Patent ID: 7140841
Filing Date: 2006-11-28
Classification: F01D,F05D

Abstract:
1. A connecting arrangement for rotor blades of a turbomachine, the connecting arrangement comprising: a rotor blade; at least one pressure body; projections extending in a circumferential direction rigidly connected in pairs to the rotor blade, the projections being configured and arranged so that at least during operation of the turbomachine the projections are each supported by said at least one pressure body on a projection circumferentially adjacent to each projection; wherein each projection includes an acceptance feature; wherein each pressure body has a securing face with a securing contour which securing face faces toward an associated projection, which securing contour protrudes into the acceptance feature on an associated projection and the securing contour is circumferentially and transversely supported in the acceptance feature; wherein each pressure body includes a support face including a plane support surface, which plane support surface faces toward an adjacent projection, said adjacent projection including a plane mating surface, which plane support surface has, at least during operation of the turbomachine, area support on said plane mating surface of said adjacent projection; wherein at least one pressure body includes a securing contour comprising a spherical segment, said at least one pressure body associated with each pair of mutually supporting projections; and wherein an acceptance feature associated with said spherical segment comprises a spherical segment a radius of which is at least approximately of the same magnitude as a radius of the spherical segment of the securing contours; wherein each said adjacent projection includes an end face, and wherein said plane mating surface is positioned directly on said end face of said adjacent projection.