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AssigneeApparatebau Rothemuhle Brandt & Kritler Gesellschaft mit beschrankter Haftung
InventorsSimon Kaastra, Gerd Koster
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A sheet metal heating package for heat exchangers including a plurality of superimposed sheets having at least a partial profiling for instance embossments leaving free flow channels in between themselves, which sheets carry a coating serving as a surface protection, for instance a layer enamel, the sheet metal heating package having a profiling of the sheets, where at least the border edges of the respectively adjoining directly superposed sheets have a minimum spacing from each other at all points or are aligned so as not to contact each other, the border zones of the sheets and possibly the process technology-wise caused material accumulations arising at the border edges of the coating are in this way protected against chipping or spalling.
A sheet metal heating package 1 for regenerative heat exchangers, comprising a plurality of superimposed metal sheets 2 and 2a or 2 and 2b, respectively, comprising a profiling 3 or a profile shape B having embossments as well as flow channels 4 between said sheets, every sheet of which is provided with a coating 5 serving as surface protection, characterized in that the profiling of the metal sheets 2 or 2a, 2b across a border strip comprises a profile height that is less than the height of the profiling 3 adjacent to the border edges 6 and along all border edges 6 of adjacent superimposed sheets 2 and 2a or 2 and 2b in the region of profiling 3 there is a minimum distance 8 between adjacent sheets.
Dependencies are inferred from the claim text.