Patent ID: 6109344
Filing Date: 2000-08-29
Classification: B21D,F28D,F28F,Y10T

Abstract:
A heat exchanger comprising:first and second elongated hollow metal bodies each made by hydroforming of an integral piece above 50 MPA pressure and each having ends, at least one end of each tank being open, the open end being closed by a separate end cap sealingly joined to the hollow bodies whereby the hollow bodies form first and second tanks;the first tank having a first jointless projection, said first jointless projection forming a fluid inlet; the second tank having a second jointless projection, said second jointless projection forming a fluid outlet;a side portion of each tank body having a plurality of cooling apertures therein; anda plurality of cooling tubes each having a first end projecting into a tube receiving aperture of the first tank and a second end projecting into a tube receiving aperture of the second tank, the cooling tubes being sealingly joined to the tank in a leak proof manner whereby a fluid can flow into the first tank through the inlet, flow from the first tank through the cooling tubes to the second tank and flow from the second tank through the outlet.