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 5935-01-165-4335
NSN 6650-00-143-1889
NSN 5905-00-189-0621
NSN 5998-01-528-5682
NSN 5999-01-424-6273
NSN 6685-01-200-0962
NSN 6610-00-225-7680
NSN 6220-01-173-3177
NSN 6645-01-432-1068
NSN 5985-00-776-0850
NSN 6145-01-246-1080
NSN 5999-01-514-0878