Patent ID: 7841384

Claim:
A casing ( 1 ) for housing, in a heating, ventilation and/or air-conditioning installation, particularly of a motor vehicle, a heat exchanger ( 3 ) comprising an air inlet face ( 12 ), an air outlet face ( 13 ), a rear end face ( 15 ), a front end face ( 14 ), and at least one side face ( 16 , 17 ) capped with a radiator tank ( 4 , 5 ), said casing ( 1 ) comprising walls delimiting a heating channel ( 2 ) in which is installed the heat exchanger ( 3 ), side walls ( 18 , 19 ) of said heating channel each defining a housing comprising first ( 21 , 22 ) and/or second ( 23 , 24 ) primary parts intended to be respectively placed opposite radiator tank side faces, substantially parallel to the inlet face ( 12 ) and/or outlet face ( 13 ) and in that each radiator tank ( 4 , 5 ) comprises on its side faces first ( 25 , 26 ) and/or second ( 27 , 28 ) secondary protruding parts, said heat exchanger ( 3 ) defining a sliding direction extending between said front end face ( 14 ) and said rear end face ( 15 ) along which said heat exchanger ( 3 ) slides during installation into said casing ( 1 ), said first and/or second primary parts and said corresponding first and/or second secondary parts being respectively shaped so as to define together a duct ( 29 , 30 ; 31 , 32 ) constraining an air flow to change direction at least three times, so that the circulation of said air flow is limited in the whole of said duct ( 29 , 30 ; 31 , 32 ), the housing being suitable for receiving at least one part of the radiator tank ( 4 , 5 ) with said first ( 21 , 22 ) and/or second ( 23 , 24 ) primary parts and said first ( 25 , 26 ) and/or second ( 27 , 28 ) secondary protruding parts being substantially aligned along said sliding direction between the rear end face ( 15 ) and the front end face ( 14 ) for mating during the sliding installation of said heat exchanger ( 3 ) in said casing ( 1 ), the housing being located entirely to the exterior of the heating channel ( 2 ).