Main Heat Exchanger 空气热交换器维修手册-
CMM 21-52-12 ,
Main Heat Exchanger
The main heat exchanger is an air to air heat exchanger used in the aircraft air conditioning
system. The main heat exchanger has a core assembly with two pan assemblies welded to
the top and bottom and flanges welded on each side. The core assembly has bleed air fins
and cooling air fins that are separated by plates to form hot and cold air passages that run
perpendicular to each other through the main heat exchanger.