Patent ID: 7552590

Claim:
A tube-type vortex reducer for the conduction of cooling air in a compressor of a gas turbine, including radial secondary air tubes arranged in a disk interspace and attached to a compressor disk at their radially outward end sections, radially inward sections of the secondary air tubes being located fittingly and radially outward in recesses of locating pads of the compressor disk, the radially outward sections of the secondary air tubes being carried radially shiftable in recesses of locating arms of the compressor disk and secured against radially inward movement by locking elements; wherein each secondary air tube includes an annular retaining shoulder positioned between the locating pad and the locating arm proximal to a radially inwardly facing surface of the locating arm to limit radially outwardly movement of the secondary air tube and the respective locking element engages a radially inwardly facing annular surface of the annular retaining shoulder to secure the air tube against radially inward movement.