| 摘要 |
The present invention relates to an air conditioning system for the air conditioning of a space, in particular for the air conditioning of an aeroplane cabin, comprising a heat exchanger for the cooling of a compressed air flow (tapped air flow) originating from an engine or an auxiliary unit and comprising at least one expansion device per air cycle machine (ACM) for the expansion and cooling of compressed air, wherein the expansion devices are disposed after the heat exchanger and are in connection on the outlet side with a mixing chamber or the space to be air conditioned. A high cooling performance is also achieved on the failure of one of the expansion devices or of an air cycle machine in that the heat exchanger is split into two heat exchanger units at the compressed air side whose inlets are each charged with compressed air, with the heat exchanger units being connected such that a flow of the compressed air from the outlet of the one heat exchanger unit to the other heat exchanger unit is prevented and with the heat exchanger units being able to be connected on the outlet side via a bypass line to the space to be air conditioned or to the mixing chamber or to the outlet of the air conditioning system.
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