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 5996-01-234-7157
NSN 5965-01-602-8072
NSN 6645-01-119-1583
NSN 5985-01-462-7348
NSN 6135-00-284-1406
NSN 5895-01-348-4201
NSN 6145-01-253-9898
NSN 6320-01-600-5808
NSN 6135-01-048-0910
NSN 5895-01-159-4780
NSN 6610-00-194-0676
NSN 6150-00-242-6241