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 5855-00-357-1158
NSN 5975-00-840-5844
NSN 4140-01-413-4803
NSN 5905-01-473-9313
NSN 4140-01-244-2985
NSN 5855-01-159-1654
NSN 5935-01-453-5856
NSN 6150-01-254-2764
NSN 5910-01-649-3398
NSN 5895-00-233-5901
NSN 5990-00-339-2084
NSN 5920-00-722-4894