Abstract: Heat exchanger (1) provided with a housing (2) having a core (3). The core (3) comprises a series of plate-shaped fins (10) placed at least almost parallel to each other, in which each fin (10) is provided with pipe openings (13), and bundle of pipes (8) for passing a first heat exchange medium. Each of the pipes (8) extends through respective pipe openings (13) of respective fins (10). The housing (2) is provided with an inlet (5) and an outlet (7) for passing a second heat exchange medium through the housing (2). At least one of the fins (10) is further provided with mix openings (20). Preferably at least one of the fins (10) is further provided with local elevations (23). Preferably between the core (3) and the housing (2) a strip (14), preferably of springy material, has been arranged for reducing leakage between the core (3) and the housing (2).

Abstract: Heat exchanger provided with a housing having an inner wall, an inlet and an outlet for passing a first heat exchange medium through the housing. The housing furthermore has a core comprising a series of plate-shaped fins placed at least almost parallel to each other. Each fin is provided with pipe openings. A bundle of pipes is present for passing a second heat exchange medium, as well as a number of baffle plates, each baffle plate being provided with pipe openings. Each of the pipes extend through respective pipe openings of respective fins and respective baffle plates. Filling blocks are further provided, each having a bent base portion which has an outer surface. The bend of the base portion is such that the filling block closely abuts the inner wall of the housing. The filling block further has a rib projecting from the base portion to the centre of the housing when placed in the housing, which rib has a central slot. In said slot a respective baffle plate is accommodated.