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 5935-00-725-2550
NSN 6105-00-068-0436
NSN 4140-01-166-0028
NSN 5996-00-153-0268
NSN 7035-01-322-8180
NSN 5990-00-905-6472
NSN 5950-00-061-9568
NSN 5855-01-516-9915
NSN 5925-01-177-3177
NSN 2925-00-183-4390
NSN 5905-00-083-0866
NSN 5855-01-634-0259