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 6320-01-352-8084
NSN 6620-01-407-1158
NSN 5905-01-043-0524
NSN 5975-01-542-8788
NSN 6130-00-982-5592
NSN 6150-01-644-9230
NSN 2925-01-359-9818
NSN 6105-00-253-3828
NSN 5855-00-288-1408
NSN 5998-00-850-1401
NSN 5915-01-196-6016
NSN 5915-00-465-8168