Patent ID: 8342921

Claim:
An aircraft air conditioning system, comprising: at least one fresh air supply line for conveying fresh air into an aircraft cabin, a plurality of dischargers for blowing the fresh air from the at least one fresh air supply line into the aircraft cabin, a cyclone unit positioned proximate to at least one of the dischargers, the at least one discharger defining a subset of the plurality of dischargers in the aircraft, the subset of dischargers being fluidically coupled to the at least one fresh air supply line by the cyclone unit, wherein the cyclone unit includes: a main body including an inlet opening which communicates with the fresh air supply line, an intake opening through which cabin air is sucked in from the aircraft cabin, and an outlet opening, wherein the relative positioning of the inlet opening, the intake opening, and the outlet opening on the main body is configured such that a first cyclone flow is produced in the main body by only the fresh air during operation of the aircraft air conditioning system, and a distributor element coupled to the main body and communicating with the outlet opening, wherein the distributor element is positioned such that a second cyclone flow is produced in the distributor element by a mixture of the fresh air and the cabin air, wherein the cabin air is sucked in through the intake opening from the aircraft cabin and expelled together with the fresh air through the outlet opening.