| 摘要 |
In a laminated heat exchanger constituted by using tube elements each having a heat exchanging medium passage and tanks formed as an integrated unit, the wall surfaces between a plurality of shoal-like beads formed in heat exchanging medium passage of the tube element at the boundary between the heat exchanging medium passage and the tank and between the shoal-like beads and the side edges of the tube element are made to incline to gradually widen in the direction of the lamination as they approach the tanks. With this, the flow area at the boundary between the heat exchanging medium passage and the tank is increased compared to that in a tube element in the prior art, and moreover, since the angle at which heat exchanging medium flows from the tanks into heat exchanging medium passage is wider, the resistance that heat exchanging medium is subject to when it flows from the tanks into heat exchanging medium passage becomes reduced. This results in the heat exchanging medium flowing in sufficient quantity in all areas from the tanks into heat exchanging medium passages, thereby achieving a higher degree of consistency in the distribution of the heat exchanging medium.
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