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AssigneeAKA Patenten B.V.
InventorsBert Johan Nelemans, Jochem Franciscus Edith Lahaije
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A device, which is suitable for the processing of at least one fluid, is provided with at least one elongated foil, which is formed in a number of reciprocating foil layers. Between two opposite layers of foil, a spacer is situated that is permeable at least parallel to the foil layers. The foil layers and interposed spacers extend spirally around a central axis, wherein folding lines between two foil layers extend substantially parallel to the central axis. Each spacer is coupled to at least an end near the central axis with a support extending parallel to the central axis where, of the supports near the central axis, first supports are situated between two foil layers, which foil layers are connected to one another near the central axis, whereas second supports are situated between two successive first supports.
Device suitable for processing at least one fluid, which device is provided with at least one elongated foil that is formed in a number of reciprocating foil layers, wherein between two opposite foil layers a spacer is situated which is permeable at least parallel to the foil layers, said foil layers and interposed spacers extending spirally around a central axis, wherein folding lines between two foil layers extend substantially parallel to the central axis, characterized in that each spacer is coupled at least at an end near the central axis with a support extending parallel to the central axis where, of the supports near the central axis, first supports are situated between two foil layers, which foil layers are connected to one another near the central axis, whereas second supports are situated between two successive first supports.
Device according to anyone of the preceding claims, characterized in that the axial ends of the spirally wound foil layers are sealed by means of a seal.
Device according to anyone of the preceding claims, characterized in that a sealing foil portion of the foil is connected to a first foil layer, extending towards and being connected to the last foil layer and extending towards and again being connected to the first foil layer.
Device according to anyone of the preceding claims, characterized in that the supports near the central axis are positioned around a central support tube.
Device according to any anyone of the preceding claims, characterized in that at least near the central axis at least one additional support is situated between a first support and a second support, where, of the supports near the central axis, the first support is situated between two foil layers of a first foil, which foil layers of the first foil are connected to one another near the central axis, whereas the additional support, the two foil layers of a first foil as well as the first support are situated between two foil layers of a second foil, which foil layers of the second foil are connected to one another near the central axis.
Method suitable for the manufacture of a device according to anyone of the preceding claims, characterized in that a number of supports extending parallel to one another are positioned between two elements rotatable on a central axis and are coupled therewith, wherein first ends of the spacers are coupled with the supports, and the foil is wound in a reciprocating way alternately in foil layers around the first and second end of the spacers, wherein the spacers and the foil layers extend substantially parallel to one another where, of the supports near the central axis, first supports are situated between two foil layers, which foil layers are connected to one another near the central axis, whereas second supports are situated between two successive first supports, whereupon the elements along with the foil layers and the spacers are rotated around the central axis, wherein the foil layers and the spacers are positioned spirally around the central axis.
Dependencies are inferred from the claim text.