HEAT EXCHANGER TO COOL TURBINE AIR COOLING FLOW

摘要

A cooling system of a gas turbine engine includes a heat exchanger having a common wall shared by a first air passage for directing a portion of a compressor air flow to be used as cooling air, and a second air passage for directing a portion of a bypass air flow, the portion of the compressor air flow being thereby cooled by the portion of the bypass air flow through the common wall