Patent ID: 6155340
Filing Date: 2000-12-05
Classification: F28D,F28F

Abstract:
A heat exchanger comprising;a plurality of flat tubes for heat exchange between a first fluid inside the tubes and a second fluid flowing outside the tubes, each of the tubes having a cross-section and a pair of ends;a pair of hollow headers connected to the ends of the tubes, each header comprising a row of at least two parallel tubular portions with circular cross-sections and common wall portions therebetween, each header having a first face corresponding to a width of the header in a direction across the row of tubular portions each header having holes through the first face thereof and into the common wall portions of the tubular portions, each hole having a cross-section, corresponding to the cross-section of a corresponding one of the tubes, the ends of the tubes being inserted into the holes so that a communication passage exists between the tubular portions of the header; andan inlet and an outlet associated with the headers for introducing and discharging the first fluid from the heat exchanger.