Patent ID: 9534529
Date: 2017-01-03
CPC Classifications: F01N,F02B,F02M,F28D,F28F

Claim:
1. A heat exchanger for the exhaust gas system of a motor vehicle comprising: a closed housing; a bundle of separately formed exhaust gas carrying exchanger tubes disposed in the housing, wherein a coolant flows through the housing and around an outer surface of the exchanger tubes, wherein each of the exchanger tubes is substantially U-shaped and includes a first straight portion, a second straight portion, and a bend region connecting the first straight portion to the second straight portion; a stiffening element abutting the bend region of each of a first plurality of the exchanger tubes to mechanically interconnect the first plurality of the exchanger tubes; and a baffle extending between the first straight portion and the second straight portion of each of the exchanger tubes, the baffle abutting at least one of the first straight portion and the second straight portion of each of a second plurality of the exchanger tubes to mechanically interconnect the second plurality of the exchanger tubes.