| 摘要 |
A device ( 10 ) for supplying preconditioned air to an aircraft on the ground, comprises a compressed air inlet ( 16 ) and a compressed air hose ( 34 ) having a first end connected to the compressed air inlet ( 16 ) and an opposite second end for connection to a remote, ground-based, compressed air unit. Expander means ( 14 ) are situated downstream of the compressed air inlet ( 16 ) for allowing the compressed air to expand to lower pressure and temperature. The device ( 10 ) further includes an ambient air inlet ( 24 ) and a mixing chamber ( 22 ) downstream of the expander means ( 14 ) and communicating with the ambient air inlet ( 24 ), wherein mixing of ambient air with the expanded, cold air is controlled in such a way as to elaborate preconditioned air at the desired temperature. A connection hose ( 28 ) has a first end in communication with said mixing chamber and a second end to be connected to an aircraft on the ground.
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