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:
Sep. 01, 2009
Filed:
Jun. 07, 2007
Dax AU, Ivry sur Seine, FR;
Pascal Moise Michel Bigot, Moisenay, FR;
Pierre Briend, Tours, FR;
Pierre Philippe Marie Loheac, Brie Comte-Robert, FR;
Dax Au, Ivry sur Seine, FR;
Pascal Moise Michel Bigot, Moisenay, FR;
Pierre Briend, Tours, FR;
Pierre Philippe Marie Loheac, Brie Comte-Robert, FR;
SNECMA, Paris, FR;
Abstract
The invention relates to an annular cover for a turbomachine nozzle, the cover having a plurality of patterns extending a trailing edge of said cover and spaced apart circumferentially from one another, each pattern having an outline that is substantially triangular in shape, with a base formed by a portion of the trailing edge of the cover and a vertex spaced downstream from the base and connected thereto by two sides. For each pattern, the vertex presents an outline that is substantially curved; each side is connected to the trailing edge of the cover following an outline that is substantially curved having a radius of curvature that is greater than the radius of curvature of the outline of the vertex; and the outline of each of the sides includes at least one point of inflexion having a tangent that is substantially parallel to the base.