Patent ID: 8915716

Claim:
A rotor for a turbomachine, the rotor comprising: at least one moving blade row including a plurality of moving blades disposed adjacent to one another in a circumferential direction with respect to an axis of rotation, each one of the plurality of moving blades including a blade leaf and a blade root having an outer face, the outer face of the blade root including a blade root curved end wall contour adjacent the blade leaf in the circumferential direction, the blade root curved end wall contour having a concave curvature in an axial sectional plane of the rotor; at least one rotor shaft including a reception slot for a respective one of the at least one moving blade row extending in the circumferential direction, each of the plurality of moving blades being inserted into the reception slot via a respective blade root; and a plurality of intermediate pieces each disposed in the reception slot between two adjacent ones of the plurality of moving blades, each of the plurality of intermediate pieces including an outer face having an intermediate piece curved end wall contour, the intermediate piece curved end wall contour having a concave curvature in an axial sectional plane of the rotor, wherein the outer faces of the blade roots and the intermediate pieces are adjacent to one another flush radially in the circumferential direction, wherein each of the plurality of moving blades are fastened radially to the rotor shaft solely via the intermediate pieces.