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 5990-00-498-5934
NSN 5930-00-512-9839
NSN 5905-01-075-7958
NSN 6105-00-884-6792
NSN 6645-00-920-8690
NSN 6110-01-410-7637
NSN 4140-00-557-7001
NSN 5960-00-310-3844
NSN 6150-01-585-9801
NSN 5996-01-457-9158
NSN 4140-00-836-6319
NSN 6110-01-045-4087