METHOD AND APPARATUS FOR REDUCING AXIAL COMPRESSOR BLADE TIPFLOW

摘要

A turbine machine (T1) of the type having a high pressure compressor positioned in a casing is provided with a plurality of rotating compressor blades (10-14) wi th at least one air channel (10C-14C) formed in the blades (10-14) for air flow communicatio n from the base to the tip for extracting and pressurizing air from an inner area proximate the disk (20) and conveying the extracted and pressurized air into an area between th e blade tip and casing (C1) for blocking air flow across the tips of the blades (10-14).