Patent ID: 7059393
Filing Date: 2006-06-13
Classification: F28D,F28F

Abstract:
1. A heat exchanger comprising: a first end tank; a second end tank opposite the first end tank; a plurality of first tubes in fluid communication with the first and second end tanks, the plurality of first tubes adapted to have a first fluid flow therethrough; a plurality of second tubes in fluid communication with the first end tank, second end tank or both, the plurality of second tubes adapted to have a second fluid, different from the first fluid, flow therethrough; and a plurality of fins disposed between the first and second tubes, with the first and second tubes and the fins being generally co-planar relative to each other; wherein at least one of the first tubes or the second tubes includes an internal fin having a height that is between about 0.05 to about 0.25 times a hydraulic diameter of at least one of the plurality of first tubes, at least one of the plurality of second tubes or both.