A SYSTEM FOR MIXING GAS FLOWS IN A GAS TURBINE ENGINE, GAS TURBINE ENGINE AND AN AIRCRAFT ENGINE

摘要

The invention relates to a system for mixing gas flows in a gas turbine engine. The system comprises an annular wall structure (23), which internally delimits a channel for a first gas flow, characterized in that the wall structure (23) comprises a plurality of first wall portions, that at least one of the first wall portions is movably arranged in a radial direction between a first position and a second position for mixing an external gas flow with the first gas flow.