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. 26, 2019
Filed:
Jun. 29, 2015
Safran Aircraft Engines, Paris, FR;
Francois Casteilla, Moissy-cramayel, FR;
Sebastien Digard Brou De Cuissart, Moissy-cramayel, FR;
Serge Alain Fargeas, Moissy-cramayel, FR;
Vincent Marc Herb, Moissy-cramayel, FR;
Chantal Sylvette Marie-Noël Langlois, Moissy-cramayel, FR;
SAFRAN AIRCRAFT ENGINES, Paris, FR;
Abstract
A method of fabricating a two-component blade for a gas turbine engine, the method including in succession: obtaining a blade profile made of ceramic material having a hole passing right through the blade profile in its length direction so as to form a longitudinal channel opening out into a top cavity; positioning and maintaining the blade profile in a mold so as to form a bottom cavity communicating with the channel of the blade profile; casting molten metal into the blade profile so as to fill the top and bottom cavities and the channel interconnecting them; and cooling the metal so that the shrinkage of the metal cooled in the top and bottom cavities leads to the ceramic of the blade profile being subjected to compression prestress.