of the outlet guide vanes () performing a heat exchanger function and comprising a lubricant passage () designed to be cooled by the fan flow () following an outer surface of the outlet guide vane. According to the invention, the case also comprises at least one lubricant duct () passing along a circumferential direction of the hub () and at least part of which is made from a single casting with the hub, the lubricant duct () having at least one lateral opening communicating with the lubricant passage () of at least one of the vanes ().