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. 28, 2023
Filed:
Dec. 01, 2020
Safran Aircraft Engines, Paris, FR;
Paul Ghislain Albert Levisse, Paris, FR;
Olivier Belmonte, Paris, FR;
Fabien Roger Gaston Caty, Paris, FR;
Amelie Argie Antoinette Chassagne, Paris, FR;
SAFRAN AIRCRAFT ENGINES, Paris, FR;
Abstract
Disclosed is a turbomachine () with counter-rotating turbine for an aircraft, comprising: —a high-pressure body, —a low-pressure counter-rotating turbine (), —a planetary-type mechanical epicyclic reduction gear (), —a guide bearings (-) for the turbine shafts (), characterised in that said reduction gear () and certain of the bearings () are housed in a lubrication chamber () supplied with oil and comprising dynamic seals (-), and in that the turbomachine comprises circuits (C, C) for pressurising these seals.