Patent ID: 7794202

Claim:
A turbine blade adapted for installation in a turbine engine having a stationary stator cylinder and a rotatably supported rotor, comprising: a stator-side end located toward the stationary stator cylinder of the turbine engine; a rotor-side end located toward the rotatably supported rotor of the turbine engine; a leading edge located between the stator-side end and the rotor-side end; and a trailing edge located between the stator-side end and the rotor-side end and located down-stream of the leading edge with respect to a fluid flow direction, wherein both the rotor-side and the stator-side ends each respectively have a negative sweep angle as measured between the instantaneous tangent of a blade form curve and the fluid flow direction; and wherein rotor-side instantaneous tangents and stator-side instantaneous tangents intersect a longitudinal plane, the plane extending from an axis of rotation of the rotatably supported rotor and passing through a point disposed in a middle region of the leading edge, and wherein portions of rotor-side instantaneous tangents and stator-side instantaneous tangents radially outward from the points of intersection are on a same side of the longitudinal plane.