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. 20, 2007
Filed:
Aug. 03, 2004
Jacques Boury, Saint Ouen en Brie, FR;
Maurice Judet, Dammarie les Lys, FR;
Jacques Boury, Saint Ouen en Brie, FR;
Maurice Judet, Dammarie les Lys, FR;
Snecma Moteurs, Paris, FR;
Abstract
A hollow blade includes an internal cooling passage, an open cavity located at the tip of the blade and bounded by an end wall and a rim and cooling channels that connect the said internal cooling passage to the outer face of the pressure wall. The cooling channels are inclined to the pressure wall in such a way that they emerge on the outer face of the pressure wall near the top of the said rim. A reinforcement of material is present between the rim and the end wall of the cavity along at least one portion of the pressure wall , whereby the said rim is widened at its base adjacent to the said end wall in such a way that the cooling channels emerge near the top of the rim without reducing the mechanical strength of the tip of the blade.