Patent ID: 7854123

Claim:
An annular cover for a turbomachine nozzle, the cover having a plurality of patterns extending the trailing edge of said cover and spaced apart circumferentially from one another, each pattern having an outline of substantially triangular shape with a base formed by a portion of the trailing edge of the cover and with two vertices spaced downstream from the base and each connected thereto by a side, wherein for each pattern: each vertex presents a substantially curved outline and the patterns are interconnected by a substantially curved portion having a radius of curvature greater than the radii of curvature of the outlines of said vertices; each side is connected to the trailing edge of the cover via an outline that is substantially curved having a radius of curvature greater than the radii of curvature of the outlines of the vertices and greater than the radius of the outline of the curved portion interconnecting said vertices; and the vertices and the curved portion interconnecting them are inclined radially towards the inside of the cover relative to the trailing edge thereof with the curved portion interconnecting said vertices being offset radially outwards relative to the vertices.