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:
Aug. 10, 2021
Filed:
Jul. 24, 2019
Safran Aircraft Engines, Paris, FR;
Jacques Marcel Arthur Bunel, Moissy-Cramayel, FR;
William Louis Rodolphe Dousse, Moissy-Cramayel, FR;
Dan Ranjiv Joory, Moissy-Cramayel, FR;
Benjamin Frantz Karl Villenave, Moissy-Cramayel, FR;
Sanfran Aircraft Engines, Paris, FR;
Abstract
A method for producing an annular combustion chamber of a turbojet using CMC. For this, a shaping tool with movable slides is used and said chamber is produced around the tool, thereby producing a fibrous preform of which the shape is consolidated by drape moulding on the tool and pyrolysis, which is then densified by CVI. Several slides have back drafts, at least one other of such slides having a draft or neither a draft nor a back draft. Then, the slides are removed in a predetermined order imposed by the back drafts and the relative positions of the slides.