Abstract: A plate heat exchanger comprises a plate package (2) of heat transfer plates (3) provided with ports (12), which is arranged between two frame plates (4, 5), at least one (4) of the frame plates being provided with connection pipes (7). The invention concerns a support arrangement to avoid bending of a portion that surrounds each of the ports (12) of an outer heat transfer plate (10) in the plate package (2). Each connection pipe (7) on its inside is provided with a lining (9), which is radially movable in the connection pipe (7) and permanently connected with the outer heat transfer plate (10) around its relevant port (12). The support arrangement is constituted by a ring (14) arranged around the lining (9). The ring (14) supports the outer heat transfer plate (10) and abuts against a support surface, which is fixed in relation to the frame plate (4).

Abstract: A heat exchanger contains one or more heat exchange plates having on a common facial surface thereof a first heating fluid facial subchannel set containing at least one heating fluid facial subchannel and a first cooling fluid facial subchannel set containing at least one cooling fluid facial subchannel; wherein the heating fluid facial subchannel set and the cooling fluid facial subchannel set are mutually aligned in a heat exchange relationship on the common facial surface of the heat exchange plate(s).

Abstract: A heat transfer device with a plate sandwich structure includes at least two flow-duct-covering plates and one flow duct plate unit arranged in between which is formed of one or more superimposed flow duct plates each provided with flow duct breakthroughs. By means of the flow duct breakthroughs in one flow duct plate or by suitably overlapping flow duct breakthroughs of several adjoining flow duct plates, one or more flow paths are formed which extend predominantly in parallel to the plate plane between an inflow point and an outflow point. Such structures, capable of passing through one or more fluids passing through, are produced rather inexpensively and can be used, for example, as a battery cooling element.

Abstract: In a plate heat exchanger for two fluids having different flow volumes, comprising several generally rectangular heat transfer plates provided with inlet and outlet openings through its corner portions. Each heat transfer plate has a central portion and two distribution portions (15a and 16a) located between the central portion and respective inlet and outlet openings. The sizes of the inlet and outlet openings for one fluid differ from the size of the inlet and outlet openings of the other fluid. In addition, the distribution portions of the heat transfer plates provide a larger flow resistance for one fluid than the other fluid.