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. 30, 2021
Filed:
Mar. 22, 2016
Safran, Paris, FR;
Safran Aircraft Engines, Paris, FR;
Sylvain Paquin, Herblay, FR;
Charlotte Marie Dujol, Moissy-Cramayel, FR;
Patrice Eneau, Moissy-Cramayel, FR;
Hugues Denis Joubert, Paris, FR;
Adrien Bernard Vincent Rollinger, Joinville-le-Pont, FR;
SAFRAN AIRCRAFT ENGINES, Paris, FR;
SAFRAN, Paris, FR;
Abstract
A ceramic core used for fabricating a hollow turbine blade for a turbine engine by using the lost-wax casting technique and shaped to constitute the cavities of the blade as a single element, includes, in order to feed the insides of these cavities jointly with cooling air, core portions that are to form first and second lateral cavities and that are connected to a core portion that is to form at least one central cavity, firstly in the core root via at least two ceramic junctions, and secondly at various heights up the core via a plurality of other ceramic junctions of positioning that defines the thickness of the internal partitions of the blade, while also ensuring additional cooling air for predetermined critical zones of the first and second lateral cavities.