Patent ID: 7048040

Claim:
A heat exchanger assembly comprising: a first exchanger comprising: a plurality of tubes each having a generally rectangular or oval cross section, and a pair of opposing longitudinal sides each having a first width and a pair of opposing narrow sides each having a second width; a first collecting tank attached to the plurality of tubes at a first end of each of the plurality of tubes, with the plurality of tubes positioned parallel to each other and forming a tube block; and heat exchange fins positioned between the plurality of tubes, wherein each of the plurality of tubes has a longitudinal dimension at the first tube end that smaller than the first width, and wherein the first collecting tank has a longitudinal dimension that is not larger than the first width, such that the first collecting tank does not extend longitudinally beyond the tube block; and a second heat exchanger connected to the first collection tank, said second heat exchanger comprising: a header tank at least partially integrally connected to the first collection tank.