Turbine wheel for drive turbine especially of metal working machinery

A turbine wheel for drive turbines comprising a disc-shaped wheel body (1) with a central bearing opening (2) and intake orifices (4) concentrically located on the circumference of a lateral disc surface (3) and of drive air channels (5) running inside the wheel body each ending in an outlet orifice (14) characterized by the fact that the outlet orifices (14) are located on the peripheral disc surface (7), where the drive air channels (5) each show an inflow section (6) of approximately an axial direction and an outflow section (8) running inside the disc body (1) in a direction to the peripheral disc surface (7), each intake orifice (4) being shaped like an ellipse whose small half-axis lies in a radial central plane (Y--Y) and whose large half-axis lies perpendicular to the radial central plane (Y--Y).