A nonpositive displacement mechanical device designed to provide cool air in aircraft air conditioning systems. Cool air or reduction in temperature is obtained when the heat or energy of compressed air is removed by converting it to work or mechanical energy to drive an impeller wheel. Compressed air is directed through nozzle vanes and impinged upon the blades of a turbine wheel creating rotary motion which drives an impeller wheel. Consists of an impeller wheel, a turbine wheel matched with a nozzle ring on a bearing mounted shaft within a scroll type housing(s).
Classification: Other parts of airplanes or helicopters for use in military aircraft (excludes propellers, rotors, undercarriages, and parts thereof)
NSN 6620-01-327-7273
NSN 5996-01-528-5880
NSN 5990-01-386-3040
NSN 5835-01-099-1514
NSN 5950-00-527-6896
NSN 5996-01-604-0918
NSN 5975-00-916-5940
NSN 5905-00-366-7578
NSN 5950-01-440-9972
NSN 6220-01-320-4759
NSN 5920-01-047-2581
NSN 6240-00-233-3481