Patent ID: 6478079
Filing Date: 2002-11-12
Classification: F28F

Abstract:
A heat exchanger for performing heat-exchange between first fluid and second fluid, said heat exchanger comprising:a plurality of plate fins laminated from each other in a laminating direction to have a predetermined clearance between adjacent plate fins, the first fluid passing through said clearance; and a plurality of tubes in which the second fluid flows, said tubes penetrating through said plate fins in the laminating direction, wherein: each of said plate fins has a recess portion for setting an attachment position when said plate fins are assembled, said recess portion being provided at an end side of each plate fin in a longitudinal direction of said plate fins; each of said plate fins has a first edge at an upstream side and a second edge at a downstream side in a flow direction of the first fluid perpendicular to the longitudinal direction of said plate fins; said recess portion has a standing wall protruding in the laminating direction, on an outer periphery of said recess portion; said standing wall being located interior to one of said first and second edges; said recess portion has a recess extending from at least one end of said first end and said second end to an inner side of each plate fin; said recess is provided at a predetermined position in each plate fin, the predetermined position is the same on each of said plate fins in such a manner that said recesses in said plate fins are overlapped and are aligned in the laminating direction; and said recess and said standing wall are offset from all of said plurality of tubes in a direction perpendicular to the flow direction of said first fluid through said heat exchanger.