Patent ID: 7059395

Claim:
A heat exchanger for heat exchange between a first fluid and a second fluid, particularly an evaporator for an air-conditioning device for the passenger compartment of a motor vehicle, comprising a stack of pockets ( 1 ) mutually aligned in a longitudinal direction and having two header boxes ( 16 , 17 ) that are mutually juxtaposed in a lateral direction and are each formed by the alignment, in the longitudinal direction, of inlet or outlet chambers belonging respectively to the different pockets, the header boxes as a whole being divided into at least three connecting channels, in which exchanger the first fluid is injected into an upstream connecting channel ( 12 ) by a longitudinal nozzle ( 22 ) passing through a heat exchanger end face ( 5 ) remote from the upstream connecting channel, and at least one other connecting channel ( 14 ) formed by other pockets, in which exchanger said longitudinal nozzle ( 22 ) has a cross section of oblong general shape, whose greatest dimension is parallel to the greatest dimension of the pockets ( 1 ).