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. 25, 2022
Filed:
Apr. 15, 2019
Safran Aircraft Engines, Paris, FR;
Clément Jarrossay, Moissy-Cramayel, FR;
Sébastien Serge Francis Congratel, Moissy-Cramayel, FR;
Antoine Claude Michel Etienne Danis, Moissy-Cramayel, FR;
Clément Jean Pierre Duffau, Moissy-Cramayel, FR;
Lucien Henri Jacques Quennehen, Moissy-Cramayel, FR;
SAFRAN AIRCRAFT ENGINES, Paris, FR;
Abstract
A turbine of a turbo engine includes a casing and a nozzle stage including an outer metal shroud secured to the casing, an inner metal shroud, and a plurality of ring sectors made of ceramic-matrix composite material each having an internal platform, an external platform and at least one blade extending between the external platform and the internal platform and secured thereto. The internal platform of each sector includes a first and a second tab protruding radially inwardly from respectively an upstream end and a downstream end of the internal platform, and the inner shroud includes a shoulder protruding radially outwardly and being in abutment upstream against the first tab, and a clamp downstream of the shoulder including two jaws extending radially outwardly and held under stress towards each other against the second tab.