Patent ID: 7726938

Claim:
A static blade for an axial flow turbine comprising: a) an aerofoil portion having a leading edge, a trailing edge, a pressure side, a suction side, and a chord line; b) radially inner and outer platform portions integral with the aerofoil portion; c) a corner fillet where the aerofoil portion meets each platform portion to form a smooth transition between the aerofoil portion and each platform portion; d) the platform portions in plan view comprising: i) a trailing edge formed to extend circumferentially of the turbine axis, ii) a straight side edge on each of the pressure side and the suction side of the aerofoil, iii) a curved leading edge that joins the side edges to each other and that in plan view has a shape that follows the edge of the corner fillet in the region of the leading edge of the aerofoil portion.