Heat exchanger

A motor vehicle comprising at least one heat exchanger having:

• a base tube;
• a flange extending at least partially around the base tube, wherein the flange is formed as a forged piece;
• and
• an adhesive between the flange and the base tube to provide a permanent bond between the flange and the base tube;
• wherein the flange is formed by a wall having a contact section and a V-shaped section, the contact section resting flatly against the base tube, and the contact section and the V-shaped section having a same thickness;
• wherein the V-shaped section has a thread;
• and
• wherein a wall thickness t of the flange is in the range of 2 mm≤t≤3.0 mm, and a ratio of an outer diameter of the flange to the wall thickness ranges between 37.3:1 and 56:1.

A heat exchanger for an internal combustion engine, comprising:

• a base tube having tubes in which a first fluid is flowable, and two connecting pieces via which a second fluid is led into an interspace delimited by the tubes and the base tube;
• and
• a flange extending at least partially around the base tube, the flange being formed from a wall bent to have at least one contact section with which the flange rests flatly on the base tube, and a V-shaped section defining a cavity between the wall and the base tube, the flange being formed as a forged piece and adhesively bonded to the base tube;
• wherein the at least one contact section and the V-shaped section have a same thickness;
• wherein the flange has a thread on a radially outermost section of the V-shaped section;
• and
• wherein a wall thickness t of the flange is in the range of 2 mm≤t≤3.0 mm, and a ratio of an outer diameter of the flange to the wall thickness ranges between 37.3:1 and 56:1.