Heat transfer device of a stacked plate construction
AssigneeBehr GmbH & Co.
InventorsMartin Brenner, Conrad Pfender, Walter Wolf
Life of this patent
Estimating the term…
Abstract
Heat transfer device of a stacked plate construction has a stacked plate construction consisting of alternately stacked flow duct plate units with flow duct openings and connection duct openings as well as connection cover plate units with connection duct openings provided such that two separate fluid flow systems are formed. The equal-sided connection duct openings overlap only by means of an interior portion with the equal-sided ends of the flow duct openings, whereas, by means of an exterior portion, while forming a respective connection conduit, they extend in the area outside the flow duct openings. This implements a compact plate stack construction with an optimal connection geometry for very low pressure losses.
Claims7
Heat transfer device having a construction consisting of several plates which are stacked above one another and are provided with openings, comprising:
- flow duct plate units with one or several side-by-side flow duct openings having equal-sided ends, which extend between two plate side areas, as well as with connection duct openings, which are arranged separately of the flow duct openings, and
- connection cover plate units which have connection duct openings which are arranged at least in two plate side areas,
- wherein the flow duct plate units and the connection cover plate units are alternately stacked on one another such that no fluidic connection exists between the flow duct openings of adjacent flow duct plate units;
- and such that the equal-sided ends of the flow duct openings of a respective flow duct plate unit are in a fluidic connection with one another by way of an overlapping connection duct opening of an adjacent connection cover plate unit, and are also in a fluidic connection with the equal-sided ends of the flow duct openings of, in each case, every alternate one of the flow duct plate units by way of overlapping connection duct openings of adjoining flow duct plate units,
- and wherein one connection duct opening respectively is provided on each plate side area of the flow duct plate units as well as of the connection cover plate units, such that respective mutually overlapping connection duct openings having exterior portions and equal sides form a connection conduit situated outside an area of the flow duct openings, from which connection conduit, with an exception of the connection duct openings which are arranged adjacent to the equal-sided ends of the flow duct openings in the respective flow duct plate units, the connection duct openings extend with one interior portion overlapping into an area of the equal-sided ends of the flow duct openings.
A method of making a heat transfer device comprising:
- providing a plurality of flow duct plate units with at least one flow duct opening extending between the plate sides,
- providing connection cover plate units with connection duct openings in plate side areas,
- and alternately stacking the flow duct plate units and connection cover plate units with one another,
- wherein the connection duct openings are disposed outside an area of the flow duct openings,
- and wherein one connection duct opening respectively is provided on each plate side area of the flow duct plate units as well as of the connection cover plate units such that respective mutually overlapping connection duct openings having exterior portions and equal sides form a connection conduit situated outside an area of the flow duct openings, from which connection conduit, with an exception of the connection duct openings which are arranged adjacent to the equal-sided ends of the flow duct openings in the respective flow duct plate units, the connection duct openings extend with one interior portion overlapping into an area of the equal-sided ends of the flow duct openings.
Dependencies are inferred from the claim text.