Patent ID: 7520319
Filing Date: 2009-04-21
Classification: F28D,F28F,Y10T

Abstract:
1. A stacking-type, multi-flow, heat exchanger comprising a heat exchanger core comprising a plurality of heat transfer tubes each formed by connecting a pair of tube plates to each other and a plurality of fins, which are stacked alternately, and a tank portion formed at least at an end of said plurality of heat transfer tubes, and an end plate connected to an outermost tube plate of said heat exchanger core, said heat exchanger comprising: a projecting portion provided on a surface of said outermost tube plate at least at an end portion of said outermost tube plate for forming a part of said tank; a raised portion with an opening formed though said projecting portion; and an engaging portion and a closing portion provided integrally to said end plate for engaging said raised portion and for closing said opening of said raised portion, wherein said engaging portion comprises a hole provided through said end plate for engaging said raised portion.