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 6110-01-447-2770
NSN 6685-01-533-9715
NSN 5895-01-359-2040
NSN 6150-01-539-0532
NSN 6240-01-555-8365
NSN 6105-00-526-8144
NSN 7035-00-941-4949
NSN 5905-01-643-1186
NSN 4140-00-078-9357
NSN 6105-00-760-4626
NSN 5925-01-577-2416
NSN 5920-00-054-7048