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:
Mar. 10, 2020
Filed:
Apr. 14, 2016
Safran Aircraft Engines, Paris, FR;
Didier Rene Andre Escure, Moissy-Cramayel, FR;
Jean-Francois Endy Bersot, Moissy-Cramayel, FR;
Tewfik Boudebiza, Moissy-Cramayel, FR;
Gilles Alain Charier, Moissy-Cramayel, FR;
Thomas Julien Nguyen Van, Moissy-Cramayel, FR;
Jean Philippe Pierre-Alain Reigner, Moissy-Cramayel, FR;
SAFRAN AIRCRAFT ENGINES, Paris, FR;
Abstract
Engine comprising a propeller unit with a pair of contrarotating propellers (), a gas generator () supplying a power turbine (), the pair of propellers being rotationally driven by the shaft (A) of the power turbine via a speed reduction gearbox, the axis of rotation (XX) of the pair of propellers not being coaxial with that (YY) of the power turbine, the speed reduction gearbox comprising a differential gearset () and a first stage () comprising a simple gearset connecting the turbine shaft (A) and the differential gearset (), the engine air intake comprising an air intake duct (), the air intake duct () being in the shape of a lobe adjacent to the assembly formed by the simple gearset and the differential gearset ().