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OwnerMichael Mueller, Jorg Pross +1inventors
InventorsMichael Mueller, Jorg Pross, Manfred Knorr
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The rotor blades of a turbomachine are fastened to the rotor (3) of the machine by means of blade roots (1) by the blade roots (1) being anchored in peripheral grooves (2). According to the invention, the blade roots (1) have at least one recess or opening (4), which extends in the peripheral direction and in each of which a connecting piece (5) is arranged. This connecting piece (5) connects at least two blade roots (1) to form a blade pack. By means of the connection, the blade roots (1) are secured against twisting and falling out of the peripheral groove (2). The connecting piece (5) consists of a shaped piece, which is laid with little clearance into the recess or opening (4), a displacement of a blade root (1) and of the connecting piece (5) relative to one another still being possible. The blade root of the last blade of a blade row which is assembled in a peripheral groove is locked to the adjacent blade roots by a final connecting piece.
A fastening arrangement for rotor blades on the rotor (3) of a turbomachine, the rotor blades each having a blade root (1) which is anchored in a peripheral groove (2), characterized in that the blade roots (1) each have at least one recess (4) or opening, the recess or opening extending in the peripheral direction, and in that a connecting piece (5), which is matched to the shape of the recess (4) or opening, is arranged in each recess or opening, and in that the connecting piece connects at least two blade roots (1) to form a blade root pack.
Dependencies are inferred from the claim text.