Patent ID: 7857584

Claim:
A turbomachine stator section comprising: an inner shroud; an outer shroud; and a stator vane connected to the inner shroud and the outer shroud, the stator vane comprising a radially internal part of height h 4 , a radially external part of height h 1 , a pressure face side, a suction face side, a leading edge, and a trailing edge, wherein the radially external part includes an intermediate part of height h 3 and a connecting part of height h 2 which meet, the intermediate part is positioned between the connecting part and the radially internal part, wherein the radially internal part of the vane comprises a first zone connected to the radially external part by a transition zone, wherein the vane is connected to the outer shroud only by the connecting part, the intermediate part is positioned radially inside the outer shroud, and wherein the trailing edge has a radius of curvature which connects the pressure face to the suction face, the radius of curvature increases progressively in the transition zone of the vane, the radius of curvature reaches a maximum where the transition zone and the intermediate part meet and remains constant at the maximum in the intermediate part and the connecting part.