Heat Exchanger

Abstract

A heat exchanger includes: first plates; second plates disposed at intervals with each between a pair of the first plates adjacent to each to alternately form first flow paths and second flow paths; and a heat exchange promoting member in the first flow paths. At least one of the first plates and each second plate includes a plurality of protruding portions each of which is formed in a V shape in a plan view such that the protruding portion recesses in a corresponding one of the first flow paths and projects in a corresponding one of the second flow paths. Each protruding portion has a tip end portion and an opening portion arranged in a flow direction in the second flow path, and one of a pair of free end portions is positioned on a first inflow port side and the other is positioned on a first outflow port side.

1 . A heat exchanger configured to perform heat exchange between a first fluid and a second fluid flowing in a direction intersecting the first fluid, the heat exchanger comprising:
 a plurality of first plates provided in parallel at intervals;   second plates disposed at intervals with each between a pair of the first plates adjacent to each other, and alternately laminated with the first plates to alternately form first flow paths each allowing the first fluid to flow therethrough and second flow paths each allowing the second fluid to flow therethrough; and   a heat exchange promoting member provided in the first flow paths and in contact with the first plates and the second plates, wherein   at least one of each of the first plates and each of the second plates includes a plurality of protruding portions each of which is formed in a V shape in a plan view such that the protruding portion recesses in a corresponding one of the first flow paths and projects in a corresponding one of the second flow paths, and each of which is formed to be lower than a flow path height of a corresponding one of the second flow paths,   the plurality of protruding portions are arranged side by side in an orthogonal direction orthogonal to flow of the second fluid such that a tip end portion and an opening portion of the V shape are arranged in a flow direction of the second fluid in the second flow paths, and one of a pair of free end portions of the V shape is positioned on a first inflow port side on which the first fluid flows toward the first flow paths and the other is positioned on a first outflow port side on which the first fluid flows out from the first flow paths,   the protruding portion on one side of a straight line connecting a second inflow port allowing the second fluid to flow into the second flow paths and a second outflow port allowing the second fluid to flow out from the second flow paths is point-symmetrical to the protruding portion on the other side of the straight line with respect to centers of the first plates and the second plates, and   a pair of the protruding portions adjacent to each other are arranged such that the tip end portion and the opening portion of the V shape are alternately arranged in the orthogonal direction.   
     
     
         2 . The heat exchanger according to  claim 1 , wherein
 the heat exchange promoting member has a heat exchange wall surface erected between the first plate and the second plate, and   the heat exchange wall surface is disposed so as to intersect a flow direction of the first fluid from a first inflow port toward a first outflow port.   
     
     
         3 . (canceled) 
     
     
         4 . (canceled) 
     
     
         5 . (canceled) 
     
     
         6 . (canceled)