Patent ID: 6293011
Filing Date: 2001-09-25
Classification: B23K,F16L,F28D,F28F,Y10T

Abstract:
A heat exchanger to be connected to a pipe, said heat exchanger comprising:a plurality of tubes through which fluid flows, each of said tubes extending in a longitudinal direction;a tank disposed at one side end of said tubes in the longitudinal direction to extend in an extending direction perpendicular to the longitudinal direction and to communicate with said tubes;a connector for connecting said tank to said pipe; anda protruding portion protruding from an outer surface of said tank, for clamping said connector so that said connector is immovably fastened to said tank, wherein:said protruding portion has first and second clamping portions which are formed unitarily with said tank in parallel with each other to extend in the extending direction of said tank from one end to the other end of said tank;each of said first and second clamping portions has a length approximately equal to that of said tank in the extending direction;said first and second clamping portions protrude from the outer surface of said tank in parallel with each other to have the same protruding dimension and to form a recess portion therebetween; andsaid connector is disposed in said recess portion to be outside a passage defined by said tank.