An aircraft air conditioning system and method

Details An aircraft air conditioning system and method An aircraft air conditioning system and method

B - Operations, Transporting

64

D

B64D 13/08 (2006.01) B64D 13/06 (2006.01)

Patent

CA 2350978

An air conditioning system and method are provided for use in an aircraft having a pressurized area and an unpressurized area. The air conditioning system includes an air conditioning pack located in the unpressurized area of the aircraft that conditions fresh air. The air conditioning system also includes a first air duct for directing a flow of recirculation air from the pressurized area, through a pressure bulkhead, and into the unpressurized area. A mixer is also provided and advantageously positioned in the unpressurized area for mixing the conditioned air from the air conditioning pack and the recirculation air from the pressurized area. Advantageously, the mixer obviates the need for a mix manifold and saves valuable space for passengers, cargo, and other aircraft equipment. The air conditioning system also includes a second air duct that directs the mixture of conditioned air and recirculation air from the mixer to the pressurized area of the aircraft. The air conditioning unit also includes an aerodynamic shutoff valve in line with the first air duct at the pressure bulkhead and adapted for protecting against depressurization of the pressurized area as a result of the depressurization of the first air duct.

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