Patent ID: 8920121

Claim:
An axial turbomachine rotor, comprising: a rotor body, which is rotationally symmetrically formed around a rotor axis; a rotor blade ring, which includes a plurality of rotor blades which are fastened in each case by a blade root on the rotor body; and a sealing plate, which is rotationally symmetrically formed around the rotor axis and which by an outer edge of the sealing plate, is arranged radially inside and adjacently on an axially extending projection of the blade root so that between the blade root and the sealing plate a cavity is formed, wherein provision is made on the outer edge for a radially outwardly opening groove in which is supported a sealing ring which during operation of the rotor may slide radially outwards in the radially outwardly opening groove by action of centrifugal force until the sealing ring bears radially against the inner side of the projection and as a result seals the cavity at the blade root, wherein the sealing plate is formed from a plurality of sealing plate segments and the sealing ring is formed from a plurality of sealing ring segments which are arranged in series in a circumferential direction and are radially supported in each case directly on the rotor body, and wherein the respective sealing ring segments are inserted into the radially outwardly opening grooves on the outer edge of the sealing plate segment which is associated with them, wherein the plurality of sealing ring segments each include two long ends, facing away from each other, which are formed in each case by a bend which engages with a cutout provided in the radially outwardly opening groove so that the plurality of sealing ring segments are fastened in a form-fitting manner on the outer edge in the circumferential direction.