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 6320-00-731-6134
NSN 5960-01-632-6576
NSN 2925-00-149-0760
NSN 6150-00-315-1195
NSN 5920-01-416-6211
NSN 5855-01-561-5568
NSN 5998-00-900-5882
NSN 5925-01-328-7382
NSN 6145-00-060-2818
NSN 6620-01-142-0084
NSN 6150-00-189-0292
NSN 6145-01-449-9431