Patent ID: 8708786

Claim:
An aircraft air-conditioning system, comprising: an air-conditioning unit that is connected by a main fresh-air line to a mixer in order to supply the mixer with fresh air at a desired low temperature, the mixer supplying a mixture of the fresh air flowing through the main fresh-air line and recirculation air extracted from a passenger cabin to a first zone of the aircraft, and a fresh-air branch line that is connected upstream of the mixer to the main fresh-air line, wherein the fresh-air branch line has a flow cross section that is smaller than a flow cross section of the main fresh-air line, wherein the main fresh-air line and the fresh-air branch line proximate the connection of the main fresh-air line to the fresh-air branch line are so formed that a main fresh air flow flowing through the main fresh-air line to the mixer is deflected, while a fresh air branch flow flowing through the main fresh-air line and the fresh-air branch line experiences substantially no deflection.