Patent ID: 7670112

Claim:
A moving blade of a turbine comprising an intrados wall, an extrados wall, at least one first radial trailing edge cavity, at least one second radial cavity upstream of the trailing edge cavity, an internal wall separating the radial cavities and containing at least one channel connecting the cavities to one another, the channel being oriented in an axis intersecting the internal surface of the intrados wall in the first radial trailing edge cavity, wherein the upstream extremity of the channel is connected at its outlet in the radial cavity, on the one hand, to the internal surface of the extrados wall via a throat having an upstream extrados radius of curvature and, on the other hand, to the internal surface of the intrados wall via a rounded area and a throat having an upstream intrados of curvature, wherein said upstream extrados radius of curvature is larger than said upstream intrados radius of curvature, said throat being a vertex of an angle formed by the upstream extremity of the channel and the internal wall of the extrados wall and whereas the downstream extremity of the channel is connected at its outlet in the radial trailing edge cavity, on the one hand, to the internal surface of the intrados wall via a throat having a downstream intrados radius of curvature and, on the other hand, to the internal surface of the extrados wall via a rounded area and a throat having a downstream extrados radius of curvature, wherein said downstream intrados radius of curvature is larger than said downstream extrados radius of curvature.