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 5990-01-258-3848
NSN 6135-01-390-7364
NSN 5905-01-261-5245
NSN 5960-01-505-2426
NSN 5895-00-707-6663
NSN 5950-01-569-1410
NSN 5905-01-146-4352
NSN 6145-01-063-6486
NSN 6110-01-511-9917
NSN 5945-01-485-8836
NSN 5999-01-381-3186
NSN 6240-01-271-2222