Assembly for a fluid flow machine

Structural assembly for a fluid-flow machine provided with:

• a main flow path boundary confining a main flow path of a fluid-flow machine, where at least one row of blades each with one blade end is arranged in the main flow path, where a gap exists between the blade ends of the at least one row of blades and the main flow path boundary, and where there is a rotating relative movement between the blades of a blade row and the main flow path boundary, and
• at least one secondary flow duct, having one opening each provided in the main flow path boundary at ends spaced apart in the flow direction, such that the secondary flow duct is connected to the main flow path via the two openings,
• wherein
• the structural assembly has at least one support component and at least one insertion component, where in the support component a recess extending in the circumferential direction is provided that receives at least one insertion component such that the support component surrounds the at least one insertion component largely on its sides not facing the main flow path, and where the insertion component completely surrounds or forms at least one secondary flow duct.