Patent ID: 6926074

Claim:
An exhaust gas cooler, comprising: a housing ( 2 ) through which exhaust gas flows in a longitudinal direction, a first chamber ( 4 ) and a second chamber ( 5 ) that extend in the housing, a partition ( 3 ) that extends in the housing in the longitudinal direction and separates the first chamber ( 4 ) from the second chamber ( 5 ), a section of the housing and the partition form a boundary of the first chamber and another section of the housing and the partition form a boundary of the second chamber an inlet ( 7 ) that communicates in the housing ( 2 ) with the first chamber ( 4 ) and through which the exhaust gas flows into the housing ( 2 ), and an outlet ( 8 ) that communicates in the housing ( 2 ) at least with the second chamber ( 5 ) and via which the exhaust gas flows out of the housing ( 2 ), wherein the partition ( 3 ) comprises at least one overflow opening ( 6 ) through which the first chamber ( 4 ) communicates with the second chamber ( 5 ) and a plurality of channels 16 , 17 , 18 ) running in the longitudinal direction in the housing ( 2 ), the partition ( 3 ) separating, in each of the plurality of channels ( 16 , 17 , 18 ), a first partial channel ( 19 , 20 , 21 ) from a second partial channel ( 22 , 23 , 24 ), and the partition comprising at least one said overflow opening ( 6 ) through which the partial channels of a respective channel communicate with on another, the first partial channels comprising the first chamber ( 4 ) and the second partial channels comprising the second chamber ( 5 ), wherein housing ( 2 ) comprises an upper shell ( 14 ), a lower shell ( 15 ), and an inner shell, forming the partition ( 3 ), wherein the inner shell comprises separating sections ( 25 ) running in the longitudinal direction and a plurality of connecting sections ( 26 ) running in the longitudinal direction, a respective separating section ( 25 ) is arranged between two connecting sections ( 26 ) that are adjacent in a transverse direction, the upper shell ( 14 ) and the lower shell ( 15 ) abut or connect in the connecting sections ( 26 ), and the separating sections ( 25 ) respectively separate the first partial channel ( 19 , 20 , 21 ) from the second partial channel ( 22 , 23 , 24 ) in one of the channels ( 16 , 17 , 18 ), and comprise at least one overflow opening ( 6 ).