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 5910-00-462-8697
NSN 4140-00-222-2186
NSN 6130-01-602-9880
NSN 6610-01-069-1156
NSN 5999-00-063-9516
NSN 6685-00-103-9589
NSN 6610-00-285-5366
NSN 5999-01-164-3609
NSN 6240-00-635-9798
NSN 6145-01-538-5445
NSN 6620-00-546-6071
NSN 5998-01-617-6769