Heat Exchanger For A Motor Vehicle

Abstract

A heat exchanger comprises: a plurality of tubes for the circulation of a coolant which are arranged as a core bundle of tubes having a width in a longitudinal direction, a depth in a transverse direction, and a height in a vertical direction; a first header and a second header into which the tubes of the core bundle open; and a first partition arranged respectively in the first and second headers. The first partition respectively divides the first header and the second header, at least partially, into a first compartment and a second compartment which are adjacent in the transverse direction. The heat exchanger further comprises at least one second partition dividing the first compartment and the second compartment of the first header into a first chamber, a fourth chamber, and at least one return compartment which is adjacent, in the longitudinal direction, to the first and fourth chambers.

1 . A heat exchanger comprising:
 a plurality of tubes arranged in a core bundle of tubes which has a width in a longitudinal direction, a depth in a transverse direction and a height in a vertical direction and which allows for a circulation of a coolant;   a first header and a second header into which the tubes of the core bundle of tubes open; and   a first partition arranged respectively in the first header and in the second header,   with the first partition respectively dividing the first header and the second header, at least partially, into a first compartment and a second compartment which are adjacent in the transverse direction;   
       wherein the heat exchanger comprises at least one second partition dividing the first compartment and the second compartment of the first header into a first chamber, a fourth chamber, and at least one return compartment which is adjacent, in the longitudinal direction, to the first chamber and to the fourth chamber. 
     
     
         2 . The heat exchanger as claimed in  claim 1 , wherein the plurality of tubes is arranged in a first row and in a second row, and wherein some of the tubes of the first row open into the first chamber of the first header and into the first compartment of the second header, some of the tubes of the second row open into the fourth chamber of the first header and into the second compartment of the second header, and some of the tubes of the first row and of the second row open into the return compartment of the first header. 
     
     
         3 . The heat exchanger as claimed in  claim 1 , further comprising a first pipe and a second pipe opening respectively into the first chamber and the fourth chamber of the first header. 
     
     
         4 . The heat exchanger has claimed in  claim 1 , wherein the first partition divides the return compartment into a second chamber and a third chamber. 
     
     
         5 . The heat exchanger as claimed in  claim 4 , wherein the first partition is a dividing partition separating the second chamber from the third chamber and is pierced with at least one through-passage. 
     
     
         6 . The heat exchanger as claimed in  claim 1 , further comprising at least one baseplate and at least one cover, which are assembled one with the other to form the first header and/or the second header. 
     
     
         7 . The heat exchanger as claimed in  claim 6 , wherein the first partition is formed by a projection of the cover and/or of the baseplate toward the baseplate and/or the cover and in contact with the baseplate and/or with the cover. 
     
     
         8 . The heat exchanger as claimed in  claim 6 , wherein the second partition comprises an additional partitioning element interposed between the baseplate and the cover. 
     
     
         9 . The heat exchanger as claimed in  claim 8 , wherein the additional partitioning element is configured to conform in terms of shape to the first header and/or the second header. 
     
     
         10 . The heat exchanger as claimed in  claim 6 , wherein the cover is formed of a pressed metal plate defining at least one first longitudinal cavity and one second longitudinal cavity. 
     
     
         11 . The heat exchanger as claimed in  claim 10 , wherein the first partition is formed of a non-pressed region of the metal plate. 
     
     
         12 . The heat exchanger as claimed in  claim 10 , wherein the second partition is formed of a non-pressed region of the metal plate. 
     
     
         13 . The heat exchanger as claimed in  claim 10 , wherein the pressed metal plate that forms the cover comprises at least one transverse cavity delimited by two second partitions forming the return compartment. 
     
     
         14 . The heat exchanger as claimed in  claim 2 , wherein the first partition divides the return compartment into a second chamber and a third chamber. 
     
     
         15 . The heat exchanger as claimed in  claim 14 , wherein the first partition is a dividing partition separating the second chamber from the third chamber and is pierced with at least one through-passage. 
     
     
         16 . The heat exchanger as claimed in  claim 3 , wherein the first partition divides the return compartment into a second chamber and a third chamber. 
     
     
         17 . The heat exchanger as claimed in  claim 16 , wherein the first partition is a dividing partition separating the second chamber from the third chamber and is pierced with at least one through-passage.