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 6130-01-242-7981
NSN 5835-00-368-4182
NSN 5930-00-616-1861
NSN 5910-01-425-8194
NSN 6645-01-277-9337
NSN 6220-01-481-3827
NSN 5930-01-063-7497
NSN 2925-00-295-8109
NSN 5915-00-205-6791
NSN 5920-00-115-9738
NSN 6320-01-512-2031
NSN 6150-01-558-5209