Patent ID: 6491092
Filing Date: 2002-12-10
Classification: F28D,F28F,Y10S

Abstract:
A heat exchanger in which a plate-shaped cooling medium flow portion, which provides an internal cooling medium flow path by laminating two flat plates formed by drawing, and a cooling fin are alternately laminated, said heat exchanger comprising:a cooling medium inlet for allowing a cooling medium to flow into said cooling medium flow path and a cooling medium outlet for allowing said cooling medium passing through said cooling medium flow path to flow out are formed in said two flat plates; a continuous space on the inlet side is formed by butting said cooling medium inlets of adjacent said cooling medium flow portions and a continuous space on the outlet side is formed by butting said cooling medium outlets of adjacent said cooling medium flow portions; and said cooling medium allowed to flow into said cooling medium inlet through said space on the inlet side and distributed to each of said cooling medium flow portions is passed through said cooling medium flow path and is allowed to flow out of said cooling medium outlet thereby to be discharged through said space on the outlet side, wherein relatively more of said cooling medium is distributed to said cooling medium flow portions at the upstream side than at the downstream side, and wherein a baffle plate having an opening portion for allowing said cooling medium to pass and guiding said cooling medium, which cannot pass through said opening portion, to said cooling medium flow path is provided for each of said cooling medium inlets for each of said cooling medium flow portions and an opening of a baffle positioned further downstream in the flow direction of said cooling medium is formed with a smaller size.