Rotor for a hydraulic machine especially a Francis turbine has many rotor blades with curved leading and trailing edges connected to rim and base of turbine

摘要

A rotor (1) for a Francis turbine comprises rotor blades (2) having curved leading and trailing edges and a rim and a base. In the turning direction the connection of the leading edge to the rim (A) matches the connection (C) of the edge to the base.