BLADE ASSEMBLY FOR A TURBOMACHINE ON THE BASIS OF A MODULAR STRUCTURE

摘要

A blade assembly of a power plant having a modular structure, wherein blade elements include at least one blade airfoil, and at least one footboard mounting part. Blade elements can each have at its one ending a configuration for an interchangeable connection among each other. The connection of the airfoil with respect to other elements can be based on a fixation in radially or quasi-radially extension relative gas turbine axis, wherein the assembling of the blade airfoil in connection with the footboard mounting part is based on a friction-locked bonding actuated by adherence interconnecting, or on use of a metallic and/or ceramic surface fixing blade elements to each other, or on closure configuration with a detachable, permanent or semi-permanent fixation.

主权项

1. A rotor blade assembly for a turbomachine having a modular structure, wherein the blade assembly comprises:
blade elements each having at least one blade airfoil, and at least one footboard mounting part, wherein the blade elements each have one ending means for interchangeable connection among each other, wherein the connection of the airfoil with respect to other elements is based on a fixation in radial or quasi-radial extension compared to an axis of the rotor of a turbomachine, wherein assembling of the blade airfoil in connection with the footboard mounting part is based on a friction-locked bonding actuated by adherence interconnecting, or the assembling of the blade airfoil in connection with the footboard mounting part is based on the use of a metallic and/or ceramic surface fixing blade elements to each other, or the assembling of the blade airfoil in connection with the footboard mounting part is based on closure means with a detachable, permanent or semi-permanent fixture, wherein the footboard mounting part includes at least two-folded elements, wherein the assembly of separated footboard mounting parts with respect to a foot-side elongated portion of the blade airfoil is conducted with a reciprocal axially guided coupling, wherein the footboard mounting parts have axially opposite cracks or clutches corresponding to an axially extending contour of the elongated portion of the shank under-structure, wherein the axially extending contour of an elongated portion of a shank under structure corresponds approximately to an axially inflow plane of an airfoil.