Heat exchanger and method for the production thereof
AssigneeBehr GmbH & Co.
InventorsPeter Geskes, Jens Richter
Life of this patent
Estimating the term…
Abstract
A heat exchanger which is especially used as an oil cooler in the motor vehicle industry includes interconnected plates. Outwardly closed cavities are embodied between the plates and are alternately supplied with a first or second medium by at least one supply line and one discharge line, and a corresponding medium flows through them. The plates are profiled in such a way that contact points are created between the respective profiles of the plate, and the plates are interconnected in the region of the contact points. The plates are designed such that the current from the first or second medium forming between the plates, from the corresponding supply line to the corresponding discharge line, does not follow a linear path.
Claims27
A heat exchanger for motor vehicles, the heat exchanger being formed from interconnected plates, there being formed between the plates cavities which are closed off outwardly and through which a first and a second medium flow alternately in each case via at least one inflow line and outflow line, the plates being profiled in such a way that, between the respective profiles of the plates, contact points occur, in the region of which the plates are fastened to one another, wherein the profiles of the plates and their contact points are designed in such a way that the flow, formed between the plates, of the first and the second medium from the corresponding inflow line to the corresponding outflow line does not run rectilinearly,
- wherein the plates have a recurring wavy profile which extends essentially transversely with respect to the main throughflow direction (H),
- wherein the plates have a bent edge, the edges of adjacent plates bearing one against the other and being connected to one another by brazing;
- and
- wherein between the end of the wavy profile and the edge, a profile-free bending portion is formed, the width of which is smaller than 2 mm and is determined in such a way that, during the brazing of the plates, a throughflow of medium in the bending portion is reduced or essentially prevented.
Dependencies are inferred from the claim text.