Patent ID: 7874349

Claim:
A heat exchanger comprising: a first tank having an inlet and a plurality of tube openings formed therein, the inlet adapted to be in fluid communication with a source of coolant, wherein the first tank further comprises: a first sidewall including a plurality of protuberances extending outwardly from an inner surface thereof; a second sidewall spaced apart from the first sidewall, the second sidewall including a plurality of protuberances extending outwardly from an inner surface thereof; a center wall formed between the sidewalls; a cover disposed adjacent the first sidewall and the second sidewall, the cover having a first end and a spaced apart second end; a first baffle received between the protuberances of the first sidewall and the second sidewall, wherein the first baffle sealingly engages the first sidewall, the second sidewall, the center wall, and the first end of the cover to form a fluid tight seal therebetween and provide a closure to the first tank; and a second baffle received between the protuberances of the first sidewall and the second sidewall, wherein the second baffle sealingly engages the first sidewall, the second sidewall, the center wall, and the second end of the cover to form a fluid tight seal therebetween and provide a closure to the first tank; a second tank having a plurality of tube openings and an outlet formed therein, the outlet adapted to be in fluid communication with the source of coolant, wherein the second tank further comprises: a first sidewall including a plurality of protuberances extending outwardly from an inner surface thereof; a second sidewall spaced apart from the first sidewall, the second sidewall including a plurality of protuberances extending outwardly from an inner surface thereof; a center wall formed between the sidewalls; a cover disposed adjacent the first sidewall and the second sidewall, the cover having a first end and a spaced apart second end; a first baffle received between the protuberances of the first sidewall and the second sidewall, wherein the first baffle sealingly engages the first sidewall, the second sidewall, the center wall, and the first end of the cover to form a fluid tight seal therebetween and provide a closure to the second tank; and a second baffle received between the protuberances of the first sidewall and the second sidewall, wherein the second baffle sealingly engages the first sidewall, the second sidewall, the center wall, and the second end of the cover to form a fluid tight seal therebetween and provide a closure to the second tank; and a plurality of tubes having a first end and a second end, wherein the first end of each of the tubes is in fluid communication with one of the tube openings of the first tank and the second end of each of the tubes is in fluid communication with one of the tube openings of the second tank.