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:
Dec. 02, 2025
Filed:
Feb. 07, 2023
Safran Aircraft Engines, Paris, FR;
Patrick Jean Laurent Sultana, Moissy-Cramayel, FR;
Matthieu Simon, Moissy-Cramayel, FR;
Loic Ansart, Moissy-Cramayel, FR;
Joao Antonio Amorim, Moissy-Cramayel, FR;
SAFRAN AIRCRAFT ENGINES, Paris, FR;
Abstract
The present invention relates to a turbine rotor () comprising a rotor disc (), provided at its periphery with a plurality of axial cells () for receiving a bilobed root () of a blade (), each cell () comprising a radially inner cavity () and a radially outer cavity (). This rotor is characterised in that it comprises a ring () for axially retaining the blade roots and an annular flange (), the ring () comprising a radially inner portion provided with notches () and being arranged against the upstream face () of the disc (), so that each of its notches () is located opposite a cell () of the disc (), the flange () being secured against the upstream face of the ring (), forming a space (E) with said disc (), and comprising at least one air-intake opening () which opens into said space (E), and in that each blade () comprises a groove () for receiving the outer circumferential edge () of said ring ().