Patent ID: 7174953

Claim:
A stacking-type, multi-flow, heat exchanger comprising a heat exchanger core comprising a plurality of heat transfer tubes and a plurality of fins, which are stacked alternately, and a pair of tanks, each provided at an end of said plurality of heat transfer tubes, a first tank of said tanks comprising an inlet tank portion through which a heat exchange medium is introduced into said heat exchanger core, and an outlet tank portion, through which said heat exchange medium is discharged from said heat exchanger core, said heat exchanger comprising: a flange member connected to said first tank, said flange member comprising a flange body, an inlet pipe portion communicating with said inlet tank portion and an outlet pipe communicating with said outlet tank portion, at least one of said inlet pipe and said outlet pipe being formed separately from said flange body; and a first passage for introducing said heat exchange medium from said inlet pipe to said inlet tank portion and a second passage for discharging said heat exchange medium from said outlet tank portion to said outlet pipe, said first and second passages being arranged in a thickness direction of said heat exchanger in parallel to each other, wherein said first passage is substantially concentric with an inlet hole formed through an end plate of said plurality of heat transfer tubes and said second passage is substantially concentric with an outlet hole formed through said end plate.