Aircraft air conditioning system mixer with corrugations

A mixer (16) for an air conditioning system for aircraft comprising: a first tube (40) having a channel (42) extending between an inlet (44) and an outlet (46); and a second tube (48) at least partially surrounding said first tube (40) a cavity (52), said first tube (40) having a circumferential corrugation in said first tube (40) forming at least one lobe ( 54) fluidly connecting said first tube (40) and said cavity (52); characterized in that a tube (56) providing the flight deck extends from said mixer (16) with a tube (58) therein extending from said first tube (40) and is fluidly connected therewith, said tube (58) disposed inside being at least partially inside said tube (56) providing the flight deck, forming another cavity (60) between said tube (58) inside and said tube (56) supply the cockpit, receiving said other cavity (60) air regulated from a computer (12).