Sainmhíniú an air cycle refrigerator consisting of a turbine and/or a compressor,and/or fan,mounted in separate ducts,but on a common drive shaft.The turbine cools the air supplied to it by extracting energy which is absorbed by the fan and/or compressor Tagairt Multilingual Aeronautical Dictionary(AGARD,1980)
Sainmhíniú a cold air unit in which the compressor or fan acts as a brake on the turbine.The compressor or fan is supplied with air from the atmosphere and the discharged air is normally used to induce a cooling flow,through a cooler or heat exchanger,enabling the aircraft cabin to be cooled whilst on the ground Tagairt Multilingual Aeronautical Dictionary(AGARD,1980)
Sainmhíniú a cold air unit in which the charge air passes through both the compressor and,via an intercooler,the turbine Tagairt Multilingual Aeronautical Dictionary(AGARD,1980)