METHOD FOR ADAPTING AIRFLOW OF TURBINE ENGINE HAVING CENTRIFUGAL COMPRESSOR AND DIFFUSER FOR IMPLEMENTING THE SAME

摘要

PROBLEM TO BE SOLVED: To maintain efficiency and duty of a turbine engine compressor to significantly reduce fuel consumption while guaranteeing a high enough pumping margin with partial load.SOLUTION: Airflow F is diffused in a first annular blade ring G1 having a variable pitch blade 24 of a same number of fixed pitch blade radially bordered by a second annular blade ring G2 having a fixed pitch blade 28 with an equivalent extension portion, and radial extension diffusion is guided by coupling the blades 24, 28 of two blade rings, thus each blade 24 of the first blade ring G1 is spun off-axis.SELECTED DRAWING: Figure 3