Abstract: An aircraft air conditioning system includes a cyclone unit positioned proximate to at least one discharger, the unit having an inlet opening, which communicates with a fresh air supply line, an intake opening, through which air is sucked in from the aircraft cabin, and at least one outlet opening, which communicates with the at least one discharger. A first, cyclone flow of only fresh air is produced in the cyclone unit during operation of the aircraft air conditioning system, the first cyclone flow tending to draw cabin air into the cyclone unit via the intake opening for mixture with the fresh air, after which a second cyclone flow of the cabin air and fresh air are expelled through the outlet opening and the at least one discharger.

Abstract: The invention relates to an aircraft air conditioning system with at least one fresh air supply line (14) for conveying fresh air into an aircraft cabin, wherein the fresh air is blown out into the aircraft cabin via at least one discharger (48). In order to form the system so as to save weight and costs, a cyclone unit (10) is disposed in the vicinity of the discharger (48), the unit having an inlet opening (12), which communicates with the fresh air supply line (14), an intake opening (28), through which air is sucked in from the aircraft cabin, and at least one outlet opening (24), which communicates with the at least one discharger (48), wherein a cyclone flow is produced in the cyclone unit (10) during operation of the aircraft air conditioning system by means of the fresh air serving as incoming air and further wherein air is sucked in through the intake opening (28) from the aircraft cabin and expelled together with the fresh air through the outlet opening (24).