TURBINE INTER-DISK CAVITY COOLING AIR COMPRESSOR

摘要

The inter-disk cavity between turbine rotor disks is used to pressurize cooling air. A plurality of ridges extends radially outwardly over the face of the rotor disks. When the rotor disks are rotated, the ridges cause the inter-disk cavity to compress air coolant flowing through the inter-disc cavity en route to the rotor blades. The ridges eliminate the need for an external compressor to pressurize the air coolant.