Rotor for fluid flow machine e.g. pump, has wing profile unit including convex elevation on outer mantel surface, axial hollow space enclosed in interior, and opening between space and mantel surface in region of profile units

摘要

The rotor has a wing profile unit (3) including a convex elevation (19) on an outer mantel surface (4) and rotating in a gaseous or fluid medium. An axial hollow space (6) is enclosed in the interior of the rotor, and the rotor is connected with a chamber to supply or discharge the medium. An opening (5) is provided between the space and the mantel surface in the region of the profile units. A shaft is connected with an impeller, and the impeller and the shaft can be rotatably supported in a stator. An independent claim is also included for a fluid flow machine with a rotor.